Managed care, consolidation among health care providers, and health care: evidence from mammography

We discuss the effects of managed care on the structure of the health care delivery system, focusing on managed-care-induced consolidation among health care providers. We empirically investigate the relationship between HMO market share and mammography providers. We find evidence of consolidation: increases in HMO activity are associated with reductions in the number of mammography providers and with increases in the number of services produced by remaining providers. We also find that increases in HMO market share are associated with reductions in costs for mammography and with increases in waiting times for appointments, but not with worse health outcomes.     

Informal authority in organizations

We assert that decision rights in organizations are not contractible:the boss can always overturn a subordinate's decision, so formalauthority resides only at the top. Although decision rightscannot be formally delegated, they might be informally delegatedthrough self-enforcing relational contracts. We examine thefeasibility of informal authority in two informational environments.We show that different information structures produce differentdecisions not only because different information is broughtto bear in the decision-making process, but also because differentinformation creates different temptations to renege on relationalcontracts. In addition, we explore the implications of formaldelegation achieved through divestitures.     

Apology and Ambiguity: Adolf Berle on Corporate Power

A sociocognitive foundation for transformative agency requires much deeper exploration to adequately understand the causal origins of human interests, preferences, and choices as they shape both the emergence of institutions and the process of institutional change. In the collegial spirit of rapprochement, reminiscent of earlier efforts at “bridge-building,” our central contention is that the new institutional economics of “late” Douglass C. North (2005) North, Douglass C. Understanding the Process of Economic Change. Princeton, NJ: Princeton University Press, 2005.[Crossref] , [Google Scholar] provides such a sociocognitive approach, as well as an important ontological frame for dealing with embedded agency. This agency may afford original institutional economics a complementary meta-theoretical account of how institutions are formed and changed over time.     

Gentrification and Blight: Relationship to Involuntary Displacement

Because homelessness is visible in cities with high levels of gentrification, the media have linked the two phenomena. But the displacement taking place in most American cities is due more to blight than to gentrification. This article examines both sources of displacement and traces them to the same source: land speculation. In declining cities, land speculation causes parcels to be held vacant in prime locations, leading to disinvestment and an inadequate supply of affordable commercial and residential buildings. In cities with booming economies, land speculation leads to redevelopment of entire neighborhoods where land appreciates in value due to new commercial or residential demand. The solution to gentrification and blight as sources of displacement is to increase land value return and recycling to stabilize urban economies and avoid the boom-bust cycles that are so detrimental to cities.     

Modelling employment durations of NHL head coaches: turnover and post‐succession performance

Match‐level National Hockey League (NHL) data are used to identify factors likely to trigger the departure of a team's coach, and to measure the short‐term impact on subsequent match results. There is a statistically significant link between individual match results and the job departure hazard for up to 15 games prior to the point of departure. The hazard depends on the team's current standing within its conference relative to a pre‐season forecast, recent performance in the Stanley Cup, the coach's age and previous employment with his present team as a player. After controlling for a mean‐reversion effect, teams that changed their coach within‐season are found to perform worse subsequently than those that did not, but the negative effect is short‐lived. Copyright © 2006 John Wiley & Sons, Ltd.     

Kings and Vikings: on the dynamics of competitive agglomeration

This paper proposes a theory of competitive agglomeration—a new enquiry into the origins of hierarchical structures and governments. As a motivating example we analyze the Viking age—the roughly 300 year period beginning in 800 AD—from the perspective of the economics of conflict. The Viking age is interesting because throughout the time period, the scale of conflict increased—small scale raiding behaviour eventually evolved into large scale clashes between armies. With this observation in mind, we present a theoretical model describing the incentives both the defending population and the invading population had to agglomerate into larger groups to better defend against attacks, and engage in attacks, respectively. We tentatively postulate that competitive agglomeration during the Viking era was a key impetus to state formation in Europe.     

Changes in sponsorship value: Competencies and capabilities of successful sponsorship relationships

The sponsorship relationship has evolved considerably over the past few years. As a result, the value delivered to both sponsors and the sports entities with which they form relationships needed to be redefined. While some of these partners have made the necessary leap forward, some sponsors have also been confronted with resistance on the part of sport entities to adapt to evolving perceptions of value. Based on a qualitative study aimed at canvassing the views of some of the most prominent experts in the field and spanning 4 years and four continents, we document this evolution of sponsorship value and identify those key competencies that differentiate successful sponsors from less successful ones. Our research provides insights for other inter-firm relationships, particularly those in the service sector.