Nikopour, Hesam (2005): Business cycles and policy making in social insurance systems the case of Iran (1962-2004). Unpublished.
Nikopour, Hesam; Shah Habibullah, Muzafar; Schneider, Friedrich and Law, Siong Hook (2009): Foreign Direct Investment and Shadow Economy: A Causality Analysis Using Panel Data. Unpublished.
Nikopour, Hesam (2003): Measuring the size of underground economy in Iran with emphasis on the incentives for evasion of insurance premium payment (1961 – 2001). Unpublished.
Nikopour, Hesam and Shah Habibullah, Muzafar (2010): Shadow Economy and Poverty. Unpublished.
Negin, Vahideh; Abd Rashid, Zakariah and Nikopour, Hesam (2010): The Causal Relationship between Corruption and Poverty: A Panel Data Analysis. Unpublished.
Nikopour, Hesam; Shah Habibullah, Muzafar and Schneider, Friedrich (2008): The shadow economy Kuznets’s curve panel data analysis. Unpublished.