Optimal Farm-to-Market Transportation and Storage of Certain Agriculture Commodities: Bogota,Colombia ∗

Decision rules for the make-buy decision most often assume the form of single-item, incremental cost rules which, for application, require decisions to be made for each item in isolation from all others. While it has been recognized that such decision rules may be non-optimal in situations where equipment capacity limits exist, the literature has not considered other cases where non-optimality arises. The purpose of this paper is to use linear programming as a framework for evaluating the optimality of single-item, incremental cost rules. The major conclusion of this paper is that the presence of any type of binding constraint in the planning problem, regardless of its origin, renders a single-item decision rule potentially non-optimal. A set of optimal screening decision rules is developed to be used in conjunction with a linear programming model for make-buy decisions in cases where such binding constraints exist.     

An Exploration of Older Men's Social Lives and Well-Being in the Context of a Coffee Group

Recreation professionals continually strive to serve a host of diverse program constituents, while leisure researchers attempt to uncover barriers to leisure participation. Much of the barriers or constraints research has come from the perspective of program participants. This study identified, from the perspectives and experiences of 18 recreation professionals, the issues and barriers that they perceive inhibit recreation program access and availability to diverse constituents, particularly ethnic minority populations. Co-cultural theory, which integrates the concepts of muted group theory and standpoint theory, was utilized as the study's theoretical framework. In-depth interviews were utilized. Five primary barriers were identified that related to the changing faces of the community, the changing faces of management and staff, deferred program responsibility, language barriers, and negative attitudes and stereotypes held by some management and staff. This article demonstrates how these barriers impact leisure participation for disenfranchised groups. The findings suggest that recreation agencies, often unwittingly or unknowingly, foster organizational barriers that inhibit the perceived program accessibility or attractiveness to ethnic minorities. Implications for research and professional practice are explored.     

The global markets of renewable energy sources and the national interests of Russia

The current state and the prospects of the use of renewable energy sources (RES) in the world, their total and technical potential and fields of application, and their advantages and disadvantages in comparison with fossil kinds of fuel are considered. Special attention is given to nonconventional RES. The reasons why Russia is lagging behind in the use of these sources are analyzed.     

The Unintended Consequences of High Expectations and Pressure on New CEOs

We provide empirical tests of a general version of targeting theory that greater scrutiny could lead to executive abuses. Our results show that new CEOs under higher expectations or pressure are more likely to report meeting analyst forecasts; however, this apparent superior performance dissipates after excluding firms having characteristics synonymous with earnings manipulation. We find evidence that new CEOs under greater pressure are considerably more likely to engage in manipulation while the link between expectations and manipulation is much weaker. The results are strongest for new CEOs whose firms report meeting forecasts and do not “walk down” earnings estimates.     

Exploring talent management in India: The neglected role of intrinsic rewards

The challenge of global talent management is critical to firm success. Even with the global economic slowdown of 2008 and 2009, there are continuing challenges in attracting, managing, and retaining talent, especially in the developing regions of the world where economic activity has outpaced the availability of skilled employees. To examine this situation, we develop and test a model of talent management across 28 Indian firms involving 4811 professional-level employees. The intrinsic rewards experienced are a critical element in employee retention, satisfaction with the organization, and career success. We explored four antecedents of intrinsic rewards: the social responsibility of the employer, pride in the organization, manager support, and performance management (PM). We found support for the importance of intrinsic rewards as a mediating variable, as well as for the moderating role of certain hygiene factors. Our research suggests multinational, international, and national employers may have non-pecuniary mechanisms to promote retention and employee satisfaction, even in challenging labor market environments. We conclude by proposing implications for research and global HRM practices.     

Value Orientations, Income and Displacement Effects, and Voluntary Contributions

Identifying the value orientations of subjects participating in market or non-market decisions by having them participate in a ring game may be helpful in understanding the behaviour of these subjects. This experiment presents the results of changes in the centre and the radius of a value orientations ring in an attempt to discover if the measured value orientations exhibit income or displacement effects. Neither significant income effects nor displacement effects are identified. An external validity check with a voluntary contribution game provides evidence that value orientations from rings centred around the origin of the decision-space explain significant portions of voluntary contributions while value orientations from displaced rings do not.     

Consequences of ambivalence on satisfaction and loyalty

The key objective of this study was to understand the consequences of subjective ambivalence on customer satisfaction, loyalty, and the satisfaction–loyalty relationship. The conceptual and theoretical discussions were derived largely from recent research in social psychology and integrated with marketing literature on satisfaction and loyalty. Given that product evaluations are typically positive and extreme, these findings indicate a negative relationship between ambivalence and satisfaction. Even though a great deal of the variance in ambivalence is shared with satisfaction, ambivalence did prove to have an independent and direct effect on loyalty. Ambivalent consumers are not only less loyal because they are less satisfied, but for other reasons, as well. Ambivalence was not found to moderate the satisfaction–loyalty relationship. The results of the study underscore the importance of taking ambivalence into consideration when measuring satisfaction and modeling satisfaction–loyalty relationships. © 2005 Wiley Periodicals, Inc.     

Design limits and dynamic policy analysis

This paper characterizes the frequency domain properties of feedback control rules in linear systems in order to better understand how different policies affect outcomes frequency by frequency. We are especially concerned in understanding how reductions of variance at some frequencies induce increases in variance at others. Tradeoffs of this type are known in the control literature as design limits. Design limits are important in understanding the full range of effects of macroeconomic stabilization policies. We extend existing results to account for discrete time bivariate systems with rational expectations. Application is made to the evaluation of monetary policy rules.