Demand for Meat; Seprability and Structural changes (A Nonparametric Analysis)

Aziz, Babar and Shahnawaz, Malik (2005): Demand for Meat; Seprability and Structural changes (A Nonparametric Analysis). Published in: Journal of Research , Vol. 25, No. 1 (2005): pp. 111-120.

Abstract

This study provides information on the structure of the consumer demand for meat group (1950-51 to 2004-2005) in Pakistan. Nonparametric tests were used on the data set to check the consistency of the data with the theory of revealed preferences, e.g. the Afriat inequalities, GARP and the condition of weak separability. We started with 26 different consumer commodities and employed nonparametric tests to the different groups of commodities. But all other groups except meat group showed violations of generalized axiom of revealed preferences (GARP). So we limited our analysis only to meat group. It was found that there was no violation of GARP in our data set and hence consistent with Afriat inequalities. The data set also met the condition of weak separability. These test procedures imply that the data could have been generated by stable preferences. Furthermore, the existence and the nature of the structural change is checked by using GARP. Tests of structural change do support a shift in demand for fish in 1991-92.

• Item Type: MPRA Paper
• Language: English
• Keywords: Demand Analysis: WARP: SARP: GARP: Structual Change
• Subjects: D - Microeconomics > D1 - Household Behavior and Family Economics > D11 - Consumer Economics: Theory; D - Microeconomics > D1 - Household Behavior and Family Economics > D12 - Consumer Economics: Empirical Analysis; D - Microeconomics > D0 - General > D01 - Microeconomic Behavior: Underlying Principles

References

Afriat, S. N. (1967). The Construction of a Utility Function from Expenditure Data. International Economic Review. 8: 67-77.

Alston, Julian M., and James A. Chalfant (1991). Can We Take the Con Out of Meat Demand Studies? Western Journal of Agricultural Economics. 16: 36-48.

Alston, Julian M., and James A. Chalfant (1992). Consumer Demand Analysis According to GARP. Northeastern Journal of Agricultural and Resource Economics. 21: 125- 139.

Alston, Julian M., and James A. Chalfant (1993). The Silence of the Lambdas: A Test of the Almost Ideal Demand System and the Rotterdam Model. American Journal of Agricultural Economics. 75: 304-313.

Barnett, William A. , Douglas Fisher and A. Serletis (1992). Consumer Theory and the Demand for Money. Journal of Economics Literature. 30(4): 2086-2119.

Burki, Abid A. (1997). Estimating Consumer Preferences for Food Using Time Series Data of Pakistan. Pakistan Development Review. 36(2): 131-153.

Chalfant, James A., and Julian M. Alston (1988). Accounting for Changes in Tastes. Journal of Political Economy. 96:391-410.

Chavas, J. P. (1983). Structural Change in the Demand for Meat. American Journal of Agricultural Economics. 65:148-153.

Chavas, J. P. and T. L. Cox (1990). Nonparametric Demand Analysis: A Duality Approach. Staff paper No. 265. Department of Agricultural Economics University of Wisconsin.

Diewert, W. E., (1973) Afriat Inequalities and Revealed Preference Theory. Review of Economic Studies. 40. 419-426.

Diewert . W. E. And C. Parken (1978). Tests for the Consistency of Consumer Data and Nonparametric Index Numbers. Discussion Paper, Department of Economics, University of Columbia, Vancouver.

Diewert . W. E. And C. Parken (1985). Tests for the Consistency of the Consumer Data. Journal of Econometrics. 30. 127-147.

Eales, James S., and Laurian J. Unnevehr (1988). Demand for Beef and Chicken Products: Separability and Structural Changes. American Journal of Agricultural Economics. 70: 521-532.

Eales, James S., and Laurian J. Unnevehr (1993). Simultaneity and Structural Change in U.S. Meat Demand. American Journal of Agricultural Economics. 75: 259-268.

Government of Pakistan, Finance Division (2004). Economic Survey. Islamabad: Economic Adviser’s Wing. [Various Issues].

Government of Pakistan, Statistics Division (2004). Pakistan Statistical Yearbook. Islamabad: Federal Bureau of Statistics. [Various Issues].

Houthakker, H. S. (1960). Additive Preferences. Econometrica. 28: 244-257.

Koo. A. Y. C. (1963). An Empirical Test of Revealed Preference Theory. Econometrica. 31: 646-664.

Koo. A. Y. C. (1971). Revealed Preference: A Structural Analysis. Econometrica. 39: 89-97.

Moschini, G., D. Moro and Richard D. Green (1994). Maintaining and Testing Separability in Demand Systems”, American Journal of Agricultural Economics. 76(1): 61-73.

Varian, Hal R. (1982). The Nonparametric Approach to Demand Analysis. Econometrica. 50: 945-973.

Varian, Hal R. (1983). Nonparametric Tests of Consumer Behaviour. Review of Economic Studies. 50: 99-110.

Varian, Hal R. (1992). Microeconomic Analysis. Third Edition . New York: W. W. Norton and Company.