Higher co-moments and asset pricing on London Stock Exchange

This study examines the asset pricing implications of preferences over the higher moments of returns’ distributions. We show that in a market populated by risk-averse, prudent and temperate investors, firms whose returns exhibit negative coskewness or positive cokurtosis should yield higher premia relative to counterpart firms with positive coskewness and negative cokurtosis respectively. These theoretical predictions are empirically tested using a comprehensive dataset of shares listed on the London Stock Exchange during the period 1986-2008. Our empirical results confirm that coskewness and cokurtosis premia are genuinely priced in the UK market, over and above what covariance risk, size, value and momentum factors can explain. We also show that a theoretically motivated, higher co-moment asset pricing model has significant explanatory ability over the cross-section of coskewness and cokurtosis portfolio returns.     

COALITION FORMATION WITH LEARNING FROM PREDECESSORS: A CASE OF DYNAMIC POSITIVE EXTERNALITY

We consider a simple multi‐period model where the entry cost varies with respect to the number of firms that have entered previously. In the non‐cooperative outcome, there is clustered entry among the firms in the last period; hence, the full potential of learning is not expropriated. When firms are allowed to form coalitions, the non‐cooperative outcome is dominated; thus, there is a gain in efficiency. We also find that full efficiency is obtained when a grand coalition is formed. The implications of policies on coalitions as well as on individual firms are also discussed.     

Collective voluntary agreements to eliminate polluting products

Recently some industries have collectively agreed not to produce models of a product that do not meet an environmental standard. We present a model to examine a voluntary agreement of this type. The conditions under which an agreement is profitable include the stringency of the agreement, the relative performance of the greener product, industry size and the number of participants. While an agreement can be profitable for all firms (both participants and non-participants), i.e., all firms can be better off with the agreement than without it, nonetheless, a free-rider incentive exists. Thus, despite the potential for a profitable agreement, absent an effective enforcement mechanism, the agreement is not part of a Nash equilibrium. We suggest that this provides a possible explanation for the initial success of the European washing machines agreement, as well as a recent move by the industry to abandon the voluntary approaches and call for mandatory standards.     

Seasonal models of peak electric load demand

Energy consumption in a pilgrim city belonging to a Gulf Cooperation Council (GCC) country exhibits strong seasonal pattern due to higher demand in summer season and additional load during the pilgrimage months. The pilgrimage month's timing is not fixed in the Gregorian calendar. The event varies according to the lunar calendar called the Hegira calendar, which lags behind the former by approximately 14 days in a year. Ten seasonal demand models are developed to model energy estimate for a GCC pilgrimage city. Among the long-range forecast models, three trigonometric models, a multiplicative model, and a multivariate model using categorical variables are considered. Further, a composite nonlinear model whose coefficients are nonlinear is suggested. This model combines the seasonality extracted from a multivariate regression model and a model that represents the peak electric load pattern. Adopting least square fit of a chi-square error function expanded by parabolic expansion, the parameters of the nonlinear model are identified. Moreover, smoothing-based techniques, such as moving average, double exponential smoothing, Winter's, and a multiplicative seasonal model, are suggested. The peak electric load model on lunar and solar calendars is closely related, and the deference in fitting error can be attributed to the magnitude of data. Computational results and statistical tests are presented to analyze the models. It is observed that the multiplicative model performs better to predict the peak electric load demand.     

Economic impact studies of Beijing 2008 Olympic Games

The paper provides an ex-ante analysis of the financial burden and potential economic benefit of the Beijing 2008 Olympic Games. Owing to the lack of uniform financial data, cost and benefits analysis is not possible, so we have adopted a multi-criteria analysis （MCA） as a part of an Olympic Games impact study, to asses the possible economic impact of hosting the Olympics in Beijing. There are many aspects of a country that may change as a result of hosting the Olympic Games. Studies on the impact of previous Olympic Games have indicated that inward investment has been attracted by preparations for the Olympics which has increased the host cities global profile and by the legacy of additional facilities afterward. Beijing is already an establish city and prime destination for inward investment in China and Asia. Hosting the Olympics in 2008 might be expected to give rise to tangible positive effects on the over all level of economic activities.     

Priority setting for research on aquatic resources: an application of modified economic surplus analysis to natural resource systems

In contrast to research on farming systems, research on natural resource systems seldom applies rigorous priority setting techniques, mainly due to difficulties associated with estimating research impact ex ante for such systems. This article presents a replicable approach to priority setting that addresses these difficulties. Assessment is based on multiple criteria, combining economic surplus analysis with subjective scoring, based on information drawn from a cross‐country survey of expert opinion. The approach is applied to the WorldFish Center, a global agricultural research organization focusing on living aquatic resources, both farmed and wild. The exercise demonstrates the relevance of conventional evaluation techniques to fisheries research based on a practical application of its impact pathways.     

Crowding-out and crowding-in effects of the components of government expenditure

This article examines the effects of disaggregated government expenditure on investment using fixed- and random-effect methods. Using the government budget constraint, the analysis explores the effects of tax- and debt-financed expenditure for the full sample, and for subsamples of developed and developing countries. In general, tax-financed government expenditure crowds out more investment than debt-financed expenditure. Expenditure on social security and welfare reduces investment in all samples while expenditure on transport and communication induces private investment in developing countries.     

EFFECT OF ASSEMBLY COSTS ON OPTIMUM GRAIN ELEVATOR SIZE AND LOCATION

This paper considers simultaneously the effect of assembly costs and economies of scale on optimum size and location of grain elevators. When assembly factors (transportation costs and grain sales density) are included, optimum elevator size may be as little as 25 to 50 per cent of the size when in-plant costs only are considered. These results are important to all parts of Canada's grain industry, but especially relevant in view of the importance currently associated with efficient grain assembly and in view of the significance of farmer cooperatives in Canadian grain assembly and storage.
EFFETS DU COUT DE RASSEMBLEMENT RELATIF A LA GRANDEUR OPTIMUM ET LA SITUATION GEOGRAPHIQUE ďELEVATEUR. - ľétude considère simultanément ľeffet du coût de rassemblement et des économies àľéchelle optimum et ľemplacement, des élévateurs. Quand le cout du transport et la concentration de ventes de graines est inclu, la grandeur optimum des élévateurs peut étre réduit de 25 à 50 p. 100 de la grandeur basé sur le coût ďusine seul Ces résultats ont une importance pour ľindustrie des graines dans tout le Canada mais plus spécialement à cause de ľimportance couramment attachéàľefficacité du rassemblement des graines et la position primordiale des coopératives rurales dans la tâche de rassemblement et de ľentreposage des graines.