Abstract
AbstractThis study analyzes the efficiency hypothesis for three major wine indices using different parametric and non‐parametric tests for the short and long‐term horizons. Based on monthly data over the period 2003–2019, our analysis identifies two main findings. First, in the short term, there is market inefficiency allowing for investment and diversification opportunities and a need for greater market transparency. Second, the spread between wine markets and financial markets can disappear in the long term, that is, there is a long‐run relationship that is relatively compatible with efficiency, except for the Bordeaux Legends 50 index. This implies greater efficiency and therefore better information and fewer investment and diversification opportunities.
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