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Stars and Brokers : Knowledge Spillovers Among Medical Scientists

This paper estimates the heterogeneity in peer effects among research scientists in terms of network position. I propose a new measure, brokerage degree, that determines the extent to which a scientist depends on a coauthor to provide him unique access to other scientists further away. I apply this measure to the coauthorship network of medical scientists. I show that network position is crucial for productivity by facilitating access to nonredundant knowledge. Identification results from variation in brokerage degree among coauthors linked to a star scientist who dies. A one standard deviation increase in the brokerage degree of a deceased star is associated with a 10% decrease in annual publications of his coauthor. By applying brokerage degree to topics, I provide evidence that access to knowledge flows embodied in scientists further away can account for a large proportion of the identified heterogeneity effect.

Ketersediaan

Informasi Detail

Judul Seri

MANAGEMENT SCIENCE; Vol.68 No.4 April 2022

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 2513-2532

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

INNOVATION
PRODUCTIVITY
NETWORK
PEER EFFECTS
SCIENTIFIC COLLABORATION
KNOWLEDGE TRANSMISSION

Info Detail Spesifik

https://doi.org/10.1287/mnsc.2021.4032

Pernyataan Tanggungjawab

Myra Mohnen

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