Reliable Inference in Categorical Regression Analysis for Non‐randomly Coarsened Observations

In most surveys, one is confronted with missing or, more generally, coarse data. Traditional methods dealing with these data require strong, untestable and often doubtful assumptions, for example, coarsening at random. But due to the resulting, potentially severe bias, there is a growing interest in approaches that only include tenable knowledge about the coarsening process, leading to imprecise but reliable results. In this spirit, we study regression analysis with a coarse categorical‐dependent variable and precisely observed categorical covariates. Our (profile) likelihood‐based approach can incorporate weak knowledge about the coarsening process and thus offers a synthesis of traditional methods and cautious strategies refraining from any coarsening assumptions. This also allows a discussion of the uncertainty about the coarsening process, besides sampling uncertainty and model uncertainty. Our procedure is illustrated with data of the panel study ‘Labour market and social security' conducted by the Institute for Employment Research, whose questionnaire design produces coarse data.     

The iron cage exposed: Institutional pressures and heterogeneity across the healthcare supply chain

The healthcare industry has been known to operate in a strong institutional environment (i.e. government regulations), and the implementation of inter-organizational systems (IOS) has followed an institutional process. Extending this perspective across different tiers in the healthcare supply chain, we investigate how organizations in different tiers in the supply chain (i.e. hospitals, distributors and manufacturers) respond to institutional pressures when implementing IOS. How institutional dynamics unfold across multiple tiers of a supply chain is an uncharted area of research, and we take the theory-building case study approach using data collected from ten organizations. Because organizations are embedded in their respective tiers, our within-tier analyses are equivalent to cross-organization analyses. In this regard, the cross-case analyses occur at two different levels: at each tier level (i.e. across multiple hospitals, multiple distributors and multiple manufacturers) and across the supply chain (i.e. across all three tiers). The study shows how different institutional pressures such as coercive, mimetic, and normative manifest across the tiers. It also demonstrates how a differential mix of endogenous and institutional pressures lead to mixed organizational responses across the tiers. The propositions developed from the study enrich institutional theory arguments within the information systems and supply chain management disciplines. They highlight how the IOS implementation dynamics within and across different tiers in a supply chain result in heterogeneous rather than isomorphic consequences, thereby exposing the “iron cage” of institutionalization.     

Project management systems: Moving project management from an operational to a strategic discipline

This article illustrates one aspect of the concept of “fit” between an organization's implementation of project management and its organizational context by exploring how the underlying drivers of an organization's strategy might influence not only the nature of the projects that it undertakes, but also the appropriateness of the arrangements that it makes to manage those projects. Using a model conceptualized from the literature on strategic management, an analysis of four organizations that have made significant investments in project management over the past 5 years supports the hypothesis that the degree of “fit” between an organization's strategic drivers of value and the configuration of its project management system influences the value it obtains from project management.     

The impact of job embeddedness on innovation‐related behaviors

It has often been argued that low turnover leads to less innovation in organizations, not only because fewer job vacancies are available for outsiders with new ideas, but also because longer‐tenured employees might be more resistant to change. In this study, we propose that job embeddedness may actually strengthen employees' motivation to generate, spread, and implement innovative ideas in organizations. In a longitudinal study with a diverse sample, we found that job embeddedness was positively and significantly related to innovation‐related behaviors, even after controlling for demographic variables, the job attitudes, and the job perceptions that are frequently associated with job embeddedness. In addition, we found some support for the proposed moderating effects of career stage; that is, the relationship between job embeddedness and implementing innovative ideas was stronger for individuals in the mid‐ and late stages of their careers than for those in the early stage of their careers. This article concludes with directions for developing future theory. © 2010 Wiley Periodicals, Inc.     

Socio-economic impacts of migrant clustering on Dutch neighbourhoods: In search of optimal migrant diversity

The recent empirical literature on the impact of migrant clustering on socio-economic welfare indicators shows inconclusive and often even contradictory results. In this paper we argue that there is not an unambiguous empirical outcome of migrant or ethnic diversity, but that it depends on the level of migrant or ethnic composition itself. A low degree of socio-economic and cultural diversity may be beneficial for neighbourhoods, whereas an excessive degree of diversity may be harmful. We test this hypothesis by (i) constructing a migrant clustering index for all neighbourhoods in the Netherlands based on a gamma index; and, subsequently, (ii) incorporating it in a regression framework to assess three relevant socio-economic outcomes: neighbourhood income, number of students, and average housing value. We show that there is apparently an optimal level of migrant clustering, and that it is remarkably robust. For the Netherlands as a whole and for the ten largest Dutch cities as well, it is striking that largely similar effects were found. Our results suggest that population composition in neighbourhoods may vary up to about 40 per cent from the national average before migrant clustering generates negative effects.     

Supply-side effects of strong energy price hikes in German industry and transportation

This article studies the short-term effects of energy price hikes on the supply of industrial goods and transport services including the repercussions on remuneration of input factors. The empirical analysis is based on a theoretical model, which assumes that the output good is produced by capital, labour and energy according to a nested production function framework where capital and energy are combined by a CES function at the intermediate stage. The output responses to energy price changes are derived, using estimates of the elasticity of substitution. While industry suffered more from the oil price shock of the late 1970s than from that of the early 1970s and the 2004?C2008 upsurge, evidence suggests the reverse for transportation. Regarding the impact on income distribution, both sectors share the same pattern, whereby in the recent episode, rising energy costs were more than compensated by falling unit labour costs, while in the 1970s, cost structures had been strained by an expansive wage policy in addition to the oil price shocks.     

Financing Transit Systems Through Value Capture

A bstract .   Much of the literature on value capture reports empirical findings on the incidence of rising land values related to distance from a transit stop following the installation of rail transit improvements. This annotated bibliography shows that the elevated value effects of transit access are well documented. The authors maintain that it is now time for transit/land-use research to move from hypothesis testing to practical applications of value capture . Longitudinal models can help predict land-value increments over a period of time, yielding estimates of the total capturable revenues that would support the debt financing of transit improvement projects.     

Turning Agents into Psychological Principals: Aligning Interests of Non‐Owners through Psychological Ownership

Principals who delegate tasks to agents face the perennial challenge of overcoming agency problems. We investigate whether feelings of ownership among senior managers in the absence of formal ownership can align agents' interests with those of principals, thus turning agents into psychological principals. Using a moderated mediation model, we find that psychological ownership is positively related to company performance through the mediating effect of individual‐level entrepreneurial behaviour. We also find that the effect of psychological ownership on individual‐level entrepreneurial behaviour and, ultimately, company performance is weaker for high levels of monitoring compared to low levels. These findings offer important contributions to agency, psychological ownership, and entrepreneurship literatures.