Online networks can be construed as social networks in which people engage in interactions, build relationships, share information, and request and extend assistance to each other using electronic communication technologies. Is social capital embedded in online networks? How is such social capital mobilized (i.e., shared)? What structural properties of cyber networks are associated with mobiliz...

This paper examines risk-taking incentives in banks under different accounting regimes with capital regulation. In the model the bank’s decisions of capital issuance and investment policy are jointly determined. Given exogenous minimum capital requirement, the bank is more likely to issue equity capital in excess of the minimum required level and implement less risky investment policy under eit...

OLIVIER LOURDAIS*†, XAVIER BONNET*‡, RICHARD SHINE§, DALE DENARDO¶, GUY NAULLEAU* and MICHAEL GUILLON* *Centre d’Etudes Biologiques de Chizé, CNRS, 79360, Villiers en Bois, France; †University of Poitiers, 40 avenue du recteur Pineau, 86022 Poitiers, France; ‡Conseil Général des Deux Sèvres, rue de l’abreuvoir, 79000 Niort, France; §School of Biological Sciences, University of Sydney, Australia...

The paper first differentiates “control” and “incentive”. Then it shows that integration in which the principal gets ownership of the physical assets necessary for the agent to create values enhances control of the principal over the agent’s human capital and thus improve coordination ex post, but that reduces the agent’s ex ante incentive to make human capital investment and ex post incentive ...

The distortion in educational investment in poorer children is often attributed to credit market imperfections and hence to the unequal access of children to educational opportunity. However, the distortion might also be attributable to disincentive effects that cause children to make inefficient use of educational opportunities. This possibility is demonstrated for an overlapping generations e...

In this Appendix, we discuss the core theoretical claims of Piketty’s Capital in the 21st Century, in an effort to clarify the relationship between r − g and inequality. The emphasis will be on four issues: (1) what types of models and economic forces lead to a divergence of inequality when r > g; (2) the role of social mobility in this process; (3) what types of models lead instead to a relati...

In an effort to bolster soundness standards in banking, the 2006 international regulatory agreement of Basel II requires globally active banks to include operational risk in estimating regulatory and economic capital to be held against major types of risk. This paper discusses practical issues faced by a bank in designing and implementing an operational risk capital model. Focusing on the use o...

Acknowledgement: We appreciate comments and suggestions from the reviewers and from participants of the SEJ Special Issue conference at Temple University in April 2010. Zoltan Acs provided highly useful suggestions. We appreciate careful editing by Tamzin Mitchell.

Collaboration in research continuously gains importance. Recent developments in online collaboration technology, namely social research network sites (SRNS), specifically aim to support research collaboration. SRNS allow researchers to present themselves, to network, to communicate, and to collaborate. Acceptance of this technology by researchers has received little academic attention. Understa...