nep-sog New Economics Papers
on Sociology of Economics
Issue of 2022‒03‒28
three papers chosen by
Jonas Holmström
Axventure AB

  1. Collaboration in Bipartite Networks By Chih-Sheng Hsieh; Michael D König; Xiaodong Liu; Christian Zimmermann
  2. CDR+1 – the fair research output metric science needs which recognises experimental work done By Roche, Christopher David
  3. Zipf's Law and #econtwitter By Michael P Cameron

  1. By: Chih-Sheng Hsieh (Department of Economics, National Taiwan University); Michael D König (Centre for Economic Policy Research (CEPR), London); Xiaodong Liu (Department of Economics, University of Colorado Boulder); Christian Zimmermann (Department of Economic Research, Federal Reserve Bank of St. Louis)
    Abstract: This paper studies the impact of collaboration on research output. First, we build a micro-founded model for scientific knowledge production, where collaboration between researchers is represented by a bipartite network. The Nash equilibrium of the game incorporates both the complementarity effect between collaborating researchers and the substitutability effect between concurrent projects of the same researcher. Next, we propose a Bayesian MCMC procedure to estimate the structural parameters, taking into account the endogenous participation of researchers in projects. Finally, we illustrate the empirical relevance of the model by analyzing the coauthorship network of economists registered in the RePEc Author Service. The estimated complementarity and substitutability effects are both positive and significant when the endogenous matching between researchers and projects is controlled for, and are downward biased otherwise. To show the importance of correctly estimating the structural model in policy evaluation, we conduct a counterfactual analysis of research incentives. We find that the effectiveness of research incentives tends to be understated when the complementarity effect is ignored and overstated when the substitutability effect is ignored.
    Keywords: bipartite networks, coauthorship networks, research collaboration, spillovers, economics of science
    Date: 2022–02
  2. By: Roche, Christopher David
    Abstract: Citations Divided by Researchers + 1 (CDR+1) is a new metric which allows fair recognition of experimental research output complementing other metrics and avoiding some of their pitfalls.
    Date: 2021–10–14
  3. By: Michael P Cameron (University of Waikato)
    Abstract: This letter investigates the distribution of Twitter followers for the top 521 economists and for the top 5000 Twitter users, testing whether each distribution follows a power law. We find strong evidence for a power law, both for economists and for Twitter more generally. However, the inequality in the distribution of followers is greater among economists, which has potentially negative implications for the quality of economic debate on Twitter.
    Keywords: Social media;Zipf's Law;Power Law;Pareto distribution
    JEL: D85 L86
    Date: 2022–03–12

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