Bitte verwenden Sie diesen Link, um diese Publikation zu zitieren, oder auf sie als Internetquelle zu verweisen: https://hdl.handle.net/10419/110166 
Erscheinungsjahr: 
2015
Schriftenreihe/Nr.: 
IZA Discussion Papers No. 8896
Verlag: 
Institute for the Study of Labor (IZA), Bonn
Zusammenfassung: 
We study some recent developments and challenges in the empirics of the effects of social networks. We focus in particular on researchers' ability to make policy recommendations based on a standard linear econometric model. We examine the potential compatibility between this type of econometric model and a microeconomic theoretical approach based on fundamentals, such as preferences, technology and decision processes. We discuss sources of identification for the social multiplier as well as for the identity of the key player. We study the possibility of testing endogeneity in network formation. We analyse the use of proxy variables and their impact for the causal interpretation of the peer effect coefficients. Our analysis suggests that greater care should be taken in grounding econometric network models to sound and credible theoretical underpinnings.
Schlagwörter: 
social networks
social multiplier
network formation
identification
proxy variables
policy analysis
JEL: 
A14
C33
C36
D85
Z13
Dokumentart: 
Working Paper

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