Risk Uncertainty and Supply Chain Decisions: A Real Options Perspective

Supply chain risk uncertainty can create severe repercussions, thus it is not surprising that research interest in supply chain risk has been growing. While extant inquiry is informative, there is a lack of investigations that center on supply chain investment decisions when facing high levels of risk uncertainty. Given the potential dollar value involved in these decisions, an understanding of how these supply chain decisions are made is of significant theoretical and practical importance. Real options theory, with its focus on decision making under conditions of uncertainty, is an appealing theoretical lens for this endeavor. In essence, real options theory asserts that managerial decisions center on creating and then exercising or not exercising certain opportunities. To date, theorizing about and investigations of real options have used firms as their focus. Not yet examined are real options within supply chains that cross firm boundaries and drive much of the competitive activity in the modern economy. Accordingly, we extend real options theory to the supply chain context by examining how different types of options are approached relative to supply chain project investments. Specifically, we theorize how the options will be related to perceived value under conditions of high supply chain risk uncertainty. Overall, our investigation builds knowledge by extending real options theory to the supply chain context and by providing evidence suggesting some options operate differently in supply chains than they do in firms.     

Sense of coherence and ill health among the unemployed and re-employed after closure of an assembly plant

The aim of this study was to investigate the relationship between employment status, ill health and sense of coherence(SOC). A cross-sectional sample of the former workers at the closed down Volvo Kalmar plant in Sweden was used. A questionnaire was mailed to all identified subjects 2 years after the closure of the plant. Responses were obtained from 344 persons, of whom 173 were re-employed and 92 were unemployed. They answered the questionnaire anonymously on background variables, SOC and ill health (physical and psychological symptoms). A notable difference was found between the re-employed and unemployed, where the unemployed reported symptoms significantly more often as well as a significantly weaker SOC. A main finding in a four cell model indicated that unemployment had a rather low impact on symptoms in the presence of a strong SOC. Structural equation modelling (SEM) was performed with simultaneous analysis of the unemployed and reemployed. The SEM analysis indicated that SOC seemed to have a greater impact on psychological symptoms among unemployed compared with re-employed persons. However, it should be noted that the present study does not allow for the determination of cause-effect relationships.     

Sourcing Research as an Intellectual Network of Ideas*

What are the current intellectual clusters in the sourcing literature? How do these clusters relate to each other? How has sourcing‐related research changed over the last 10 years? We respond to these questions by examining the intellectual structure of research in the sourcing literature across 21 journals during the last decade (1998–2007). Multidimensional scaling is used to analyze cocitation data involving 72,003 citations from 1,960 sourcing articles. The results indicate that 10 different sourcing clusters emerged in the 1998–2002 period and 6 sourcing clusters surfaced in the 2003–2007 period. Five of the intellectual clusters in 1998–2002 disappeared in 2003–2007, five clusters remained, and one new cluster materialized in 2003–2007 that did not exist in the earlier period (Managerial Behavior and Upstream Decision Making).     

The influence of dual-identity development on the psychosocial functioning of African-American gay and bisexual men

To examine the influence of racial-ethnic and sexual identity development on the psychosocial functioning of African-American gay and bisexual men (AAGBM), 174 AAGBM completed questionnaire packets designed to assess their levels of racial-ethnic and sexual identity development, self-esteem, social support, male gender role stress, HIV prevention self-efficacy, psychological distress, and life satisfaction. The results indicate that AAGBM who possess more positive (i.e., integrated) self-identification as being African American and gay reported higher levels of self-esteem, HIV prevention self-efficacy, stronger social support networks, greater levels of life satisfaction, and lower levels of male gender role and psychological distress than their counterparts who reported less positive (i.e., less well integrated) African American and gay identity development. Although higher levels of racial-ethnic identity development were associated with greater levels of life satisfaction, sexual identity development was not.     

The exchange and allocation of decision power

Traditional theories of multi-person choice takes as exogenous data the allocation of decision power, that is, they assume the answer to the question of who-decides-what. This paper applies the standard economic theory of scarce resource allocation to explain observed allocations of decision power using as an illustrative example the allocation of power across committees in the U.S. Congress.     

Religiousness and Fertility among European Muslims

Based on official data on religion, national origin, and other indicators of ethnic origin, Muslim fertility in 13 European countries is higher than that for other women, but in most countries with trend data the differences are diminishing over time. Fertility varies by country of origin of immigrants. Various European survey data show that higher proportions of Muslim women are married and their commitment to traditional family values is greater than among other women. Muslim women are more religious than non‐Muslim women and religiousness is directly associated with fertility. Among Muslim women, religiousness and commitment to family values are equally important for fertility, while for non‐Muslim women religiousness is much less important.     

‘Investment’ in Union Membership: A Managerial Approach

This paper concerns wage formation in a unionized economy when union membership is endogenous and determined by employment. A union is run by a leadership which has as an objective to strengthen the union’s position in the labour market. This is achieved by building up membership. Among the results, it is found that since membership is determined by employment, the inclusion of the leadership’s preferences into a union’s objective function produces lower real wages than a static version would predict. It is also shown that an increase in the union’s rate of time preference increases the natural rate of unemployment, while an increase in the speed at which workers enter/leave a union has an opposite effect.