According to a new study by GMI Ratings, bigger isn’t always better in the boardroom. In research for the Wall Street Journal, analysts found that large companies with the smallest boards produced substantially better shareholder returns. Based on a study of 400 companies with a market capitalization of at least $10 billion, those with small boards outperformed their peers by 8.5 percentage points, while those with large boards underperformed peers by 10.85 percentage points. The smallest bo |