Random Walks and Market Efficiency Tests of Latin American Emerging Equity Markets: A Revisit

The few existing studies on equity price dynamics and market efficiency for Latin American emerging equity markets show conflicting results. This study uses multiple varianceratio and auto-regressive fractionally integrated moving-average tests and new data (U.S. dollar-based national equity indices for the 1987–1997 period) to clarify these results. Documented evidence shows that equity prices in major Latin American emerging equity markets — Argentina, Brazil, Chile and Mexico—follow a random walk, and that they are, generally, weak-form efficient. In sum, therefore, the evidence suggests that international investors in these markets cannot use historical information to design systematically profitable trading schemes because future long-term returns are not dependent on past returns.     

Why Manufacture Offshore? An Empirical Analysis of Valuation Effects

In this study, announcements by U.S. firms of offshore joint venture manufacturing during the 1980s are used to provide more comprehensive evidence than past studies on the wealth effects of offshore joint ventures. Evidence shows that the target country's level of economic development and political stability, currency strength of the originating country (U.S. in this study) relative to that of the target country, U.S. firm's mode of entry, and the relative value of the U.S. firm's investment in the joint venture affect the wealth of U.S. firms which engage in offshore joint ventures. The target country's level of economic development, its political stability, and the currency strength of the originating country relative to the target country are shown to be the dominant economic factors. Of particular importance, evidence indicates that the target country's level of economic development is a more important determinant of excess returns than is its political stability.     

Debt markets and corporate debt structure in an emerging market: The South African example

This is a first attempt at gauging the effects of corporate public debt issuance on the debt structure, risk profile and valuation of firms in an emerging market. We find that financial services firms, along with government institutions, are important early supporters of an organized public debt market. Firms in this market use equity, public debt and private debt funds simultaneously as need be. Consistent with predictions of the corporate debt structure literature, public debt-issuing firms are larger, older, more profitable, and less informational opaque than non-public debt-issuing firms. Moreover, public debt-issuing firms experience significant reductions in both overall and systematic risks, and incur lower cost of capital following issuance than non-public debt issuers. These and other findings of the study suggest deepening national debt markets can be a fruitful financial market development exercise for emerging markets.     

Random Walks and Market Efficiency Tests: Evidence from Emerging Equity Markets

We use the multiple variance-ratio test of Chow and Denning (1993) to examine the stochastic properties of local currency- and US dollar-based equity returns in 15 emerging capital markets. The technique is based on the Studentized Maximum Modulus distribution and provides a multiple statistical comparison of variance-ratios, with control of the joint-test's size. We find that the random walk model is consistent with the dynamics of returns in most of the emerging markets analyzed, which contrasts many random walk test results documented with the use of single variance-ratio techniques. Further, a runs test suggests that most of the emerging markets are weak-form efficient. Overall, our results suggest that investors are unlikely to make systematic nonzero profit by using past information in many of the examined markets, thus, investors should predicate their investment strategies on the assumption of random walks. Additionally, our results suggest exchange rate matters in returns' dynamics determination for some of the emerging equity markets we analyzed.     

External shocks and persistence of external debt in open vulnerable economies: The case of Africa

We examine the extent to which two external shocks, the world interest rate shock and the commodity price shock, lead to external debt accumulation in Africa. We begin by estimating a dynamic stochastic general equilibrium model of external debt burden, and solve the linear equations using the quadratic method of undetermined coefficients. Consequently, we run simulations of 50 time periods. Our results show that both world commodity price and world interest rate shocks impact external debt accumulation in the majority of our sample African countries. Interestingly, world commodity price shocks lead to an increase in external debt while world interest rate shocks appear to discourage accumulation of external debt.     

Credits and non-interest rate determinants of loan demand: a Spanish case study

This article uses bivariate probit analysis to model the potential relationship between the condition of being credit-unconstrained and holding loans as well as to ascertain determinants of a household being credit-unconstrained and likely holding consumer and real-estate loans. It documents that family size, education, permanent and transitory incomes, among others, affect Spanish households’ desire and capacity to hold loans. Furthermore, these factors were found to affect demands for real-estate and consumer loans differently. In general, the above and other results from this research provide insights that would interest credit consumers, credit suppliers, and policy makers in Spain.     

The demand for housing in Spain: an endogenous switching regression analysis

Housing demand in Spain has been studied by using data disaggregated into primary and secondary housing demands. It is found that demand for both types of housing area, indeed, related and that they are both considered necessities; thus, suggesting that their consumption ought to be modelled as a joint decision. Moreover, it is found that traditional determinants of housing demand affect primary and secondary home demands differently. These differences are attributable to the following economic rationales: need for asset holdings diversifications, relative high cost of home ownership versus rental in choice locations, and differences in land demand intensity across regions. In sum, the findings suggest that policy makers in Spain, contrary to popular beliefs, must consider secondary homes an integral part of households' accommodation need.     

How do natural resource endowment and institutional quality influence the nexus between external indebtedness and welfare in Africa?

Resource-rich African countries are often saddled with high external indebtedness. Yet, their management of resource endowment, a logical source of debt repayment, also remains a challenge, alongside their characteristic weak institutions. We investigate the relationship between external indebtedness and welfare whilst considering the pervasive influence of both natural resource rents and the quality of institutions. Using a two-stage analysis, we find that the quality of institutions, mineral- and oil-resource rents negatively affect indebtedness, while rents of aggregated natural resources, which include agricultural commodities, increase indebtedness. In the second stage, we find that welfare is enhanced by the quality of institutions, mineral- and oil-resource rents. These sets of results are interestingly conditional on the degree of resource endowment and the income level of countries, alongside the interesting effects of external indebtedness on welfare, both of which, importantly, nuance past results on the “resource curse”. Furthermore, the proxy for welfare matters: the human development index proxy reflects more the theoretical expectations of unsustainable indebtedness on welfare, than does the GDP per capita alternative. These and other results of our paper, which hold useful policy guides for African countries, are robust to alternative estimation techniques and other checks.     

Foreign exchange risk pricing and equity market segmentation in Africa

This work is the first to investigate simultaneously the occurrence of unconditional currency risk pricing and equity market segmentation in Africa’s major stock markets. The multi-factor asset pricing theory provides the theoretical framework for our model. We find strong evidence suggesting that Africa’s equity markets are partially segmented. However, we find insufficient evidence to reject the hypothesis that foreign exchange risk is not unconditionally priced in Africa’s stock markets. This result is robust to alternative foreign exchange rate-adjusted return measures. These findings suggest that international investors can diversify into Africa’s equity markets without worrying about unconditional risks associated with foreign exchange rate fluctuations.     

Costs, valuation, and long-term operating effects of global strategic alliances

Using global product design and development as an example of global strategic alliance, I find that successful global strategic competition is still largely a variable cost reduction game as opposed to the recently touted fixed cost amortization game. Further, the firm's cost efficiency is enhanced when its global production initiative is characterized by a high degree of strategic alliances. Importantly, I find that global strategic alliances have both valuation effects and long-term operating effects, and that both effects are positive functions of the degree of strategic alliances. After controlling for pertinent explanatory factors such as competitive strategy posture, industry concentration, geographic spread of operation, product-type, and information technology infrastructure of firms, I find that variable cost and production efficiencies remain significant determinants of the valuation effects of global business alliances. Overall, results in this study suggest partnering firms should consider the relative efficiencies of inputs and production technology as effective ways of leveraging the benefits of global strategic alliances.