Political preferences and stock markets
研究了欧盟91次选举中政治偏好变化对股市波动的影响，发现选举不确定性会加剧股市波动，选举结果与预期的差异也会影响市场。
The aim of this paper is to investigate the sensitivity of stock markets to election uncertainty and election shock. The analysis employs both fixed effect modelling approach and event study methodology, and utilizes a unique dataset of polling results measuring political preferences over 91 elections in EU countries. We show that election uncertainty induced by changes in political support significantly affects the volatility of stock markets in the pre-election period. Stock volatility also increases in post-election periods. We find that the difference between the outcome of the election and the expected one contributes to the magnitude of election shock, which influences stock markets. These suggest that the accuracy of pre-election polls can be used by market participants and academics as a proxy for market expectations. Our findings have also important implications for optimal investing strategies around elections and are of interest to fiscal policy makers and regulators of pollsters.