Competition for goods in buyer-seller networks

Abstract. This paper studies competition in a network and how a network structure determines agents' individual payoffs. It constructs a general model of competition that can serve as a reduced form for specific models. The paper shows how agents' outside options, and hence their shares of surplus, derive from “opportunity paths” connecting them to direct and indirect alternative exchanges. Analyzing these paths, results show how third parties' links affect different agents' bargaining power. Even distant links may have large effects on agents' earnings. These payoff results, and the identification of the paths themselves, should prove useful to further analysis of network structure.     

The Substitution Problem in the Theory of Effective Protection

Input substitution theoretically invalidates the resource flow predictions of effective rates of protection calculated in a partial equilibrium framework. Partial equilibrium effective protection analysis, despite this "substitution problem," has nevertheless quietly settled into the trade economistÕs toolbox. This paper presents a new, transparent review of the substitution problem in effective protection. It finds that partial equilibrium effective protection analysis, although theoretically susceptible to misleading results, is in practice a reasonable estimator of certain short-run general equilibrium effects of protection.     

The spa experience at Radium Hot Springs

This paper examines the spa experience at Radium Hot Springs from the earliest days to the present in an attempt to indicate similarities and differences between Canadian spas and those in the United States and Western Europe. Radium is examined for five time periods under the headings of environment, strategies and institutions, perceptions and attitudes, and technology. Western Canadian spas share many traits with those of the United States, especially the western states, but the emphasis on natural attractions and federal government involvement have caused them to differ from those in Western Europe.     

Metropolitan innovation,firm size,and business survival in a high-tech industry

This paper contributes to the growing body of business survival literature that focuses on regional determinants of the hazard faced by firms. Using parametric survival analysis, we test the effects of regional innovation on exit likelihood in the US computer and electronic product manufacturing during the 1992–2008 period. The novelty of our approach is in conditioning the effects of metropolitan innovation on firm size. Estimation results suggest a negative relationship between metropolitan patenting activity and survival of firms that started with 1–3 employees. This effect decreases if companies grow. Establishments with more than 4 employees at start-up are insensitive to metropolitan innovation, although size of firms that started with 4–9 employees improves their survival chances. These findings indicate that local knowledge spillovers do not translate into lower hazard. The negative relationship indicates either a creative destruction regime or decisions of entrepreneurs to shut down existing ventures in order to pursue other opportunities.     

Toward a better comprehension of Lean metrics for research and product development management

This paper presents a compilation and empirical survey‐based evaluation of the metrics most commonly used by program managers during product development management. This work is part of a bigger project of Massachusetts Institute of Technology (MIT), Project Management Institute (PMI) and International Council on Systems Engineering (INCOSE). Three methodological procedures were applied: systematic literature review, focus‐group discussions, and survey. The survey results indicate the metrics considered to be the most and least useful for managing lean engineering programs, and reveals a shift of interest towards qualitative metrics, especially the ones that address the achievement of stakeholder values, and the absence of useful metrics regarding the lean principles People and Pull.     

Buyer Alliances as Countervailing Power in WIC Infant-Formula Auctions

State agencies in infant-formula procurement auctions receive lower bids when they are in buyer alliances than when they are unallied. The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) uses an auction to procure infant formula. Manufacturers bid on the right to be an agency’s sole supplier by offering a rebate on formula sold through WIC. Agencies frequently join together in buyer alliances. An empirical estimation shows that bids are lower to alliances and that lower prices result because alliances are heterogeneous. Results suggest that when heterogeneity is not controlled, bids decline with alliance size, which has policy implications because Congress recently limited alliance size.     

Portfolio Choice in the Presence of Background Risk

In this paper, we focus on how the presence of background risks – from sources such as labour and entrepreneurial income – influences portfolio allocations. This interaction is explored in a theoretical model that is calibrated using cross-sectional data from a variety of sources. The model is shown to be consistent with some but not all aspects of cross-sectional observations of portfolio holdings. The paper also provides a survey of the extensive theoretical and empirical literature on portfolio choice.