This discussion paper has led to a publication in the <I>Journal of Business Ethics</I>, 2013, 117(3), 601-13.<P> Halal certification of financials product may reduce transaction costs for its buyers when it provides a trusted standard for investors that seek to comply with Islamic law. However, we show...</p></i>

This paper examines how a radical technological innovation affects alliance formation of firms and subsequent network structures. We use longitudinal data of interfirm R&D collaborations in the biopharmaceutical industry in which a new technological regime is established. Our findings suggest...

This paper investigates the extent of the holdup underinvestment problem in a buyer-seller relationship in which the seller has private information about his alternative trading opportunities. Theory predicts that, compared with a situation in which outside options are publicly observed, the...

We consider price-fee competition in bilateral oligopolies with perfectly-divisible goods, non-expandable infrastructures, concentrated agents on both sides, and constant marginal costs. We define and characterize stable market outcomes. Buyers exclusively trade with the supplier with whom they...

Accepted for publication in the <I>Journal of Development Economics</I>.<P> This paper introduces the Small World model (Watts and Strogatz, Nature, 1998) into the theory of economic growth and investigates how increasing economic integration affects firm size and efficiency, norm enforcement, and...</p></i>

This paper investigates the extent of the holdup underinvestment problem in a buyer-seller relationship in which the seller has private information about his alternative trading opportunities. Theory predicts that, compared with a situation in which outside options are publicly observed, the...

This paper examines how a radical technological innovation affects alliance formation of firms and subsequent network structures. We use longitudinal data of interfirm R&D collaborations in the biopharmaceutical industry in which a new technological regime is established. Our findings suggest...

Recent empirical evidence suggests that financial networks exhibit a core periphery network structure. This paper aims at giving an economic explanation for the emergence of such a structure using network formation theory. Focusing on intermediation benefits, we find that a core periphery...

This article analyzes under which conditions a manager can motivate a junior worker by verbal communication, and explains why communication is often tied up with organizational choices as job enlargement and collaboration. Our model has two important features. First, the manager has more...

We present a dynamic model of the interaction between interest groups and policymakers, featuring endogenous interest group formation. We show that complicated dynamic patterns in economic policies may arise once interest group formation is taken into account. <BR><BR>