CANADIAN WHEAT EXPORTS IN THE INTERNATIONAL MARKET: AN EXPLORATORY ECONOMETRIC AND POLICY ANALYSIS

This study attempts to measure with a two-region model some of the key economic relationships for Canadian wheat in the world market. The excess demand function facing Canadian wheat exports was found to be price elastic. Dynamic policy multipliers were derived to calculate the effects on wheat exports and the world price of changes in policy instruments including the initial payment for wheat.
Cette étude a pour but de mesurer, au moyen d'un modèle portant sur deux régions, quelques-uns des principaux rapports économiques entre l'économie canadienne du blé et les marchés mondiaux. La fonction de demande excédentaire des exportations canadiennes de blé s'est vérifiée élastique par rapport au prix. Les effets de changements dans les instruments de la politique agricole, tels que le paiement initial du blé, sur les exportation canadiennes et sur le prix mondial du ble ont eté calcule au moyen de multiplicateurs dynamiques.     

The Trade and Welfare Effects of State Trading in China with Reference to COFCO

The use of state trading to manage imports and exports has been a long‐standing feature of China’s agricultural trade regime. While the use of state trading was modified by China’s accession to the WTO, state trading still dominates for some commodities, even though there have been recent attempts to diminish its importance. In this paper, we analyse the potential trade distorting effect of COFCO on market access and export competition by drawing on some recent research on the impact of STEs on agricultural trade. By using a calibrated model of China’s imports of wheat and exports of maize, we are able to quantify the size of the trade distortions.     

The effects of structural breaks and long memory on currency hedging

Empirical evidence suggests that unconditional variance of exchange rate return series is subject to occasional structural breaks that may induce spurious phenomenon of high persistence and long memory of volatility processes. In this study, we investigate the effects of such breaks on estimated risk-minimizing hedge strategies (ratios) and their performance in currency markets. Using bivariate GARCH (BGARCH) and fractionally integrated GARCH models, we estimate the hedge ratios for six foreign currencies in the full sample with and without controlling for breaks and each subsample of different unconditional variance regimes identified by a modified version of the Inclan C, and Tiao GC (1994) algorithm. Our findings suggest that daily currency risk can be better hedged with currency futures when controlling for unconditional variance breaks in the BGARCH model. © 2009 Wiley Periodicals, Inc. Jrl Fut Mark 30:607–632, 2010     

Ethical beliefs of MIS professionals: The frequency and opportunity for unethical behavior

The frequency and opportunity for unethical behavior by MIS professionals is examined empirically. In addition, the importance of top management's ethical stance, one's sense of social responsibility and the existence of codes of ethics in determining perceptions of the frequency and opportunity for unethical behavior are tested.Results indicate that MIS professionals are perceived as having the opportunity to engage in unethical practices, but that they seldom do so. Additionally, successful MIS professionals are perceived as ethical. Finally, while company codes of ethics were uncommon, top management was seen as supporting high ethical standards. Scott J. Vitell is an Assistant Professor of Marketing at the University of Mississippi. His publications have appeared in the Journal of Macromarketing, the Journal of Business Ethics, Research in Marketing, various national and regional proceedings, and elsewhere. Donald L. Davis is Associate Professor and Director of Management Information Systems Programs in the School of Business at The University of Mississippi. He has published in OMEGA, Journal of Operations Management, Human Systems Management and other journals. His current research interests are in user-system interfaces in DSS, expert systems, and nueral nets.     

Incentive effects and overcrowding in tournaments: An experimental analysis

This study reports experiments that examine outcomes when agents choose between a payment scheme that rewards based on absolute performance (i.e., piece rate) and a scheme that rewards based on relative performance (i.e., a tournament). Holding total payments in the tournament constant, performance is higher when the tournament option is winner-take-all compared to a graduated tournament (i.e., second and third-place performers also receive a payment). Performance is higher in the winner-take all tournaments even among participants that choose the piece-rate option. While there is a modest amount of overcrowding, there are no significant differences in overcrowding across conditions. Entry rates into the tournament and the relative ability of tournament entrants (compared to non-entrants in the same condition) are higher in the graduated tournament condition than the winner-take-all conditions. Consequently, the winner-take-all tournament is more efficient than the graduated tournament (incentive effects are stronger and the overcrowding is about the same), but the graduated tournament provides a more effective mechanism to identify the most capable performer in a talent pool. Electronic Supplementary Material Supplementary material is available in the online version of this article at . JEL Classification D8 · J3 · L2