Inferring the Ideological Affliations of Political Committees via Financial Contributions Networks

Yiran Chen and Hanming Fang
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Yiran Chen: Department of Economics, University of Pennsylvania

PIER Working Paper Archive from Penn Institute for Economic Research, Department of Economics, University of Pennsylvania

Abstract: About two thirds of the political committees registered with the Federal Election Commission do not self identify their party affiliations. In this paper we propose and implement a novel Bayesian approach to infer about the ideological affiliations of political committees based on the network of the financial contributions among them. In Monte Carlo simulations, we demonstrate that our estimation algorithm achieves very high accuracy in recovering their latent ideological affiliations when the pairwise difference in ideology groups' connection patterns satisfy a condition known as the Chernoff-Hellinger divergence criterion. We illustrate our approach using the campaign finance record in 2003-2004 election cycle. Using the posterior mode to categorize the ideological affiliations of the political committees, our estimates match the self reported ideology for 94.36% of those committees who self reported to be Democratic and 89.49% of those committees who self reported to be Republican.

Keywords: Ideology; Network Analysis; Stochastic Block Models (search for similar items in EconPapers)
JEL-codes: D72 D85 P16 (search for similar items in EconPapers)
Pages: 85 pages
Date: 2017-12-10, Revised 2017-12-10
New Economics Papers: this item is included in nep-cdm, nep-pol and nep-soc
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Working Paper: Inferring the Ideological Affiliations of Political Committees via Financial Contributions Networks (2017)
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Persistent link: https://EconPapers.repec.org/RePEc:pen:papers:17-022

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