Title: Do demand curves for stocks slope down? - new evidence from a unique event in India

Authors: Srikanth Parthasarathy

Addresses: Rajalakshmi School of Business, Kuthambakkam, Chembarambakkam, Chennai – 600124, India

Abstract: The objective of this study is to examine the price and non-price effects of the constituent stocks following the change of the computation methodology of S&P CNX Nifty index from full market capitalisation weighted methodology to the free float market capitalisation weighted methodology in June 2009 in order to resolve whether the demand curves for stocks slope down. This study has followed methodology similar to that of Kaul et al. (2000). The event methodology is used along with cross sectional regressions associating abnormal returns and demand shift. Overall, the empirical evidence in this study supports the downward sloping demand curves for the stocks. The results have implications for one of the basic assumptions in the finance theory, regulators, investors, index providers and managers. To the best of the author's knowledge, this is the first study to examine the slope of demand curves, in such a unique setting without information content.

Keywords: India; financial markets; index redefinition; demand curves.

DOI: 10.1504/AAJFA.2021.117737

Afro-Asian Journal of Finance and Accounting, 2021 Vol.11 No.4, pp.561 - 582

Received: 18 May 2019
Accepted: 23 Feb 2020
Published online: 23 Sep 2021 *

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