7White, H. 1980. A heteroskedasticity- consistent covariance matrix estimator and a direct test for heteroskedasticity. Econometrica 40, 817 -838.
8Amir, E. , Harris, T. S. , Vemuti, E. K. 1993. A comparison of the value - relevance of US versus non - US - GAAP accounting measures using Form 20 -F reconciliation. Journal of Accounting Research Supplement 31, 230 -264.
9Ashbaugh, H. , 1997. Non -US firm'saccounting standard choices in accessing foreign capital markets. Working paper, University of Iowa.
10Ashbaugh, H. , Pincus, M. 1998. International Accounting Standards, Diversity in Accounting Standards, and the Predictability of Earnings. Working paper, University of Iowa.
