Cross‐hedging and forward‐contract pricing of electricity in the Pacific Northwest

This paper develops a linear regression model for using actively traded NYMEX natural gas futures as a cross‐hedge against electricity spot‐price risk in the Pacific Northwest and for pricing the forward contracts in the presence of temperature and hydro risks. Our approach comports with reality and provides power purchasers with an effective instrument through which they can hedge their electricity bets through natural gas futures. It also demonstrates the sharp month‐to‐month variations in the natural gas futures' optimal hedge ratios and hedge effectiveness. Finally, it finds significant risk premiums in the Pacific Northwest forward prices, supporting the hypothesis that forward‐contract buyers are relatively more risk‐averse than sellers. Copyright © 2011 John Wiley & Sons, Ltd.     

Transformational leadership and job involvement in the Middle East: the moderating role of individually held cultural values

This study examines whether individually held cultural values moderate the relationship between transformational leadership behavior of supervisors and the job involvement of subordinates in the Middle Eastern organizational context. Hierarchical regression analysis was used to analyze survey data from 229 employees of 10 organizations in the United Arab Emirates. In line with the findings of studies in Western countries, transformational leadership was found to influence job involvement positively. In addition, the cultural value orientations of individuals were found to moderate this relationship. Collectivism positively influenced the relationship between transformational leadership and job involvement, whereas uncertainty avoidance had a negative effect. These findings provide an insight into how transformational leadership may be used to motivate culturally diverse groups of employees within the Middle East. To enhance job involvement, organizations need to realize that the attitudinal response of subordinates to transformational leadership can depend on their cultural values. This has significant implications regarding the training and effective deployment of transformational leaders within Middle Eastern organizations.     

Temperance and economic assumptions

The preceding arguments illustrate the inability to adeguately account for the notion of temperance through mainstream contemporary economics. They also bring to light additional anomalies concerning other intangible virtues, e.g., truth, beauty, and knowledge. However, the problems associated with discounting such concepts do not negate the importance of material concerns. Just as people must crawl before they walk, so must they be able to eat before they can think. Before human beings attempt to exercise virtuous qualities in their daily lives, they must first satisfy some level of the basic needs for survival. Without realizing this necessary condition, the search for virtues, particularly temperance, is meaningless.     

On Professor Kohn and Expected Utility: Correction and Clarification

As a result of an oversight and narrow assumption, Kohn and Hollenhorst (1988) Derive an equation that does not hold in general and that leads to some erroneous Inferences when relied upon in Kohn (1999). The purpose of this note is to identify And clarify the problem and its source, and to draw the appropriate inferences. [D80, Q25]     

Determinants of Student Attitudes toward Team Exams

Abstract

We examine how student attitudes toward their group, learning method, and perceived development of professional skills are initially shaped and subsequently evolve through multiple uses of team exams. Using a Tobit regression model to analyse a sequence of 10 team quizzes given in a graduate-level tax accounting course, we show that there is an anchoring effect, in that in later rounds satisfaction on all dimensions rests on the foundation laid in the initial round. Subsequently, however, self-perceptions and the perception of others may influence satisfaction on a particular dimension. We also find that the satisfaction with one's group tends to increase when students make more correct switches but decreases when there is greater disagreement among the group. Furthermore, satisfaction with team exams tends to lessen, and to an increasing extent over time, as the number of errors a student has committed on the most recent quiz increases.     

Ethnic conflict and economic disparity: Serbians and Albanians in Kosovo

Using the Living Standards Measurement Study (LSMS) household survey from post-conflict Kosovo, we investigate the comparative economic well-being of Serbs and Albanians. An Oaxaca decomposition shows Serb households are both better endowed with income generating characteristics, such as education, and receive higher returns to these characteristics than Albanian households. Despite these advantages, Serb households have lower living standards, on average, than Albanian households. Most of the difference in living standards between Serb and Albanian households is due to unobserved non-economic factors. This result has serious implications for the political economy of policymaking in post-conflict Kosovo. Journal of Comparative Economics 34 (4) (2006) 754–773.     

The Strategy/Structure Debate: An Examination of the Performance Implications

The relative importance of strategy and structure lies at the heart of the strategic management field, yet little is known about the associated performance implications of such changes. The purpose of this study was to investigate the financial performance impact of strategy and structure changes. We conducted an examination of 259 firms over a 36-year period using a quasi-experimental design. No significant change–performance relationships were found for tandem changes (i.e. when both strategy and structure were changed). But, we found that singular structure changes were associated with the highest performance. This finding was consistent with the theory: though strategy is important, proper deployment of firm uniqueness is paramount to performance enhancement.     

Do Riskier Borrowers Borrow More?

Conventional wisdom in the mortgage industry holds that loan-to-value (LTV) ratios are positively correlated with mortgage default rates. However, not all empirical studies of mortgage loan performance support this view. This paper offers a theoretical signaling model of why the correlation between LTV ratios and default risk is contingent upon the default costs of the borrower. Specifically, the model proposes that when default costs are high there exists a separating equilibrium in which risky borrowers will self-select into lower LTV loans to reduce the probability of facing a costly default, while safe borrowers will self-select into higher LTV loans as a signal of their enhanced creditworthiness. This adverse selection process gives rise to the possibility of higher default probabilities for lower LTV loans. Conversely, when default costs are low the conventional result, in which risky borrowers select higher LTV loans than safe borrowers, is obtained. Empirical results, based on a sample of 859 single-family residential mortgage loans drawn from the portfolio of a national mortgage lender, are consistent with the separating equilibria predicted by the model.     

Remittances and output in Bangladesh: an ARDL bounds testing approach to cointegration

Although the relationship between remittances and output is still inconclusive in literature, most studies find that remittances have a positive effect on output in the long run. Contrary to this conventional direction of causality from remittances to output, our study finds that output alone determined long-run movements in remittances in a positive direction in the Bangladesh economy over the last 35 years from 1976 to 2010. We use the autoregressive distributive lag (ARDL) bounds testing approach to cointegration to explore this long-run relationship. Surprisingly, remittances do not appear to be a long-run forcing variable to the explanation of Bangladesh’s output over the same period. While examining the channels of this output–remittance mechanism remains an area of research for the future, we hypothesize that the rise in remittances in response to increased income occurs through higher import demand and greater investment opportunities. This finding implies that Bangladeshi policymakers can influence remittances through national output in the long run.