Soziale Kollektiva

Ohne ZusammenfassungDer vorliegende Aufsatz ist aus einem Vortrag, gehalten in der Nationalökonomischen Gesellschaft, Wien, im Juli 1928, entstanden.     

Observable restrictions of general equilibrium models with financial markets

This paper examines whether general equilibrium models of exchange economies with incomplete financial markets impose restrictions on prices of commodities and assets given the stochastic processes of dividends and aggregate endowments. We show that the assumption of time-separable expected utility implies restriction on the cross-section of asset prices as well as on spot commodity prices. However, a relaxation of the assumption of time separability will generally destroy these restriction.     

Overeducation, regional labor markets, and spatial flexibility

For most workers, access to suitable employment is severely restricted by the fact that they look for jobs in the regional labor market rather than the global one. In this paper we analyze how macrolevel opportunities (regional market characteristics) and microlevel restrictions (the extent to which job searchers are restricted to the regional market) can help to explain the phenomenon of overeducation. We use a two-step procedure to control selective access to employment. The results show that the size of the labor market is an important factor in avoiding overeducation.     

Social networks in the global banking sector

We show that banks with shared social connections partner more often in the global syndicated loan market and that central banks in the network play dominant roles in various interbank transactions, indicating that social connections facilitate business connections. However, more centralized banks in the network also contribute significantly to the global systemic risk. Moreover, we find the soft information generated by social networks is particularly valuable when potential partners operate under different accounting and regulatory standards. Finally, we show that the recent banking crisis significantly limited the positive soft information effects of social networks in the global banking system.     

Climate change adaptation actions by fish farmers: evidence from the Niger Delta Region of Nigeria

This paper examined climate change adaptation strategies in fish farming and the effect of such methods on the profit of fish farmers in the Niger Delta region of Nigeria, Africa’s most populous country. Using cross‐sectional data obtained from 420 fish farmers from the region and applying multivariate probit and instrumental variable regressions, the study found that fish farmers have adopted a broad range of strategies to address climate risk and that these have significantly increased farmers’ profit. Our findings indicated important relationships between certain farm, socio‐economic and institutional characteristics and the adaptation actions. The study provides useful insight into factors that potentially encourage the adoption of livelihood‐enhancing climate risk adaptation strategies by fish farmers in the Niger Delta region and similar contexts.     

Students' perception of corporate social responsibility: Analyzing the influence of gender,academic status,and exposure to business ethics education

Studies on students' perception of corporate social responsibility (CSR) have been growing in western scholarship. For students in African countries, such as Nigeria, there is little that is known about how and whether gender, level of study, and being enrolled in business education courses impact their perception of and disposition towards CSR. This study explores the significance of gender, academic status or level of study, and exposure to business ethics education (BEE) on Nigerian students' perception of CSR as a veritable business ethic. Specifically, the effects of these factors on students' perception of CSR are examined using analysis of variance. The results show a significant effect of exposure to BEE and gender on CSR‐sensitivity, and a mild, but significant effect of academic status. This implies that male students and female students had different perspectives on CSR issues. Students who took ethics courses and those who did not would run businesses differently. However, age and experience on campus did not influence students' perception or position on CSR. The study recommends that more behavioral models be estimated with the inclusion of more demographic and socioeconomic variables to elicit more robust results.