An experimental examination into the design of decentralized methods to solve the assignment problem with and without money

Summary An experimental examination of the assignment problem, matching individuals to positions or slots, is conducted in which various assignment mechanisms are analyzed. Generalized versions of both the Vickrey and English auctions are designed to solve the assignment problem along with oridinal ranking mechanisms (serial dictator and funny money system). The generalized auctions result in efficient allocations. In contrast, the ordinal ranking mechanisms, which require no monetary transfers, are significantly less efficient in their assignments. However, the efficient allocations obtained from the competitive bidding processes are at the expense of consumers' surplus since demanders retain significantly larger profits with the ordinal ranking mechanisms.     

The Education of a Technology Policy Analyst—to Process Management

Technology policy analysis emphasizes logical resolution of issues based on conceptual models, data, and analyses, but this often is not enough to accomplish anything. Policy-makers routinely disregard policy analyses, even when well done, timely, and pertinent to the issues at hand. Process management complements policy analysis by directing attention to the interactions through which disparate interests reconcile their differences to initiate viable action. We pose five questions that constitute a situational analysis decision tree. Based on answers to those questions, we distinguish five action approaches (including 'do nothing') that can enhance the utilization of technology analyses. These approaches demand skills, not always paramount in policy analysts, to run processes that engage stakeholders. We illustrate how process management can enhance the utilization of technology policy analysis through a hypothetical case.     

Risk factor and industry effects in the cross-country comovement of momentum returns

This paper examines the sources of cross-country comovement of momentum returns over the 1975–2004 period. Using data on more than 17,000 individual firms across 100 industries from 40 countries, we document the profitability of country-neutral individual firm, industry, and industry-adjusted return momentum. We show that country-neutral momentum returns are significantly correlated across countries, the correlation is time-varying, and that comovement among industries cannot explain the comovement of country-neutral momentum returns. However, we find that standard risk factor models do explain a significant portion of the cross-country comovement of momentum returns, even though they do not explain average momentum returns.     

The influence of voice and explanation on performance in a participative budgeting setting

This paper examines the relationship between the use of a fair budgeting process and subordinate performance. Organizational justice theory is used to define a fair budgeting process as having two components: the subordinate’s involvement in the budgeting process, voice; and the communication of a rationale for the subordinate’s lack of influence over the final budget target the superior sets, explanation. Results indicate significant performance improvements when voice and explanation are combined as compared to voice alone.     

The five competitive forces that shape strategy

In 1979, a young associate professor at Harvard Business School published his first article for HBR, "How Competitive Forces Shape Strategy." In the years that followed, Michael Porter's explication of the five forces that determine the long-run profitability of any industry has shaped a generation of academic research and business practice. In this article, Porter undertakes a thorough reaffirmation and extension of his classic work of strategy formulation, which includes substantial new sections showing how to put the five forces analysis into practice. The five forces govern the profit structure of an industry by determining how the economic value it creates is apportioned. That value may be drained away through the rivalry among existing competitors, of course, but it can also be bargained away through the power of suppliers or the power of customers or be constrained by the threat of new entrants or the threat of substitutes. Strategy can be viewed as building defenses against the competitive forces or as finding a position in an industry where the forces are weaker. Changes in the strength of the forces signal changes in the competitive landscape critical to ongoing strategy formulation. In exploring the implications of the five forces framework, Porter explains why a fast-growing industry is not always a profitable one, how eliminating today's competitors through mergers and acquisitions can reduce an industry's profit potential, how government policies play a role by changing the relative strength of the forces, and how to use the forces to understand complements. He then shows how a company can influence the key forces in its industry to create a more favorable structure for itself or to expand the pie altogether. The five forces reveal why industry profitability is what it is. Only by understanding them can a company incorporate industry conditions into strategy.