Chartering strategies for shipping companies

This paper describes a model which may be used in the evaluation of the relative effectiveness of policies used in the areas of ship chartering and the switching of combined carriers between the dry cargo market and the tanker market. The policies for chartering and market switching are expressed in the form of ‘desired proportions’ of the fleet operating in a particular charter-mode or a particular market. Graphical illustration of this form of expression of policies can be easily understood, so that alternative policies can be designed with relative ease. The effectiveness of a particular form of policy under various freight market conditions can be determined from the model, the use of which is illustrated by its application to the deployment of the fleet of an hypothetical shipping company. It is assumed that the feedback connection between the company's actions and the marketplace is negligible.     

Civil unions in Vermont: political attitudes, religious fundamentalism, and sexual prejudice

In 2000, Vermont passed civil union legislation that granted same-sex couples the same legal rights as traditionally married opposite sex couples. This study examined the influence that sexual prejudice, religious fundamentalism, social dominance orientation, and support for civil unions had on voters' choice for governor in the subsequent election. Results showed that support for civil unions was a primary motivator for many voters in the election, and that sexual prejudice, religious fundamentalism, and social dominance orientation were unique predictors of voters' choices. These results show that prejudice can be a key factor in determining whom voters elect to represent them in government.     

Exchange curves for fixing batch quantities

The problem considered is that of choosing batch quantities to minimize costs, subject to the constraints that neither overall set-up costs nor overall set-up time can be increased beyond certain limits. Theoretical and graphical solutions are obtained for two possible formulations of the problem, and a simple practical procedure is suggested.