Corporate Ethical Values and Altruism: The Mediating Role of Career Satisfaction

This study explores the ability of career satisfaction to mediate the relationship between corporate ethical values and altruism. Using a sample of individuals employed in a four-campus, regional health science center, it was determined that individual career satisfaction fully mediated the positive relationship between perceptions of corporate ethical values and self-reported altruism. The findings imply that companies dedicating attention to positive corporate ethical values can enhance employee attitudes and altruistic behaviors, especially when individuals experience a high degree of career satisfaction.     

Weshalb konjunkturprognostiker regelmäßig den wetterbericht studieren sollten

Certainly, economic activity is infl uenced by weather conditions. In short term economic forecast, normal weather fl uctuations over the year are covered by using seasonally adjusted fi gures. However, they are calculated by time series methods and do not take into account specifi c weather conditions such as unusually mild or cold winters. In particular in the fi rst quarter of a year, it is often diffi cult to identify whether short term shifts in economic activity are due to cyclical reasons ore merely refl ect specifi c weather conditions. The paper shows that this uncertainty leads to biased forecast. After mild winters forecasts of GDP and investment in construction tend to be over optimistic whereas they are too pessimistic after atypically cold winters.     

The Bologna process: how student mobility affects multi-cultural skills and educational quality

We analyze the two goals behind the European Bologna process of increasing student mobility: enabling graduates to develop multi-cultural skills and increasing the quality of universities. We isolate three effects: (1) a competition effect that raises quality, (2) a free-rider effect that lowers quality, and (3) a composition effect that influences the relative strengths of the two previous effects. The effects lead to a trade-off between the two goals. Full mobility may be optimal only when externalities are high. In this case, student mobility yields inefficiently high educational quality. For moderate externalities, partial mobility is optimal and yields an inefficiently low quality of education.      

The tactical and strategic value of hedge fund strategies: a cointegration approach

This paper analyzes long-term comovements between hedge fund strategies and traditional asset classes using multivariate cointegration methodology. Since cointegrated assets are tied together over the long run, a portfolio consisting of these assets will have lower long-term volatility. Thus, if the presence of cointegration lowers uncertainty, risk-averse investors should prefer assets that are cointegrated. Long-term (passive) investors can benefit from the knowledge of cointegrating relationships, while the built-in error correction mechanism allows active asset managers to anticipate short-run price movements. The empirical results indicate there is a long-run relationship between specific hedge fund strategies and traditional financial assets. Thus, the benefits of different hedge fund strategies are much less than suggested by correlation analysis and portfolio optimization. However, certain strategies combined with specific stock market segments offer portfolio managers adequate diversification potential, especially in the framework of tactical asset allocation.

Backup strategy for robots’ failures in an automotive assembly system

Automotive assembly lines are often characterized by robots’ failures that may result in stoppages of the lines and manual backup of tasks. The phenomena tend to impair throughput rate and products’ quality. This paper presents a backup strategy in which working robots perform tasks of failed robots. The proposed Mixed-Integer Linear-Programming based approach minimizes the throughput loss by utilizing the robots’ redundancy in the system. Two algorithms are developed to comply with stochastic conditions of a real-world environment. The performance of these algorithms is compared with several heuristics, and the downstream-backup based algorithm is found superior to all other methods.     

CAP Reforms in the 1990s and their Price and Welfare Implications: The Case of Wheat

We use a nonlinear commodity market model to assess, theoretically and empirically, the impacts of recent reforms of the CAP on prices and economic welfare in the EU. The empirical analysis is based on an aggregate structural econometric model of the EU wheat economy and its links to the rest of the world. Instability issues are also investigated. Impacts of CAP reforms on the variance of domestic and world prices are analysed and a Monte Carlo simulation is used to evaluate uncertainty in the model's welfare computations. Recent reforms led to a net welfare gain within the EU during the period 1993–2000. Additional budgetary costs are less than the welfare gains of consumers and producers. Producers gained as lower price support was overcompensated by additional direct payments.     

Regulating Availability with Demand Uncertainty

Abstract. I evaluate a new German regulation that requires retail discounters to guarantee the availability of their products in bargain sales. The regulation is meant to prevent loss leaders. Retailers undermine the regulation's rationale by claiming that rationing is due to demand uncertainty. This paper shows that under demand uncertainty the regulation has ambiguous welfare effects. Effectively, it raises production, which, under imperfect competition, tends to be beneficial. However, the regulation overshoots and decreases welfare if it requires availability for a state of high demand that is relatively unlikely. In this case more sophisticated regulation is required.     

COMMENT ON THE 2010 WINCOTT LECTURE, ‘EUROPE: HOW CAN THINGS GET BETTER?’

The increasing centralisation of government at European Union level is eroding individual freedom. Greater EU regulation of financial markets, as advocated by Charlie McCreevy, represents a further threat to liberty, while the measures advocated would have been ineffective at preventing the current financial crisis.