David, Géraldine; Oosterlinck, Kim; Szafarz, Ariane - In: Economics Letters 121 (2013) 1, pp. 23-25
Art is often used as an investment vehicle. Given the importance of market efficiency in finance, we use a large auction-based index to test whether the art market is weakly efficient. Evidence reveals that returns on artworks exhibit high positive auto-correlation. We attribute this result to...