Economic analysis of the impact of adopting herd health control programs on smallholder dairy farms in Central Thailand

The economic impact of adopting herd health programs for mastitis and reproduction by small-scale dairy producers of Central Thailand was assessed using a policy analysis matrix (PAM). Following a reduction in the incidence of bovine disease on adopter farms, an increase in private net profits is observed. More importantly the social costs of supporting dairy farmers is reduced; the PAM effective protection coefficient was reduced by 35% for mastitis program adopters and by 44% for reproductive program adopters, indicating improved social efficiency of dairy policy. Other indicators of efficiency and policy implications are discussed.     

Moses—Henry George's Inspiration

Abstract . Henry George delivered his famous “Moses” lecture in 1878, just one year prior to the publication of his masterwork. Progress and Poverty. The many parallels in the thinking of both George and Moses suggest that George may have been greatly inspired by Moses. George appreciated Moses’concern with improving this world rather than the hereafter. Moses, like George, advocated a minimum role for government. Moses proposed a thoroughly equitable distribution of the land which would generate fair taxes and avoid the exploitation so denounced by George. Land accumulation by the few would be prevented by requiring the return of ownership to the original owners every fifty years. George, the humanitarian, is also sympathetic with Mosaic reforms restoring human dignity such as the cancellation of oppressive debt every seventh year, and relief from drudgery every sabbath day and sabbatical year.     

Transboundary Environmental Problems with Mobile but Heterogeneous Populations

Most of the literature on transboundaryenvironmental problems treats population ineach country or region as constant, ignoringpopulation mobility. We showed previously thatif there is perfect population mobility betweenregions, and populations are homogeneous, asocially efficient outcome can be supported asa Nash equilibrium of the game of uncoordinatedpolicy setting, even without any internationalenvironmental agreement. In the present paperwe introduce heterogeneous population, and showthat when people differ, a non-cooperativeoutcome is generally inefficient. We alsodemonstrate that for a particular set ofobjective functions for the regionalgovernments, there is an equilibrium of thegame of uncoordinated policy setting that isefficient. Finally, we give an example wherethe decentralized outcome is efficient whenthere is no population mobility, butinefficient when there is population mobility.     

Corporate stakeholders,corporate valuation and ESG

In addition to explicit contracts, corporations issue their stakeholders implicit claims, including fair treatment of employees and the promise of continuing service to customers. Corporate value is created by selling these implicit claims for more than it costs to honour them. Recently, a new class of non-investor stakeholders, related to environmental, social and governance (ESG) issues, has arisen. Although many ESG advocates stress their role in creating shareholder value, they do not explain how this value creation occurs. This paper shows that implicit claims provide a critical link that ties non-investor stakeholders and ESG to shareholder value, both its creation and its possible destruction.     

Factors affecting the acquisition and transfer of novel attribute relationships to new product categories

This article investigates two factors posited to affect consumers' ability to learn a novel attribute relationship (e.g., “no pesticides → USDA organic symbol”) and apply this recently acquired knowledge when making judgments in a new product category. The first factor concerns the nature of the attribute encoding process and, in particular, whether it allows for comparison of examples. The second factor focuses on the relationship between the learning and transfer domains, and examines the influence of perceptual similarity (manipulated two ways: similarity in the elements comprising the attribute relationships, and similarity between the base and target domains) on the transfer process. Study 1 revealed a significant improvement in inter‐domain transfer when a relationship was learned in a multiple‐domain/multiple‐attribute learning environment over a single‐domain/single‐attribute environment. When attribute and domain diversity were examined separately (Study 2), it was found that attribute, but not domain, diversity produced the greatest improvements in transfer. Study 3 showed that the benefits of adding a perceptual similarity cue were most apparent when the transfer conditions were neither too easy (within domain and within attribute) nor too difficult (inter‐domain and inter‐attribute). © 2009 Wiley Periodicals, Inc.     

Financial prediction with constrained tail risk

A new class of asymmetric loss functions derived from the least absolute deviations or least squares loss with a constraint on the mean of one tail of the residual error distribution, is introduced for analyzing financial data. Motivated by risk management principles, the primary intent is to provide “cautious” forecasts under uncertainty. The net effect on fitted models is to shape the residuals so that on average only a prespecified proportion of predictions tend to fall above or below a desired threshold. The loss functions are reformulated as objective functions in the context of parameter estimation for linear regression models, and it is demonstrated how optimization can be implemented via linear programming. The method is a competitor of quantile regression, but is more flexible and broader in scope. An application is illustrated on prediction of NDX and SPX index returns data, while controlling the magnitude of a fraction of worst losses.     

Mind over matter? The inability to counteract contrast effects despite conscious effort

The nature of contrast effects is equivocal. Prior research has conceptualized contrast effects as emerging from an effortful attempt to counteract the natural tendency to assimilate to relevant contextual information. Others have suggested that contrast effects can be the natural, default outcome if the context stimulus is extreme relative to the target. Even with this latter perspective, however, individuals are believed to be sufficiently aware of the contextual influence so as to be able to counteract it if so motivated. These conceptualizations call into question the extent to which contrast effects can occur automatically, without awareness. By using an opposition paradigm that pits automatic influences against conscious influences, unequivocal evidence is provided that contrast effects can occur automatically; contrast effects emerged even when the contextual information was not accessible from memory and study participants were explicitly trying to avoid the influence of contextual information. Explanations are proffered as to why evaluations driven by automatic contrast effects could be inconsistent with preference judgments. © 2005 Wiley Periodicals, Inc.