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    Bank of Finland, Rauhankatu 19 B, Helsinki

Söhnke Bartram (Warwick Business School): Global market inefficiencies

Co-author: Mark Grinblatt


We use point-in-time accounting data to estimate monthly fair values of more than 25,000 stocks from 36 countries over more than two decades. Trading on deviations from fair value, which do not proxy for known anomalies, yields statistically and economically significant risk-adjusted returns in most regions, especially the Asia Pacific and emerging markets countries. Pre-transaction cost alphas are positively related to trading costs, but in most regions alphas also significantly exceed country-specific trading costs. Thus, global equity markets are inefficient, but are relatively less efficient in counties with quantifiable market frictions, particularly trading costs, that deter arbitrageurs.


Research seminars organised by the Bank of Finland's research unit are held on Thursdays at 10:30–11:45 in Rauhankatu 19, 3rd floor big meeting room (unless indicated otherwise). Seminars are held in English.

Research seminars are open to all economists (unless indicated otherwise). Please register in advance at research(at)bof.fi by noon of the preceding day. Visitors will be escorted from Rauhankatu 19 B (Kirjasto/Library) entrance to the seminar room 10 minutes before the seminar.