We develop an international asset pricing model to measure the impact of investability constraints on asset pricing. For a sample of 18 emerging markets, we use Standard & Poor’s investable weight factor (IWF) to show a 26.33% reduction in the cost of equity capital when non-investable firms become partially investable, with a further 12.51% reduction when partially investable firms become unrestricted. We demonstrate the generality and usefulness of the IWF by examining stocks with global/American depositary receipts and foreign institutional holdings as alternate investability proxies. Our results provide strong evidence of the economic benefits of market liberalization policies.

International asset pricing models suggest that barriers to portfolio flows and availability of market substitutes affect the degree and time variation of world market integration. We use GARCH-in-mean methodology to assess the evolution in market integration for eight emerging markets over the period 1977–2000. Our results suggest that while local risk is still a relevant factor in explaining time variation of emerging market returns, none of the countries appear to be completely segmented. We find that there are substantial crossmarket differences in the degree of integration. The evolution toward more integrated financial markets is apparent although at times we do observe reversals. In addition, we provide clear evidence on the impropriety of directly using correlations of market-wide index returns as a measure of market integration. Finally, financial market development and financial liberalization policies play important roles in integrating emerging markets.

This paper conducts empirical tests in a conditional setting for 10 developed and 12 emerging markets to determine whether emerging market currency risk is priced and if it spills over into developed market assets. Our empirical model is based on real exchange rate measures and it allows currency risk to compete with broader economic and political risks. We find that emerging market currency risk is priced separately from other local risk factors and that it represents a significant component of equity returns in both developed and emerging markets. We also find that the spillover impact is heightened during emerging market crisis episodes and affects the expected compensation for global risks.

Vihang R. Errunza, Darius P. Miller, Market Segmentation and the Cost of Capital in International Equity Markets, The Journal of Financial and Quantitative Analysis, Vol. 35, No. 4 (Dec., 2000), pp. 577-600

A number of studies have compared the investment risk of various industries and of various individual corporations in developed countries (DCs). The purpose of this paper is to compare investment risk in DCs with less developed countries (LDCs). The variance of returns to investment in common stocks provides a natural measure of investment risk and will be used in this study. Studies in LDCs include work of Levy and Sarnat [12], [13]. Errunza [3], [4], and Lessard [11]. Levy and Sarnat and Errunza found low economy-wide investment risk on an average for LDCs (relative to DCs), with stock indices being used as surrogates for economy-wide risk. These results are not unambiguous, however, because there are probable difficulties due to infrequent trading and averaging in the broad market indices used in the above studies. Hence, we use a sample of the largest corporations that suffer little, if at all, from thin trading and/or averaging.