On the use of proxy variables in finance: Why does size matter for bidder announcement returns?

Schneider, Christoph ; Spalt, Oliver

DOI: https://doi.org/10.2139/ssrn.2676189
URL: https://ssrn.com/abstract=2676189
Document Type: Working paper
Year of publication: 2019
The title of a journal, publication series: SSRN Working Paper Series
Place of publication: Rochester, NY
Publication language: English
Institution: Business School > ABWL, Finanzwirtschaft u. Finanzmarktinstitutionen (Spalt 2019-)
Subject: 330 Economics
Abstract: Proxy variables are ubiquitous in empirical research. This paper provides a cautionary tale on the use of proxy variables via an in-depth look at one specific setting: value creation in corporate takeovers, a core subfield of the empirical corporate finance literature. An established fact in that literature is that bidder and target size are major determinants of bidder announcement returns in corporate acquisitions. The leading explanations in the literature attribute this to size proxying for underlying value drivers. A simple but powerful test casts doubt on size-as-proxy explanations: correlations between size and bidder announcement returns change sign across economically significant subsets of the takeover universe. A scaling framework in which size magnifies per-dollar net present value parsimoniously explains these sign-changes and yields additional testable predictions we confirm in the data. Our results thus advocate a fundamental shift in thinking about the role of size for bidder announcement returns. More broadly, our paper illustrates the dangers of too uncritically accepting explanations for economic phenomena based on very indirect proxies. We show how simple, low-cost, techniques including subsample analysis and quantile regressions, can set the bar for questionable proxy explanations higher.

Dieser Eintrag ist Teil der Universitätsbibliographie.

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Schneider, Christoph ; Spalt, Oliver (2019) On the use of proxy variables in finance: Why does size matter for bidder announcement returns? SSRN Working Paper Series Rochester, NY [Working paper]

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