Revisiting the Informal Sector: A General Equilibrium Approach

Chaudhuri, Sarbajit and Mukhopadhyay, Ujjaini (2009): Revisiting the Informal Sector: A General Equilibrium Approach. Published in: Book published by Springer, New York. http://www.springer.com/economics/development/book/978-1-4419-1193-3 No. ISBN: 978-1-4419-1193-3 (print) 978-1-4419-1194-0 (online) (October 2009): 01-243.

Abstract

During the last 50 years with unprecedented population growth and urbanization, economic development, particularly in developing countries failed to generate adequate employment and income opportunities in the modern sector, compelling the surplus labour force to generate its own means of employment and survival in the informal sector. The main characteristics of the informal sector are easy entry for the new enterprises, reliance on indigenous resources, family ownership of enterprises, small scale of operations and low productivity, labour-intensive and adapted technology, reliance of workers on informal sources of education and skills, unregulated and competitive markets and lack of governmental support. The earlier contention that the informal sector epitomizes the ‘residual’ sector or a sector of last resort has been belied by a plethora of evidences indicating its dynamic character and its instrumental role in ameliorating unemployment and propelling the developing economies towards growth and prosperity. This conceptual metamorphosis regarding the informal sector has stimulated revived interest in the phenomenon among development economists, with quite a few books dealing with the sector analytically or empirically.

However, the theoretical analysis of the different aspects of the sector is equally important, especially for formulation of appropriate policy prescriptions. Comparative static results, in many cases, diverge from the conventional wisdom. We noticed that although various authors have published theoretical papers in different journals, there are very few books that try to understand the informal sector in a theoretical framework. This lacuna inculcated in us an interest to write this book. It is mainly targeted towards postgraduate students of development economics with interest in the informal sector and researchers who are pursuing theoretical research on informal sector.

In this book we endeavour to give an insight into the diverse aspects of the ‘multidimensional’ informal sector, its role in the context of unemployment, child labour, globalisation, environment, etc. and its multi-faceted interaction with the other sectors of the economy. Most importantly, we give an outline of the earlier doctrines, elucidate on the newer ones and critically review the contradictions within them to trace the nature and direction of desirable policy parameters that may be relevant in the present scenario. We have stylized the informal sector within different established general equilibrium frameworks. We have incorporated the informal sector in the traditional Heckscher-Ohlin model; considered the dualistic approach within the Harris-Todaro framework and also embraced the theories of dependency and/or underdevelopment where the focus shifts from marginalization to the structural linkages that exist between the informal and formal sectors in the form of subcontracting. We have considered situations, albeit in different models, where the informal sector produces internationally traded final commodity, non-traded final commodity, and traded and non-traded intermediate goods. Thus, although not exhaustive, we have tried to deal with most of the dimensions of the sector.

• Item Type: MPRA Paper
• Language: English
• Keywords: Informal sector - economic development - general equilibrium approach - globalization - unemployment - urban development - wage inequality
• Subjects: F - International Economics > F2 - International Factor Movements and International Business; F - International Economics > F2 - International Factor Movements and International Business > F21 - International Investment ; Long-Term Capital Movements; I - Health, Education, and Welfare > I3 - Welfare, Well-Being, and Poverty; J - Labor and Demographic Economics > J2 - Demand and Supply of Labor; J - Labor and Demographic Economics > J2 - Demand and Supply of Labor > J21 - Labor Force and Employment, Size, and Structure; J - Labor and Demographic Economics > J6 - Mobility, Unemployment, Vacancies, and Immigrant Workers; J - Labor and Demographic Economics > J6 - Mobility, Unemployment, Vacancies, and Immigrant Workers > J64 - Unemployment: Models, Duration, Incidence, and Job Search; J - Labor and Demographic Economics > J6 - Mobility, Unemployment, Vacancies, and Immigrant Workers > J68 - Public Policy; O - Economic Development, Innovation, Technological Change, and Growth > O1 - Economic Development; O - Economic Development, Innovation, Technological Change, and Growth > O1 - Economic Development > O12 - Microeconomic Analyses of Economic Development; O - Economic Development, Innovation, Technological Change, and Growth > O1 - Economic Development > O17 - Formal and Informal Sectors ; Shadow Economy ; Institutional Arrangements; O - Economic Development, Innovation, Technological Change, and Growth > O2 - Development Planning and Policy; O - Economic Development, Innovation, Technological Change, and Growth > O2 - Development Planning and Policy > O24 - Trade Policy ; Factor Movement Policy ; Foreign Exchange Policy

References

Addison, T., Bhalotra, S. and Heady, C. (1997). ‘Child Labour in Pakistan and Ghana’, University of Warwick, Mimeo.

Agenor, P.R. (1996). ‘The Labour Market and Economic Adjustment’, IMF Staff Papers 32, pp. 261-355.

Agenor, P.R. and Montiel, P. (1995). Development Macroeconomics. Princeton University Press, New Jersey.

Aghion, P., Burgess, R., Redding, S. and Zilibotti, F. (2003). ‘The Unequal Effects of Liberalisation: Theory and Evidence from India’, Mimeo. Harvard, LSE, and IIES.

Ali, S.M., Cotton, A. and Coad, A., (1993). ‘Informal Sector Waste Recycling’, Paper presented at the 19th WEDC Conference on Water, Sanitation, Environment and Development: 153-155 Accra, Ghana.

Arias, O, and Sosa, E., W. (2004). Subjective and Objective Poverty in Bolivia, Background paper for the 2005 World Bank Bolivia Poverty Assessment.

Baland, J. and Robinson, J.A. (2000). ‘Is Child Labour Inefficient?’, Journal of Political Economy, 108(4), pp. 663-679.

Bandyopadhyay, S., (2006). ‘Illegal immigration and Second Best Import Tariffs’, Review of International Economics,14(1), pp. 93-103.

Banerjee, B. (1983). ‘The Role of the Informal Sector in the Migration Process: A Test of Probabilistic Migration Models and Labour Market Segmentation for India’, Oxford Economic Papers, 35 (3), pp. 399-422.

Banerjee, B. (1986). Rural to Urban Migration and the Urban Labour Market: A Case Study of Delhi, Mumbai, Himalaya Publishing House.

Bartone, C., Leith, L., Triche, T. and Schertenleid, R., (1991). ‘Private Sector Participation in Municipal Solid Waste Service: Experiences in Latin America’, Waste Management and Research, 9, pp. 495-509.

Basu, K. (1984). The Less Developed Economy, Oxford University Press, New Delhi.

Basu, K. (1998). Analytical Development Economics: The Less Developed Economy Revisited, Oxford University Press. Delhi, Calcutta, Chennai, Mumbai, Chapter 13.

Basu, K. (1999). ‘Child Labour: Cause, Consequence, and Cure, with Remarks on International Labour Standards’, Journal of Economic Literature, 37 (September), pp. 1083-1119.

Basu, K. and Van, P.H. (1998). ‘The Economics of Child Labour’, American Economic Review, 88(3), pp. 412-427.

Basu, K. and Bell, C. (1991). ‘Fragmented duopoly: Theory and applications to backward agriculture’, Journal of Development Economics, 36, pp. 259-81.

Batra, R.N. (1973). Studies in the Pure Theory of International Trade, Macmillan, London.

Baud, I. and Schenk H. (eds.) (1994). Solid Waste Management: Modes, Assessments, Appraisals and Linkages in Bangalore, Manohar, New Delhi.

Baud, I., M. Huysman and H. Schenk. (1994). New approaches to urban solid waste management: linkages between formal and informal systems of source separation, collection and recycling in Indian cities. University of Amsterdam, the Netherlands.

Bedi, A.S. and Garg, A. (2000). ‘The Effectiveness of Private versus Public Schools: The Case of Indonesia’, Journal of Development Economics, 61, pp. 463-494.

Beker, V.A. (2000). ‘Globalisation and Unemployment: The Case of Argentina’, Universidad de Belgrano. Buenos Aires.

Beladi, H. and Marjit, S. (1992a). ‘Foreign Capital and Protectionism’, Canadian Journal of Economics, 25, pp. 233-238.

Beladi, H. and Marjit, S. (1992b). ‘Foreign Capital, Unemployment and National Welfare’, Japan and the World Economy, 4, pp. 311-317.

Beladi, H. and Yabuuchi, S. (2001). ‘Tariff-induced Capital Inflow and Welfare in the Presence of Unemployment and Informal Sector,’ Japan and the World Economy, 13, pp. 51-60.

Beneria, L. (1989). ‘Subcontracting and Employment Dynamics in Mexico City’, in Portes, A., Castells, M. and Benton, L.A. (eds), The Informal Economy, Johns Hopkins University Press.

Bentley, E. (1988). Struggle for survival; Organizing the paper pickers of Ahmedabad. Mahila SEWA Trust. Ahmedabad, India.

Beukering P. and V. Sharma (ed.), (1996). ‘International Trade And Recycling in Developing Countries: the Case of Wastepaper in India’, CREED Report, International Institute or Environment and Development (IIED), London.

Beukering, P., et al., (1997). ‘Trends and Issues in the Plastics Cycle in China with Special Emphasis on Trade and Recycling’, CREED Working Paper No. 16, International Institute or Environment and Development (IIED), London.

Beyer, H., Rojas, P. and Vergara, R. (1999). ‘Trade Liberalisation and Wage Inequality’, Journal of Development Economics, 59(1), pp. 103-123.

Bhaduri, A. (1977). ‘On the Formation of Usurious Interest Rates in Backward Agriculture’. Cambridge Journal of Economics, 1, pp. 341-52.

Bhalotra, S. (1999). Child Labour in Rural Pakistan: Myths and Data, Draft, Department of Applied Economics, University of Cambridge.

Bhalotra, S. (2000). ‘Is Child Work Necessary?’, Discussion Paper no. 26, STICERD, London School of Economics, August.

Bhalotra, S. (2002). ‘The Impact of Economic Liberalisation on Employment and Wages in India’, ILO, Geneva.

Biller D. and Quintero J. D. (1995). Policy Options to Address Informal Sector Contamination in Urban Latin America: The Case of Leather Tanneries in Bogota, Colombia, Washington: The World Bank, Latin America Technical Department, Environment Division.

Blackman A. and Bannister, G. J. (1996). ‘Community Pressure and Clean Technologies in the Informal Sector: An Econometric Analysis of the Adoption of Propane by Traditional Brickmakers in Cd. Juárez, Mexico’, Discussion Paper 97-16.

Boeri, T. and Garibaldi, P. (2002). ‘Shadow Activity and Unemployment in a Depressed Labour Market’, CEPR Discussion Paper No. 3433.

Bond, E. W. and Chen, T. J. (1987). ‘The Welfare Effects of Illegal Immigration’, Journal of International Economics, 23, pp. 315-328.

Bose, A.N. (1978). Calcutta and Rural Bengal: Small Sector Symbiosis, New Delhi: Minerva Publications.

Botero, J., Djankov, S., La Porta, R., Lopez-de-Silanes, F. and Schleifer, A. (2003). ‘The Regulation of Labour’, NBER Working Paper 9756, National Bureau of Economic Research: Cambridge MA.

Bottomley, A. (1975). ‘Interest Determination in Underdeveloped Rural Areas’, American Journal of Agricultural Economics, 57, pp. 279-91.

Brecher, R.A. and Alejandro, C.F. Diaz (1977). ‘Tariffs, Foreign Capital and Immiserizing Growth’, Journal of International Economics, 7, pp. 317-322.

Brown, D.K., Deardorff, A.V., Stern, R.M. (2001). Child Labour: Theory, Evidence and Policy, Discussion Paper No. 474, Research Seminar in International economics, School of Public Policy, The University of Michigan.

Burra, N. (1997): Born to Work: Child Labour in India, Oxford University Press, Delhi.

Capalleja, D. E. (1994). ‘Regulaciones labourales y mercado de trabajo en México’ in Gustavo Marquez ed., Regulacion del Mercado de Trabajo en America Latina. San Francisco:Centro Internacional para el Desarrollo Economico.

CAPS. (1992). A case study of a privately-initiated solid waste collection management in San Juan, Metro Manila. World Bank Metropolitan Environmental Improvement Programme. Manila, the Philippines.

Carruth, A.A. and Oswald, A.J. (1981). ‘The Determination of Union and Non-union Wage Rates’, European Economic Review, 16, pp. 285-302.

Castells, M. and Portes, A. (1989). ‘World Underneath: The Origins, Dynamics and Effects of the Informal Economy’, in Portes, A., Castells, M. and Benton, L. A., (eds). The Informal Economy: Studies in Advanced and Less Developed Countries, John Hopkins University Press.

Caves, R.E., Frankel, J.A., and Jones, R.W. (1990). World Trade and Payments (5th edition), Scott, Foresman and Little, London: Brown Higher Education.

Chandra, V., Nganou, J. and Noel, C. (2002). ‘Constraints to Growth in Johannesburg’s Black Informal Sector: Evidence from the 1999 Informal Sector Survey’, World Bank Report No. 24449-ZA, June.

Chandra,V. and Khan, M. A. (1993). ‘Foreign Investment in the Presence of an Informal Sector’, Economica, 60, pp. 79-103.

Charmes, J. (1998). ‘Street Vendors in Africa: Data and Methods’, Paper prepared for the

Charmes, J. (2000). ‘Progress in Measurement of the Informal Sector: Employment and Share of GDP’, in Handbook of National Accounting. Household accounting: Experiences in the use of concepts and their compilation, Vol. 1, Household Sector Accounts (New York, United Nations), pp. 153-168.

Chaudhuri, S. (2007). ‘Foreign Capital, Welfare and Unemployment in the Presence of Agricultural Dualism’, Japan and the World Economy, 19(2), pp. 149-165.

Chaudhuri, S. (2005). ‘Labour Market Distortion, Technology Transfer and Gainful Effects of Foreign Capital’, The Manchester School 73(2), pp. 214-227.

Chaudhuri, S. (2003). ‘How and How far to Liberalize a Developing Country with Informal Sector and Factor Market Distortions’, Journal of International Trade and Economic Development, 12 (4), pp. 403-428.

Chaudhuri, S. (2001). ‘Foreign Capital Inflow, Non-traded Intermediary, Urban Unemployment and Welfare in a Small Open Economy: A Theoretical Analysis’, Pakistan Development Review, 40 (3), pp. 225-235.

Chaudhuri, S. (2000). ‘Rural-urban Migration, Informal Sector, Urban Unemployment and Development Policies - A Theoretical Analysis,’ Review of Development Economics, 4, pp. 353-364.

Chaudhuri, S. and Banerjee, D. (2007). ‘Economic Liberalisation, Capital Mobility and Informal Wage in a Small Open Economy: A theoretical Analysis’, Economic Modelling, 24(6), 924-940.

Chaudhuri, S. and Dwibedi, J. K. (2007). ‘Foreign Capital Inflow, Fiscal Policies and Incidence of Child Labour in A Developing Economy’, Manchester School, 75(1), pp. 17-46.

Chaudhuri, S. and Yabuuchi, S. (2007). ‘Economic Liberalisation and Wage Inequality in the Presence of Labour Market Imperfection’, International Review of Economics and Finance, 16 (4), pp. 592-603.

Chaudhuri, S. and Dwibedi, J. K. (2006). ‘Trade Liberalisation in Agriculture in Developed Nations and Incidence of Child Labour in a Developing Economy’, Bulletin of Economic Research, 58(2), pp. 129-150.

Chaudhuri, S. and Mukhopadhyay, U. (2006), ‘Pollution and Informal Sector: A Theoretical Analysis’, Journal of Economic Integration, 21 (2), pp. 363-378.

Chaudhuri, S., Yabuuchi, S. and Mukhopadhyay, U. (2006). ‘Inflow of Foreign Capital and Trade Liberalisation in a Model with an Informal Sector and Urban Unemployment’, Pacific Economic Review, 11(1), pp. 87-103.

Chaudhuri, S. and Gupta, M.R. (2004). ‘Child Labour and Trade Liberalisation in a Developing Economy’, Japanese Economic Review, 55(2), pp. 201-211.

Chaudhuri, S. and Mukherjee, U. (2002). ‘Removal of Protectionism, Foreign Investment and Welfare in a Model of Informal Sector,’ Japan and the World Economy, 14, pp. 101-16.

Chaudhuri, S. and Mukhopadhyay, U. (2002). ‘Economic Liberalisation and Welfare in a Model with an Informal Sector,’ The Economics of Transition, 10, pp. 143-172.

Chen, M., Jhabvala, R. and F. Lund. (2002). ‘Supporting Workers in the Informal Economy: a Policy Framework’, Geneva, Working Paper on the Informal Economy 2. Geneva: International Labour Office.

Chen, M.A. (2001). ‘Women in the Informal Sector: A Global Picture, the Global Movement’, SAIS Review, Winter-Spring 2001.

Choi, J.P. and Thum, M.P. (2005). ‘Corruption and the Shadow Economy,’ International Economic Review, 46 (3) , pp. 817-36.

Cichello, P. (2005). ‘Hindrances to Self employment: Evidence from the 2000 Khayelitsha Mitchell’s Plain Survey’, CSSR Working Paper

Cichello, P., Almeleh, C., Ncube L., and Oosthuizen M. (2005). ‘Perceived Barriers to Entry Into Self Employment in Khayelitsha, South Africa: Crime, Risk and Start-up Capital Dominate Profit Concerns’, Prepared for the Northeast University Development Consortium (NEUDC) Conference, September.

Cointreau-Levine, S. (1994). Private Sector Participation in Municipal Solid Waste Services in Developing Countries, Vol. 1. The Formal Sector,. Urban Management Programme Discussion Paper No. 13. World Bank. Washington, United States.

Cole, W. E. and Sanders, R.D. (1983). ‘Interstate Migration in Mexico: Variations on the Todaro Theme’, Journal of Development Economics, 12, pp. 341-354.

Cole, W. E. and Sanders, R.D. (1985). ‘Internal Migration and Urban Employment in the Third World’, American Economic Review, 75 (3), pp. 481- 494.

Consultora Nordeste. (1998). Investigacion del Mercado de Creditos para Microempresas en las Ciudades de San Salvador de Jujuy y Palpala, Resistencia, Chaco, Argentina.

Corden, W. M. and Findlay, R. (1975). ‘Urban Unemployment, Intersectoral Capital Mobility and Development Policy in a Dual Economy,’ Economica, 42, pp. 59-78.

Cunningham, W. and Maloney, W. F. (2001). ‘Heterogeneity in the Mexican Micro-enterprise Sector: An Application of Factor and Cluster Analysis’, Economic Development and Cultural Change, 5, pp.131-156.

Currie, J. and Harrison, A. (1997). ‘Trade Reform and Labour Market Adjustment in Morocco’, Journal of Labour Economics, 15, (s3), pp. S44-S71.

Dasgupta, P. and Ray, D. (1990). Adapting to Undernourishment: The Biological Evidence and its Implications, in Dreze, J. and Sen, A., (eds.) The Political Economy of Hunger, Oxford: Clarendon Press.

Datta Chaudhuri, T. (1989). ‘A Theoretical Analysis of the Informal Sector’, World Development, 17(3), pp. 351-55.

De Soto, H. (1989). The Other Path: The Invisible Revolution in the Third World, New York, Harper and Row.

Dessy, S. and Pallage, S. (2003). ‘Taxes, Inequality and the Size of the Informal Sector’, Journal of Development Economics, 70, pp. 225-33.

Dessy, S.E. (2000). ‘A Defense of Compulsive Measures against Child Labour’, Journal of Development Economics, 62, pp. 261-275.

Dev, M. (2000). ‘Economic Liberalisation and Employment in South Asia’, Economic and Political Weekly, (January), pp. 40-51.

Djankov, S. (2003). ‘The Informal Economy: Large and Growing in Most Developing Countries’, The World Bank Archived Discussion, June.

Duraiappah, A., et al., (1999). ‘The Plastics Sector in China: Issues in Production, Recycling and International Trade’, CREED Working Paper No. 27, International Institute or Environment and Development (IIED), London. http://www.iied.org/docs/eep/creed27e.pdf

Edmonds, E. and Pavcnik, N. (2005). ‘The Effect of Trade Liberalisation on Child Labour’, Journal of International Economics, 65, pp. 401-419.

Edmonds, E., Pavcnik, N. and Topalova, P. (2007). ‘Trade Adjustment and Human Capital Investments: Evidence from Indian Tariff Reform’, Working paper no. 12884 (National Bureau of Economic Research, Inc, USA).

EQI. (1991). The recycling of solid waste in Cairo, Egypt, WAREN project, WASTE Consultants. Gouda, the Netherlands.

Eswaran, M. (1996). ‘Fertility, Literacy, and the Institution of Child Labour’, CRESP Discussion Paper: DP No. 36, The University of British Columbia.

Ethier, W. J. (1986). ‘Illegal Immigration: The Host-Country Problem’, American Economic Review, 76 (1), pp. 56-71.

Feenstra, R.C. and Hanson, G.H. (1996). ‘Foreign Investment, Outsourcing and Relative Wages’, in Feenstra, R., Grossman, G. and Irwin, D. (eds.), Political Economy of Trade Policies: Essays in Honor of J. N. Bhagwati, Cambridge, MIT Press, MA.

Feenstra, R.C. and Hanson, G.H. (1997). ‘Foreign Direct Investment and Relative Wages: Evidence from Mexico's Maquiladoras’, Journal of International Economics, 42, pp. 371-394.

Fei, J. C. H. and Ranis, G. (1964). Development of the Labour Surplus Economy: Theory and Policy, Homewood, IL: Richard A. Irwin, Inc.

Feige, E.L. (1989). The Underground Economies: Tax Evasion and Information Distortion (ed), Cambridge University Press.

Fields, G. S. (1975). ‘Rural-Urban Migration, Urban Unemployment and Underemployment, and Job Search Activity in LDC’s’, Journal of Development Economics, 2, pp. 165-188.

Fields, G. S. (1990). ‘Labour Market Modeling and the Urban Informal Sector: Theory and Evidence’, in Turnham, D., Salomé, B. and Schwarz, A. (eds), The Informal Sector Revisited, Paris, Development Centre of the Organisation for Economic Co-Operation and Development.

Findlay, R. (1978). ‘Relative Backwardness, Direct Foreign Investment and the Transfer of Technology: A Simple Dynamic Model’, Quarterly Journal of Economics, 92, pp. 1-16.

Flórez, C. E. (2002). ‘The Function of the Urban Informal Sector in Employment: Evidence from Colombia 1984-2000’, Documento CEDE No. 2002-04, Abril. Universidad de Los Andes.

Flórez, C. E. (2003). ‘Migration and the Urban Informal Sector in Colombia’, Paper prepared for Conference on African Migration in Comparative Perspective, Johannesburg, South Africa, 4-7 June.

Fortin, B., Marceau, N. and Savard, L. (1997). ‘Taxation, Wage Controls and the Informal Sector’, Journal of Public Economics, 66 (2), pp. 239-312.

Gandhi-Kingdon, G. and Knight, J. (2001). ‘Unemployment in South Africa: The Nature of the Beast,’ Centre for the Study of African Economies, University of Oxford, WPS/2001-15.

Geertz, C. (1963). Peddlers and Princes: Social Change and Economic Modernization in Two Indonesian Towns, Chicago, University of Chicago.

Gindling, T.H. and Terrell, K. (2005). ‘The Effect of Minimum Wages on Actual Wages in Formal and Informal Sectors in Costa Rica’, World Development, 33, pp. 1905-1921.

Goldberg, P.K. and Pavcnik, N. (2003). ‘The Response of the Informal Sector to Trade Liberalisation’, Journal of Development Economics, 72, pp. 463-496.

Grace, R., et al., (1978). ‘Secondary Materials and International Trade’, Journal of Environmental Economics and Management, 5, pp.172-186.

Gramlich, E. (1976). ‘The Impact of Minimum Wages on Other Wages, Employment, and Family Incomes’, Brookings Papers on Economic Activity, 2:76, pp. 409- 451.

Grinols, E. (1991). ‘Unemployment and Foreign Capital: The Relative Opportunity Costs of Domestic Labour and Welfare’, Economica, 58, pp. 107-21.

Grootaert, C. and Kanbur, R. (1995). ‘Child labour: A Review’, Background Paper for the 1995 World Developent Report on Labour, World Bank.

Grote, U., Basu, A.K. and Weinhold, D. (1998). Child Labour and the International Policy Debate - The Education/Child Labour Trade Off and the Consequences of Trade Sanctions, ZEF (publ.), ZEF-Discussion Papers on Development Policy No.1, Bonn.

Gupta M. R. (1993). ‘Rural-Urban Migration, Informal Sector and Development Policies: A Theoretical Analysis’, Journal of Development Economics, 41, pp. 137-51.

Gupta, M. R. (1995). ‘Foreign Capital, Income Inequality and Welfare in a Harris-Todaro Model’, Journal of Development Economics, 45(2), pp. 407-14.

Gupta, M.R. (1994). ‘Duty-Free Zone, Unemployment and Welfare: A Note,’ Journal of Economics, 59(2). 217-36.

Gupta, M.R. (1997): ‘Foreign Capital and Informal Sector: Comments on Chandra and Khan’, Economica, 64, pp. 353- 363.

Gupta, M.R. (2000). ‘Wage Determination of a Child Worker: A Theoretical Analysis’, Review of Development Economics, 4(2), pp. 219-228.

Gupta, M.R. (2002). ‘Trade Sanctions, Adult Unemployment and the Supply of Child Labour: A Theoretical Analysis’, Development Policy Review, 20(3), pp. 317-32.

Hamid, S. (1994). ‘A Micro Analysis of Urban Child Labour: Some Determinants of Labour and its Conditions’, Pakistan Development Review, 33(3), pp. 1249-1271.

Hanson, G.H. and Harrison, A. (1999). ‘Trade Liberalisation and Wage Inequality in Mexico’, Industrial and Labour Relations Review, 52(2), pp. 271-288.

Harberger, A. C. (1971). ‘On Measuring the Social Opportunity Cost of Labour’, International Labour Review, 103, pp. 559–79.

Harding, P. and Jenkins, R. (1989). The Myth of the Hidden Economy: Towards a New Understanding of Informal Economic Activity, Open University Press, Milton Keynes, Philadelphia.

Harris, J., R. and Todaro, M. P. (1970). ‘Migration, Unemployment and Development: A Theoretical Analysis’, American Economic Review, 60, pp.126-142.

Harrison, A. and Hanson, G. (1999). ‘Who Gains from Trade Reform? Some Remaining Puzzles’, Journal of Development Economics, 59(1), pp. 125-154.

Hart, K. (1971). ‘Informal Income Opportunities and Urban Employment in Ghana’, in R. Jolly et al. (eds.) Third World Employment: Problems and Strategy, Harmondsworth, Penguin.

Hasan, A. (2002). ‘The Changing Nature of the Informal Sector in Karachi as a Result of Global Restructuring and Liberalisation’, Environment & Urbanization, 14(1), pp. 69 -78.

Hausmann, R. and Gavin, M. (1996). ‘Security Stability and Growth in a Shock-prone Region: the Policy Challenge for Latin America,’ IADB Working Paper Series, 315, Washington, DC.

House, W. J. (1984). ‘Nairobi’s Informal Sector: Dynamic Entrepreneurs or Surplus Labour?’, Economic Development and Cultural Change, 32, pp. 277-302.

Ihrig, J. and Moe, K. (2004). ‘Lurking in the Shadows: The Informal Sector and Government Policy’, Journal of Development Economics, 73 (2), pp. 541-57.

ILO (2006). Global Employment Trends Brief, Geneva.

International Labour Organization (1972). Employment, Incomes and Equality: A Strategy for Increasing Productive Employment in Kenya, Geneva.

International Labour Organization (2000). Every Child Counts, see www.ilo.org/public/english/ standards/ipec/simpoc/others/globalest.pdf

International Labour Organization (2002b). ‘A Future Without Child Labour?’, International Labour Conference, 90th Session June 2002, International Labour Office, Geneva.

International Labour Organization (2002a). Decent Work in the Informal Economy, Geneva.

International Labour Organization (2003). Guidelines concerning a statistical definition of informal employment, endorsed by the Seventeenth International Conference of Labour Statisticians (November-December 2003); in: Seventeenth International Conference of Labour Statisticians (Geneva, 24 November - 3 December 2003), Report of the Conference; Doc. ICLS/17/2003/R; International Labour Office, Geneva.

International Labour Organization (2005). Facts on Child Labour, see www.ilo.org/communication.

International Monetary Fund (1998). World Economic Outlook, May, Washington, DC.

Jafarey, S. and Lahiri, S. (2002). ‘Will Trade Sanctions Reduce Child Labour? The Role of Credit Markets’, Journal of Development Economics, 68(1), pp. 137-156.

Jenkins, C. and Knight, J. (2002). The Economic Decline of Zimbabwe: Neither Growth nor Equity, London: Palgrave.

Jhabvala, R., Sudarshan, R. M. and Unni, J. (2003). Informal Economy Centrestage: New Structures of Employment. (New Delhi: Sage Publications).

Jimenez, E. and Lockheed, M. (1995). ‘Public and Private Secondary Education in Developing Countries: A Comparative Study’, World Bank Discussion Paper, no. 309. The World Bank, Washington, DC.

Johnson, S., Kauffman, D. and Shleifer, A. (1997). ‘The Unofficial Economy in Transition’, Brookings Papers on Economic Activity, 2, pp. 159-239.

Jones, P. (1997). ‘The Impact of Minimum Wage Legislation in Developing Countries where Coverage is Incomplete’, WPS/98-2, Centre for the Study of African Economies, Institute of Economics and Statistics, University of Oxford.

Jones, R. W. and Marjit, S. (1992). ‘International Trade and Endogenous Production Structures’, in W. Neuefeind and R. Riezman (eds.): Economic Theory and International Trade: Essays in Memoriam J. Trout Rader (Springer-Verlag), pp. 173-96.

Jones, R.W. (1965). ‘The Structure of Simple General Equilibrium Models’, Journal of Political Economy, 73, pp. 551-572.

Jones, R.W. (1971). ‘A Three-factor Model in Theory, Trade and History’ in Bhagwati, J., et al. (eds.), Trade, Balance of Payments and Growth. North-Holland, Amsterdam.

Jones, R.W. and Marjit, S. (2003). ‘Economic Development, Trade and Wages’, German Economic Review, 4(1), pp. 1-17.

Jones, R.W. and Neary, P. (1984). ‘Positive Theory of International Trade’, Jones, R.W. and P. B. Kenen (eds.), Handbook of Development Economics Vol. 1, North-Holland, pp. 1-62.

Joshi, H. and Joshi, V. (1976). Surplus Labour and The City: A Study of Bombay, New Delhi, Oxford University Press.

Kaplinsky, R. (2001). ‘Globalisation and Economic Insecurity’, IDS Bulletin 32(2), pp. 13-24.

Kar S., and Marjit, S. (2001). ‘Informal Sector in General Equilibrium: Welfare Effects of Trade Policy Reforms’. International Review of Economics and Finance, 10, pp. 289–300.

Katz, E. and Stark, O. (1986). ‘Labour Migration and Risk Aversion in Less-developed Countries,’ Journal of Labour Economics, 4, (1), pp. 134-149.

Khan, A. R. (1998). ‘The Impact of Globalisation in South Asia’, in A. S. Bhalla (ed.), Globalisation, Growth and Marginalization. New Delhi: Macmillan India Ltd.

Khan, M. A. (1982). ‘Tariffs, Foreign Capital and Immiserizing Growth with Urban Unemployment and Specific Factors of Production’, Journal of Development Economics, 10, pp. 245-256.

Kingdon, G. and Knight, J. (2005). ‘How Flexible are Wages in Response to Local Unemployment in South Africa?’, Centre for the Study of African Economies, University of Oxford, Working Paper GPRG-WPS-015.

Kingdon, G. and Knight, J. (2007). ‘Unemployment in South Africa, 1995-2003: Causes, Problems and Policies’, Journal of African Economies, 16(5), pp. 813–848.

Knight, J. (2007). ‘China, South Africa and the Lewis Model’, Paper for the WIDER workshop, Southern Engines of Growth, Beijing, January 12-13.

Knight, J. and Song, L. (2005). Towards a Labour Market in China, Oxford: Oxford University Press.

Koizumi, T. and Kopecky, K.J. (1977). ‘Economic Growth, Capital Movements and the International Transfer of Technical Knowledge’, Journal of International Economics, 7, pp. 45-65.

Kolstad C. D., (2000). Environmental Economics, Oxford University Press.

Kruger, D. (2007). ‘Coffee Production Effects on Child Labour and Schooling in Rural Brazil’, Journal of Development Economics, 82, pp. 448-463.

Kugler, A. (1999). ‘The Impact of Firing Costs on Turnover and Unemployment: Evidence from The Colombian Labour Market Reform’, International Tax and Public Finance Journal, 6(3), pp. 389-410.

Kumar, N. (2001). ‘Informal Sector in India: Case of Micro-enterprises in Services Sector”, in Oberai, A.S. and Chadha, G. K. (eds.), Job Creation in Urban Informal Sector in India: Issues and Policy Options (New Delhi, ILO/SAAT).

Lee, E. (1998). The Asian Financial Crisis: The Challenge for Social Policy, International Labour Organization, Geneva.

Leite, P. G., McKinley, T. and Osorio. R.G. (2006). ‘The Post-apartheid Evolution of Earnings Inequality in South Africa, 1995-2004”, Working Paper # 32, International Poverty Centre, UNDP, Brazil.

Leonard, M. (2001). Invisible work, op. cit.; and idem: “Coping strategies in developed and developing societies”, op. cit. See also K. Gërxhani: Politico-economic institutions and the informal sector: A spontaneous free market in Albania, discussion paper (Amsterdam, Tinbergen Institute and University of Amsterdam, 2000); ILO: Report of the Technical Workshop on Old and New Facets of Informality, in Geneva, 2 Mar.

Lewis, A. (1954). ‘Economic Development with Unlimited Supply of Labour’, Manchester School, 22, pp. 139- 191. Reprinted in A.N. Agarwal and S.P. Singh (eds.) Economics of Underdevelopment (1958), Oxford University Press.

Loayza, N. V. (1996). ‘The Economics of the Informal Sector: A Simple Model and Some Empirical Evidence from Latin America”, Carneige-Rochester Conference Series on Public Policy, 45, pp. 129–162.

Majumdar, D. (1993). ‘Labour Markets and Adjustments in Open Asian Economies: The Republic of Korea and Malaysia’, World Bank Economic Review, 7, pp. 349-380.

Maldonado, C. (1995). ‘The Informal Sector Legislation or Laissez-faire?’, in ILO Trade Unions and The Informal Sector: Towards a Comprehensive Strategy, Geneva.

Maloney, W. F. (2004). ‘Informality Revisited’, World Development, 32(7), pp. 1159-1178.

Mansfield , E.M. (1961). ‘Technical change and the rate of imitation’, Econometrica, 29, pp. 741-766.

Mansfield , E.M. (1968). Industrial Research and Technological Innovation, New York, Norton.

Marcouiller, D., Castilla, V. R. and Woodruff, C. (1997). ‘Formal Measures of the Informal Sector Wage Gap in Mexico, El Salvador, and Peru’, Economic Development and Cultural Change, 45, pp. 367-392.

Marjit, S. (1991). ‘Agro-based Industry and Rural-urban Migration: A Case for an Urban Employment Subsidy’, Journal of Development Economics, 35(2), pp. 393-398.

Marjit, S. (2003). ‘Economic Reform and Informal Wage  A General Equilibrium Analysis’, Journal of Development Economics, 72, pp. 371-378.

Marjit, S. (2003). ‘Economic Reform and Informal Wage A General Equilibrium Analysis’, Journal of Development Economics, 72 (1), pp. 371-378.

Marjit, S. and Acharyya, R. (2003). International Trade, Wage Inequality and the Developing Economy  A General Equilibrium Approach, Germany: Springer-Verlag.

Marjit, S. and Beladi, H. (1996). ‘Protection and Gainful Effects of Foreign Capital’, Economics Letters, 53 (3), pp. 311-316.

Marjit, S. and Beladi, H. (2002). ‘The Stolper-Samuelson Theorem in a Wage Differential Framework’, Japanese Economic Review, 53(2), pp. 177-181.

Marjit, S. and Kar, S. (2005). ‘Emigration and Wage Inequality’, Economics Letters, 88, pp. 141-145.

Marjit, S., Beladi, H. and Chakrabarti, A. (2004). ‘Trade and Wage Inequality in Developing Countries’, Economic Inquiry, 42(2), pp. 295-303.

Marjit, S., Broll, U. and Sengupta, S. (2000). ‘Trade and Wage-gap in Poor Countries: The Role of the Informal Sector’, in A. Bose et al. (eds.), Macroeconomics, Trade and Institutions: Essays in Honour of M.K. Rakshit, Oxford University Press, Kolkata.

Markusen, J.R. (1995). ‘The Boundaries of Multinational Enterprises and the Theory of International Trade’, Journal of Economic Perspectives, 9, pp. 169-189.

Markusen, J.R. (2002). Multinational Firms and the Theory of International Trade, Cambridge: MIT Press.

Mazumdar, D. (1976). ‘The Urban Informal Sector’, World Development, 4 (8), pp. 655-679.

Mazumdar, D. (1983). ‘Segmented Labour Markets in LDCs’, American Economic Review, 73, pp. 254-259.

McGee, T.G. (1971). The Urbanized Process in the Third World, London, G. Bell and Sons.

McGee, T.G. (1973). ‘Peasants in the Cities: A Paradox, A Paradox, A Most Ingenious Paradox’, Human Organization, 32(2), pp. 135-142.

Meagher, K. (2008). ‘Crisis, Informalization and the Urban Informal Sector in Sub-Saharan Africa’, Development and Change, 26 (2), pp. 259 – 284.

Medina, M., and Dows, M. (2000). ‘A Short History of Scavenging’, Comparative Civilizations Review, 42.

Mincer, J. (1976). ‘Unemployment Effects of Minimum Wage’, Journal of Political Economy, 84(4), Part Two, pp. S87-S104.

Mingione, E. (1984). ‘The Informal Sector and the Development of Third World Cities’, Regional Development Dialogue, 5(2), pp. 63-76.

Mishra, A. (1994). ‘Clientelization and Fragmentation in Backward Agriculture: Forward Induction and Entry Deterrence’, Journal of Development Economics, 45, pp. 271-85.

Mitra, A. (2005). ‘Women in the Urban Informal Sector: Perpetuation of Meagre Earnings’, Development and Change, 36 (2), pp. 291-316 (26),

Mohsin, N. (1996). Counting and Accounting of Child Labour in Unorganized Sectors, Labour and Development, 1(2).

Moser, Caroline O.N. (1978). ‘Informal Sector or Petty Commodity Production: Dualism or Dependence in Urban Development?’, World Development, 6, (9/10), pp. 1041-1064.

Motta, M. (1992). ‘Multinational Firm and the Tariff-jumping Argument: A Game Theoretic Analysis With Some Unconventional Conclusions’, European Economic Review, 36(8), pp. 1557-1571.

Mukhopadhyay, U. (2007). ‘International Trade in Wastes, Recycling and the Informal Sector - A Theoretical Analysis’, The Journal of Solid Waste Technology and Management, 33 (4), pp. 210- 218.

Neary, J.P. (2002). ‘Foreign Direct Investment and the Single Market’, The Manchester School, 70 (3), pp. 291-314.

Neary, J.P. (2003). ‘Cross-Border Mergers as Instruments of Comparative Advantage’, Working Paper, University College Dublin.

Norback, P.J. and Persson, L. (2002). ‘Investment Liberalisation: Who Benefits from Cross-Border Mergers and Acquisitions?’, CEPR Discussion paper 3166.

Ogilvie, S.M. (1996). ‘Opportunities and Barriers to Plastics Recycling’, AEAT- 0114, Prepared by the Recycling Advisory Unit of the National Environmental Technology Centre for the Department of Trade and Industry, NETC, Oxfordshire.

Osmani, S.R. (1990). ‘Nutrition and the Economics of Food: Implications of Some Recent Controversies’, in The Political Economy of Hunger (Eds.) Dreze, J., Sen, A., Oxford: Clarendon Press.

Osmani, S.R. (1991). ‘Wage Determination in Rural Labour Markets: The Theory of Implicit Cooperation’, Journal of Development Economics, 34, pp. 3-23.

Papola, T. S. (1981). Urban Informal Sector in a Developing Economy, New Delhi Vikas Publishing House.

Portes, A. and Schauffler, R. (1993). ‘Competing Perspectives on the Latin American Informal Sector’, Population and Development Review, 19(1), pp. 33-60.

Quijano, A. (1974). ‘The Marginal Pole of the Economy and the Marginalized Labour Force’, Economy and Society, 3 (4), pp. 393-428.

Ranis, G. and Stewart, F. (1999). ‘V-Goods and the Role of the Urban Informal Sector in Development’, Economic Development and Cultural Change, 47(2), pp. 259-88.

Ranjan, P. (1999). ‘An Economic Analysis of Child Labour’, Economic Letters, 64, pp. 99-105.

Ranjan, P. (2001). ‘Credit Constraints and the Phenomenon of Child Labour’, Journal of Development Economics, 64, pp. 81-102.

Rauch, J. (1991). ‘Modelling the Informal Sector Formally’, Journal of Development Economics, 35, pp. 33- 47.

Ravallion M. and Wodon, Q. (2000). ‘Does Cheaper Schooling Mean Less Child Labour? Evidence from Behavioural Responses to an Enrollment Subsidy’, Economic Journal, 110, pp. C158-C175.

Ravallion, M. and Wodon, Q. (1999). ‘Does Child Labour Displace Schooling? Evidence on Behavioural Responses to an Enrollment Subsidy’, Paper presented at the Annual Conference of the Royal Economic Society 1999, at the University of Nottingham, England.

Ray, D. (1998). Development Economics, Princeton University Press, New Jersy.

Ray, R (1999). ‘Poverty, Household Size and Child Welfare in India’, University of Tasmania, Mimeo.

Ray, R. (2000). ‘Analysis of Child Labour in Peru and Pakistan: A Comparative Study’, Journal of Population Economics, 13, pp. 3-19.

Ray, R. (2002). ‘Simultaneous Analysis of Child Labour and Child Schooling: Comparative Evidence from Nepal and Pakistan’, Economic and Political Weekly, Dec. 28, pp. 5215-5224.

Revenga, A. (1997). ‘Employment and Wage Effects of Trade Liberalisation: The Case of Mexican Manufacturing’, Journal of Labour Economics, 15(3), pp. S20-S43.

Robbins, D. (1994a). ‘Malaysian Wage Structure and Its Causes’, Harvard Institute for International Development (HIID).

Robbins, D. (1994b). ‘Philippine Wage and Employment Structure 1978 – 1983, HIID.

Robbins, D. (1995a). ‘Earnings Dispersion in Chile after Trade Liberalisation’, HIID.

Robbins, D. (1995b). ‘Trade, Trade Liberalisation and Inequality in Latin America and East Asia: Synthesis of Seven Country Studies’, HIID.

Robbins, D. (1996a). ‘Stolper-Samuelson Lost in the Tropics - Trade liberalisation and Wages in Columbia’, HIID.

Robbins, D. (1996b). ‘HOS Hits Facts: Facts Win: Evidence on Trade and Wages in Developing World’, HIID.

Roberts, B. D. (1989). ‘Employment Structure, Life Cycle and Life Chances: Formal and Informal Sectors in Guadalajara’, in Portes, A., Castells, M. and Benton, L.A. (eds), The Informal Economy, Johns Hopkins University Press.

Rogerson, C. M. (1988). ‘Recession and the informal sector in South Africa’, Development Southern Africa, 5(1), pp. 88 – 96.

Romatet, E. (1983). ‘Calcutta's Informal Sector: Theory and Reality’, Economic and Political Weekly, 18(50), pp. 2115-28.

Rudra, A. (1982). Indian Agricultural Economics: Myths and Realities, Allied Publishers Private Limited, New Delhi.

Ruffer, T. and Knight, J, (2007). Informal Sector Labour Markets in Developing Countries, Oxford Policy Management, United Kingdom.

Rybczynski, T. M. (1955). ‘Factor Endowment and Relative Commodity Prices’, Economica, XXII, (Nov), pp. 336-41.

Santos, M. (1979). The Shared Space: The Two Circuits of the Urban Economy in Underdeveloped Countries, London, Metheuen.

Sarte, P.G. (2000). ‘Informality and Rent-Seeking Bureaucracies in a Model of Long Run Growth’, Journal of Monetary Economics, 46, pp. 173-97.

Schneider, F. and Enste, D.H. (2000). ‘Shadow Economies: Size, Causes, and Consequences’, Journal of Economic Literature, 38, pp. 77-114.

Sethuraman, S.V. (1981). The Urban Informal Sector in Developing Countries: Employment, Poverty and Environment, ILO, Geneva.

Sethuraman, S.V. (1984). The Urban Informal Sector in Developing Countries: Employment, Poverty and Environment, ILO, Geneva (2nd Ed.).

Sethuraman, S.V. and Maldonado, C. (eds.) (1992). Technological Capability in the Informal Sector, International Labour Office Staff.

Sistema de Informacion, Monitoreo y Evaluacion de Programas Sociales (SIEMPRO). (1998). Perfiles del Microempresario en Argentina, Secretaria de Desarrollo Social, Presidencia de la Nación, Buenos Aires.

Skinner, C (2005). ‘Constraints to Growth and Employment: Evidence from the Informal Economy’, School of Development Studies Research Report No.65. Durban: University of KwaZulu Natal.

Stiglitz, J. E. (1982). ‘The Structure of Labour Markets and Shadow Prices in LDCs’, in R. H. Sabot (ed.) Migration and the Labour Market in Developing Countries, Boulder: Westview Press.

Stiglitz, J.E. (2002). Globalisation and Its Discontents, Allen Lane, The Penguin Press.

Stolper, W. F. and Samuelson, P. A. (1941). ‘Protection and Real Wages’, Review of Economic Studies, IX, Nov, pp. 58-73.

Suryahadi, A., Widyanti, W., Perwira, D. and Sumarto, S. (2003). ‘Minimum Wage Policy and its Impact on Employment in the Urban Formal Sector’, Bulletin of Indonesian Economic Studies, 39 (1), pp. 29-50.

Swaminathan, M. (1991). ‘Understanding the Informal Sector: A Survey’, Working Paper 95, WIDER, Finland.

Swaminathan, M. (1998). ‘Economic Growth and the Persistence of Child Labour: Evidence from an Indian City’, World Development, 26 (8), pp. 1513-1528.

Te Velde, D.W. and Morrissey, O. (2002). ‘Foreign Direct Investment, Skills and Wage the Informal Economy’, SoDS Research Report 65, University of KwaZulu-Natal.

Tendulkar, S., Sundaram, D.K. and Jain, L.R. (1996). Macroeconomic Policies and Poverty in India 1966-67 to 1993-94, manuscript, ILO, New Delhi.

Todaro, M. P. (1969). ‘A Model of Labour Migration and Urban Unemployment in Less Developed Countries’, American Economic Review, 39, pp. 138-148.

Tokman, V. (1987). ‘El Sector Informal en America Latina, 15 años después’, EL Trimestre Económico, 54 (215), Julio-Septiembre, pp. 513-536.

Tokman, V. E. (1992). ‘The Informal Sector in Latin America: From Underground to Legality’, in V. E. Tokman, (ed.), Beyond Regulation: The Informal Economy in Latin America, Boulder, Colorado, Lynne Rienner Publishers.

Turnham, D. (1993). Employment and Development: A New Review of Evidence, Paris: OECD.

UN (2000). The World’s Women 2000: Trends and Statistics. New York, UN Statistical Division.

UNCTAD (1996). Statistical Review of International Trade in Paper and Plastic Waste, UNCTAD Commodities Division, Geneva.

UNCTAD (2000). The Least Developed Countries 2000 Report: Overview by the Secretary-General of UNCTAD, Geneva, UNCTAD.

UNICEF (1997). The State of the World’s Children. Oxford: Oxford University Press. United States Environment Protection Agency (1998). ‘Solid Waste and Emergency Response’, EPA530-K-97-008, http://www.epa.gov/osw.

Weeks, J. (1975). ‘Policies for Expanding Employment in the Informal Urban Sector of Developing Economies’, International Labour Review, 3 (1), pp. 1-13.

Weiner, M. (1991). The Child and the State in India: Child Labor and Education Policy in Comparative Perspective, Oxford University Press, Delhi.

Wilson, A., (1994). ‘GATT, Trade Liberalisation and the Environment: An Economic Analysis’, A Report by the Congressional Research Service, USA.

Wilson, D. C., Velis, C. and Cheeseman, C. (2006). ‘Role of Informal Sector Recycling in Waste Management in Developing Countries’, Habitat International, 30, pp. 797–808.

Wood, A. (1997). ‘Openness and Wage Inequality in Developing Countries: The Latin American Challenge to East Asian Conventional Wisdom”, World Bank Research Observer, January.

World Development Report (2006). ‘Equity and Development’, Published by Oxford University Press for the World Bank

Yabuuchi S. and Chaudhuri, S. (2007). ‘International Migration of Labour and Skilled-Unskilled wage Inequality in a Developing Economy’, Economic Modelling, 24(1), pp. 128-137.

Yanagawa, N. (1990): ‘Tariff Jumping Foreign Direct Investment’, The Economic Studies Quarterly, 41(4).