2016

Key Players

Reprint No. 2016:21

Author(s): Yves ZenouYear: 2016 Title: Oxford Handbook of the Economics of Networks Chapter: 11Editor(s): Yann Bramoullé, Andrea Galeotti and Brian RogersPublisher: Oxford University PressCity: Oxford, UK Pages: 244–274
Online article (restrictions may apply)


In this chapter, we provide an overview of the literature on key players in networks. We first introduce the theoretical concept of the key player who is the agent that should be targeted by the planner so that, once removed, she will generate the highest level of reduction in total activity. We also consider another notion of key players where the planner is targeting a set of network nodes that are optimally positioned to quickly diffuse information, attitudes, behaviors or goods. Then, we examine the empirical tests of the key-player policies for criminal networks, education, R&D networks, financial networks and diffusion of microfinance. We show that implementing such a policy outperforms other standard policies such as targeting the most active agents in a network.


Reference:
Zenou, Yves (2016), "Key Players". Chapter 11, pp. 244–274 in Yann Bramoullé, Andrea Galeotti and Brian Rogers, eds., Oxford Handbook of the Economics of Networks. Oxford, UK: Oxford University Press.

An Agenda for Europe

Institutional Reform for Innovation and Entrepreneurship

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The authors of this book, Niklas Elert, Magnus Henrekson and Mikael Stenkula, advise the economies of the European Union to become more entrepreneurial in promoting innovation and economic growth. The authors propose a reform strategy with respect to several aspects to achieve this goal.

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