Joint hypothesis problem
id:
joint-hypothesis-problem-235-17015906
title:
Joint hypothesis problem
text:
The joint hypothesis problem is the problem that testing for market efficiency is difficult, or even impossible. Any attempts to test for market (in)efficiency must involve asset pricing models so that there are expected returns to compare to real returns. It is not possible to measure 'abnormal' returns without expected returns predicted by pricing models. Therefore, anomalous market returns may reflect market inefficiency, an inaccurate asset pricing model or both. This problem is discussed in
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Joint_hypothesis_problem
date created:
date modified:
2023-03-06T01:46:18Z
main entity:
{"identifier":"Q17100679","url":"https://www.wikidata.org/entity/Q17100679"}
image:
fields total:
13
integrity:
13