{"version":"1.0","type":"link","title":"Joint hypothesis problem - Newikis","description":"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'…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}