Existence, uniqueness and determinacy of Arrow–Debreu equilibria in finance models

We characterize the Arrow–Debreu equilibria of a pure exchange one good economy where agents have additively separable utilities. It is then shown that under gross substitution hypotheses on utilities (or if relative risk aversion is smaller than one), the excess utility has gross substitute properties. Uniqueness of equilibria thus follows. It is finally proved that generically equilibria are determinate.     

Education,training and the economy

Report* on an international conference on “Human Capital Investments and Economic Performance”, Santa Barbara, California, November 1993     

The Impact of the Source and Sequence of Information in Primary Equity Offerings

Empirical studies of the announcement effects of equity offerings have generally defined the event date as the earlier of the SEC registration date or the first mention in the Wall Street Journal (WSJ), the implicit assumption being that the two types of announcements are equally informative. This study examines whether the source of the event announcement might influence a study's results and whether subsequent announcements from other sources elicit a market reaction. Specifically, this paper investigates whether Dow Jones News Wire (DJNW) announcements that differ in timing from either of these information events elicit a market response and, more important, whether impacts from the DJNW announcements alter the validity of the widely used methodology. The results of the paper indicate that, for issues that are not mentioned in the WSJ Index, there is a negative and significant return on the registration date. However, no matter whether the registration occurs before or after its mention on the DJNW, the share price reaction is greater from mention on the DJNW than at registration. This finding leads to the conclusion that the DJNW should be used as the event date and that press coverage     

Do core and non-core cash flows from operations persist differentially in predicting future cash flows?

This study investigates the persistence of cash flow components (core and non-core cash flows) using a cash flow prediction model. By extending the Barth, Cram, and Nelson (Account Rev 76(January):27–58, 2001) model, we examine the role of cash flow components in predicting future cash flows beyond that of accrual components. We propose a cash flow prediction model that decomposes cash flows from operations into core and non-core cash flow components that parallel the presentation and format of operating income from the income statement. Consistent with the AICPA and financial analysts’ recommendations, and as predicted, we find that core and non-core cash flows defined in our paper are differentially persistent in predicting future cash flows; and these cash flow components enhance the in-sample predictive ability of cash flow prediction models. We also analyze the association of in-sample prediction errors with earnings, cash flow and accruals variability. We find that disaggregating cash flows improve in-sample prediction, especially for large firms with high cash flows and earnings variability.

Do Compensation Committee Members Perceive Changing CEO Incentive Performance Targets Mid-Cycle to be Fair?

Exploring the construct of social-responsibility orientation across three Asian and two Western societies (Germany, Hong Kong, Japan, South Korea, and the United States), we show evidence that top-level executives in these societies hold fundamentally different beliefs about their responsibilities toward different stakeholders, with concomitant implications for their understanding and enactment of responsible leadership. We further find that these variations are more closely aligned with institutional factors than with cultural variables, suggesting a need to clarify the connection between culture and institutions on the one hand and culture and social-responsibility orientations on the other.     

International entrepreneurship in resource-rich landlocked African countries

Despite the increase in research about international entrepreneurship, relatively little is known about the process in Africa. This is due to the disparity between the actualization of business ventures and global perceptions of African entrepreneurs. As a result of the diversity of countries within the African continent, the nature of international entrepreneurship varies with cultural and historical context. To address this research gap, we discuss how international entrepreneurship in Africa differs to the more studied traditionally North American and European perspective. To do this we develop a number of research propositions for resource-rich landlocked African countries (Botswana, Zambia, and Zimbabwe) that have unique characteristics in terms of how they approach international entrepreneurship. The research propositions suggest that resource-rich landlocked African countries need to focus on informal networks and cultural attributes as a way to differentiate themselves in the international marketplace. Managerial implications and theoretical research suggestions for differentiating resource-rich landlocked African countries from the more resource scarce and coastal countries are stated.     

Determinants and Effects of Cultural Context: A Review,Conceptual Model,and Propositions

Edward Hall's pioneering work on “Silent Languages” of time, space, material possessions, friendship patterns, and agreements and his conceptualization of cultures as low-context and high-context have inspired numerous research studies on international and cross-cultural marketing. Despite these widespread applications, there is no research to date that integrates the theoretical foundations and applications of Hall's work in a single study. In this context, the current research delivers on the following three goals: (a) an extensive literature review of Hall's work on cultural context is done; (b) a conceptual model is developed that depicts the determinants and effects of cultural context; and (c) 12 propositions are developed, contrasting the effect of low- versus high-context cultures on a variety of cultural themes, such as Hofstede's five cultural dimensions, mono-chronic or M-time versus polychronic or P-time orientation, and relationship building etc. International marketing implications of this research and directions for future research are discussed.