Market Efficiency Hypothesis

Melody Lo ()
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Melody Lo: University of Texas at San Antonio

Chapter 30 in Encyclopedia of Finance, 2022, pp 937-943 from Springer

Abstract: Abstract Market efficiency is one of the most fundamental research topics in both economics and finance. Since (Fama, Journal of Finance 25(2): 383–417, 1970) formally introduced the concept of market efficiency, studies have been developed at length to examine issues regarding the efficiency of various financial markets. In this chapter, we review elements, which are at the heart of market efficiency literature: the statistical efficiency market models, joint hypothesis testing problem, and three categories of testing literature.

Keywords: Autocorrelation; Hypothesis testing; Information; Market efficiency; Price formation; Random walk model; Security returns; Serial correlation (tests); (Speculative) profits; (Sub)martingale; Trading rules (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-030-91231-4_30

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DOI: 10.1007/978-3-030-91231-4_30

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