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A Keynesian contribution to the theory of equity yields

A Keynesian contribution to the theory of equity yields

López Bernardo, Javier and Wildauer, Rafael (2018) A Keynesian contribution to the theory of equity yields. Aestimatio: The IEB International Journal of Finance (16). pp. 90-123. ISSN 2173-0164 (doi:https://doi.org/10.5605/IEB.16.5)

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Abstract

This paper offers a Keynesian theory, in a Stock-Flow Consistent framework, to understand equity returns and their links with economic growth and consumption decisions from a long-run perspective. The main features of such a theory can be summarised as follows. First, there is a negative relationship between Tobin’s q and economic growth. Second, the effect of economic growth on dividend yields and earnings growth is positive, but its effect on the growth in the number of shares is negative (i.e. a ‘dilution effect’), which makes the relationship between equity returns and economic growth undetermined a priori. Third, consumption decisions emerge as crucial drivers for shareholder profitability in the long-run. And fourth, in the post-Keynesian theory the equity yield is determined by aggregate demand, and no theory of risk is needed. Finally, the post-Keynesian theory will be compared against the mainstream financial theory, which features the famous risk-return nexus where asset returns are given by the volatility of the asset respect to consumption. It will be claimed that the use of risk for determining equity returns at the macroeconomic level is problematic, and that depending on the risk definition assumed, the risk-return relationship can be either positive or negative – being thus such a nexus of little theoretical significance and posing serious problems for mainstream finance.

Item Type: Article
Uncontrolled Keywords: equity yield, dividend yield, Tobin's q, stock-flow consistent models
Subjects: H Social Sciences > HG Finance
Faculty / Department / Research Group: Faculty of Business
Faculty of Business > Department of International Business & Economics
Faculty of Business > Institute of Political Economy, Governance, Finance and Accountability (IPEGFA)
Faculty of Business > Institute of Political Economy, Governance, Finance and Accountability (IPEGFA) > Centre for Governance, Risk & Accountability (CGRA)
Related URLs:
Last Modified: 08 May 2019 15:27
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: GREAT 4
URI: http://gala.gre.ac.uk/id/eprint/23620

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