We use a regulatory experiment (Regulation SHO) that relaxes short-selling constraints on a random sample of US stocks to test whether capital market frictions have an effect on stock prices and corporate decisions. We find that an increase in short-selling activity causes prices to fall, and...

Investment spending by US public firms is highly concentrated. The 100 largest spenders account for 60% of total capital expenditures and drive most of the variation in aggregate US investment. This high concentration creates a disconnect between the average public firm and macroeconomic...