Raising the Regional Leviathan: A Relational‐Materialist Conceptualization of Regions‐in‐Becoming as Publics‐in‐Stabilization

The purpose of this article is to contribute to the understanding of how spatial entities in general — and those spatial entities that are defined as ‘regions’ in particular — form, evolve and sometimes stabilize. Inspired by the scholarship of Noortje Marres, the article explores how regions‐in‐becoming may be gainfully conceptualized as publics‐in‐stabilization. In the article it is argued that some of the mechanisms involved in such processes pertain to how territorially framed issues sometimes become formulated as loosely articulated propositions for regionalization. These can, with time, generate emergent stakeholder communities, which in turn may become stabilized and delegated to more durable forms and materials which can eventually become naturalized as recognized regions. A suggested conceptual model is utilized to perform an analysis of empirical material from three contemporary processes of regionalization in Northern Europe with the purpose of examining and discussing some of the potential merits and shortcomings of the conceptual model. It is concluded that adopting the proposed perspective can enable scholars to highlight some of the mechanisms whereby vague and non‐coherent propositions for regionalization within time may be singularized and stabilized to such a degree that they become taken for granted as naturalized spatialities.     

The pace of intermediate‐product introductions

This paper models frequency of introductions of newer generations of an intermediate‐product sold by an upstream ‘developer’ firm to downstream manufacturer firms. The manufacturers use the intermediate product to manufacture final products, and are heterogeneous in the time it takes them to develop and introduce final products based on the latest generation of the intermediate product. This downstream heterogeneity could arise, for example, from heterogeneity in manufacturers' technical skills or existing patent regimes. Among other results, we show that the optimal frequency of introduction of the intermediate‐product can increase or decrease in the extent of this downstream heterogeneity. Copyright © 2006 John Wiley & Sons, Ltd.     

Hospital competition under pay‐for‐performance: Quality,mortality, and readmissions

Health outcomes, such as mortality and readmission rates, are commonly used as indicators of hospital quality and as a basis to design pay‐for‐performance (P4P) incentive schemes. We propose a model of hospital behavior under P4P where patients differ in severity and can choose hospital based on quality. We assume that risk‐adjustment is not fully accounted for and that unobserved dimensions of severity remain. We show that the introduction of P4P which rewards lower mortality and/or readmission rates can weaken or strengthen hospitals' incentive to provide quality. Since patients with higher severity have a different probability of exercising patient choice when quality varies, this introduces a selection bias (patient composition effect) which in turn alters quality incentives. We also show that this composition effect increases with the degree of competition. Critically, readmission rates suffer from one additional source of selection bias through mortality rates since quality affects the distribution of survived patients. This implies that the scope for counterproductive effects of P4P is larger when financial rewards are linked to readmission rates rather than mortality rates.     

Exclusionary practices in two‐sided markets: The effect of radius clauses on competition between shopping centers

We analyze exclusionary conduct of platforms in 2‐sided markets. Motivated by recent antitrust cases, we provide a discussion of the likely positive and normative effects of exclusivity clauses, which prevent tenants from opening outlets in other shopping centers covered by the clause. In a standard 2‐sided market model, we show that exclusivity agreements are especially profitable for the incumbent and detrimental to social welfare if competition is intense between the 2 shopping centers. We argue that the focus of courts on market definition is misplaced in markets determined by competitive bottlenecks.     

Building manufacturing flexibility with strategic suppliers and contingent effect of product dynamism on customer satisfaction

A critical capability sought by an increasing number of firms is manufacturing flexibility, because it allows to effectively respond to dynamic markets. Grounded upon a supply chain perspective, this paper aims to assess antecedents of manufacturing flexibility that stem from the upstream relationships with strategic suppliers. Additionally, it is one of the first to analyze the contingent effect of product dynamism on the impact of manufacturing flexibility on downstream customer satisfaction. We apply structural equation modeling to a sample of 155 companies in order to analyze our hypotheses. Results strongly indicate that buyer-supplier collaboration facilitates inter-organizational learning that in turn allows organizations to develop manufacturing flexibility and increase customer satisfaction. Approaching manufacturing flexibility from a broader supply chain view thus pays off. Moreover, we apply multi-group confirmatory factor analysis to explore the contingent effect of product dynamism on the relationship between manufacturing flexibility and customer satisfaction. Results suggest a stronger impact of manufacturing flexibility on performance in the context of higher product dynamism in companies’ customer markets, confirming the importance of a contingency view to flexibility.     

Three‐period,two‐treatment crossover design under long‐term carryover effect

The paper describes non‐parametric approach for analysis of a three‐period, two‐treatment, four‐sequence crossover design in which test procedure for interchangeability of the treatment effects is obtained. The proposed procedure is based on a non‐parametric model, which incorporates, along with the direct treatment effects and the usual carryover effects, the long‐term carryover effects. Relevant competitors are obtained. Related asymptotic results are given. By performing simulation study, we compared the procedures with respect to type I error rate and power. Furthermore, confidence intervals for treatment differences are studied. The procedures are illustrated with a data study.     

A Simple Improvement of the IV‐estimator for the Classical Errors‐in‐Variables Problem

Two measures of an error‐ridden variable make it possible to solve the classical errors‐in‐Variable problem by using one measure as an instrument for the other. It is well known that a second IV‐estimate can be obtained by reversing the roles of the two measures. We explore the optimal linear combination of these two estimates. In a Monte Carlo study, we show that the gain in precision is significant. The proposed estimator also compares well with full information maximum likelihood under normality. We illustrate the method by estimating the capital elasticity in the Norwegian ICT‐industry.     

Improving inventory management in the retail store: The effectiveness of RFID tagging across product categories

While there is a growing body of evidence that Radio Frequency Identification (RFID) tagging can be effective in improving inventory management in the retail store, retailers have little guidance on best practices for implementation. One important unresolved issue is whether tagging is equally effective across different product categories, and if there is a way to predict which categories are better candidates for deployment. We conduct a field experiment comparing the improvement in inventory record accuracy before and after implementing RFID-enabled adjustments to the inventory management system. We find evidence that the effectiveness of RFID tagging is not homogenous for all products. Reductions in the percentage of stockouts ranged from 21% to 36%, depending on category. Categories that are most likely to see a decrease in stockouts, thanks to RFID, have a greater turnover, greater sales volume, greater product variety, lower item cost, and greater inventory density. We draw inferences for retail supply chains which are considering how best to allocate their resources in the most effective manner.     

The Effect of Employment while in High School on Educational Attainment: A Conditional Difference‐in‐Differences Approach*

Using American panel data from the National Education Longitudinal Study of 1988, this article investigates the effect of working during grade 12 on attainment. We employ, for the first time in the related literature, a semiparametric propensity score matching approach combined with difference‐in‐differences. We address selection on both observables and unobservables associated with part‐time work decisions, without the need for instrumental variable. Once such factors are controlled for, little to no effects on reading and math scores are found. Overall, our results therefore suggest a negligible academic cost from part‐time working by the end of high school.     

The strategic use of managerial incentives in a non‐profit firm mixed duopoly

A mixed duopoly setting is examined where a private non‐profit firm (NPO) competes with a private profit‐maximizer. The NPO's stakeholders select a contract for their managers. A novel NPO objective function is utilized which takes into account all the likely returns to the NPO's stakeholders (NPO profits and the surplus accruing to the NPO stakeholders) in such a commercial setting. In sub‐game perfect equilibria, it is shown that the NPO's managers generally will not be given the NPO's true objective to optimize. It is also shown that aggregate social welfare may increase or decrease due to this managerial contracting behavior or the use of NPO membership fees. Copyright © 2007 John Wiley & Sons, Ltd.