Causal ambiguity: shape-flip between product market competition at industry level and voluntary disclosure

Susana Gago Rodríguez, Bing Guo, Gilberto Marquez Illescas and Manuel Núñez Nickel

Accounting and Business Research, 2020, vol. 50, issue 6, 574-607

Abstract: This paper analyses the moderating effect of causal ambiguity on the relation between product market competition (i.e. product substitution) and firms’ voluntary disclosure behaviour. Our empirical results show a ‘shape-flipping function’. That is, we observe an inverse U-shaped relation between competition and disclosure when causal ambiguity is low. Such a relation gradually evolves towards a U shape as the level of causal ambiguity increases. Our theoretical explanation is that causal ambiguity relaxes or inhibits the intensity of the proprietary and agency costs of voluntary disclosure (underlying restrictions of competition), and simultaneously strengthens the subjacent incentives of competition to reveal information. We obtain empirical evidence of this global perspective based on logistic estimations of a sample of US manufacturing firms from 2002 to 2015. Our models use earnings per share (EPS) forecast as a proxy of voluntarily disclosed information, inverse margin rate as a proxy of product market competition at industry level, and several proxies of causal ambiguity (i.e. firm complexity and firm predictability).

Date: 2020
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DOI: 10.1080/00014788.2020.1723056

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