Working paper / International monetary fund. WP/08/244 : Do interest groups affect U. S. immigration policy? / G. Facchini, A. M. Mayda, P. Mishra, 2008. - 56 p. - Текст : непосредственный.
Working paper / Intern. monetary fund. WP/07/40 : Do South-South trade agreements increase trade? Commodity-level evidence from COMESA / A. M. Mayda, C. Steinberg, 2007. - 35 p. - Текст : непосредственный.