Managing Critical Spare Parts within a Buyer–Supplier Dyad: Buyer Preferences for Ownership and Placement

Despite the criticality and expense of spare parts, many firms lack a coherent strategy for ensuring needed supply of spare parts. Moreover, scientific research regarding a comprehensive spare parts strategy is sparse in comparison with direct material. Our research identifies and tests three literature-based, theoretically anchored attributes that influence a buyer's preference for inventory ownership and inventory placement when managing the stock of a critical spare part. Our findings indicate that item specificity and item supply uncertainty are useful in predicting a buyer's preference for managing the inventory of a critical spare part. Furthermore, we find that buyers have (1) a strong preference for consignment-based inventory management approaches, (2) a bias against inventory speculation despite its use in practice and analytical models, and (3) a strong preference for inventory postponement when the level of supply uncertainty is low.     

Efficient moral hazard

This paper presents an infinite-horizon, discounted dynamic programming model of the endogenous opportunity costs of an agent’s effort that is allocated among an endogenous number of principals. An agent allocates effort between evaluating new principals and attending to current principals. Since each principal’s return is not maximized by the agent’s optimal allocation, moral hazard occurs in equilibrium. However, since the agent maximizes the total expected value of all undertaken projects, the agent’s allocation of effort is efficient. If the agent chooses a single principal, then moral hazard does not occur and the allocation is efficient. These results are contrary to the inefficient moral hazard results in bilateral principal-agent (P-A) and common agency (C-A) models.     

Buyer cartels and private enforcement of antitrust policy

Collusion among buyers leads to social welfare losses, which provide the economic rationale for public enforcement of the antitrust law. This conduct also imposes losses on the victimized sellers, which provide the foundation for private enforcement through private damage actions. In this paper, we present a rigorous economic analysis of buyer cartels. This effort includes both full participation and partial conspiracies. We review the antitrust treatment of collusive monopsony in the United States, the European Union, and Asia, offer a measure of antitrust damages, and examine the necessary precision of the damage estimate. We also suggest that the proper use of modern econometrics should allay judicial concerns with speculation.     

Essential aggregation procedures on restricted domains of preferences

The restricted domains of individuals' preferences that permit the construction of Arrow social welfare functions and nonmanipulable voting procedures in which each of n voters has some power are characterized. In this context a domain is the Cartesian product of n sets of strict preference orderings. Variants of this result are obtained under the additional requirement of neutrality and in the case when alternatives are vectors whose ith components affect only the ith voter. Kalai and Muller's analogous result (J. Econ. Theory16 (1977), 457–469) concerning nondictatorial procedures is discussed and proved as a corollary to the main theorem.     

Commercial Farm Workers and the Politics of (Dis)placement in Zimbabwe: Colonialism, Liberation and Democracy

The widespread land occupations of 2000 demonstrate the uneasy fit of commercial farm workers within the politics and development of Zimbabwe. Not only have farm workers borne the most violence at the hands of land occupiers, but their current socio-political situation on predominantly white-owned commercial farms has either been reduced by a nationalist liberation war binary of exploitation/abuse by racist white settlers or totally elided through human rights and democracy discourses anchored in the liberal subject. Based on periodic fieldwork research with commercial farm workers from 1992 to 2000, this paper analyses how farm workers have been represented by the various public actors during the current land occupations and the complex ways some farm workers have responded to these events. The emphasis is on how political actors need to rethink the situation of commercial farm workers if they are to take an active role in the improvement of their living and working lives.     

The environmental crisis in the third world

The destruction of the environment Is not a threat to Industrialised countries alone but also to those strenuously endeavouring after economic progress. Development efforts are often accompanied by disastrous effects for the environment. In view of such gloomy aspects a new development strategy is to be conceived.     

Sales forecast errors for new product projects

It is difficult to avoid errors in sales forecasts for new industrial products, especially when the forecasts are made at the new product screening stage. But if managers are aware that a forecast is likely to be in serious error, they can take steps to deal with the uncertainty. A research project analyzed 185 new product projects to develop four major indicators of sales forecast error. The indicators can be derived for specific firms from typical project screening questions and can be used to alert new product managers to special development problems that may be present.     

Designing long-term disability plans: tax efficiency vs. maximizing wage replacement

The tax treatment of long-term disability plans raises difficult questions for employers and employees, as it necessitates a tradeoff between tax efficiency and maximizing wage replacement for disabled workers. By using simplified case examples, this article illustrates the advantages and disadvantages of different plan design choices. The authors conclude that, in most cases, long-term disability coverage should be mandatory but that employees should be given the choice to decide whether their coverage is taxable.