Spillover Effect Konflik Rusia-Ukraina dalam Keamanan Ekonomi

Weidenmier, M. D. (2002). "Turning Points in the U.S. Civil War: Views from the Grayback Market." Dalam Southern Economic Journal, 68(4): 875--890

Willard, K. L., Guinnane, T., dan Rosen, H. S. (1996). "Turning Points in the Civil War: Views from the Greenback Market." Dalam American Economic Review, 86(4): 1001--1018

Xu, Z., dan Li, H. (2008). "Political Freedom, Economic Freedom, and Income Convergence: Do Stages of Economic Development Matter?" Dalam Public Choice, 135 (3--4): 183--205