To create value, a firm must invest in projects that provide a return greater than the cost of capital. The cost of capital is not observed and its estimation requires assumptions on investors' consumption, savings, and portfolio decisions. We review the academic literature on firms' cost of...

I show that frequent batch auctions for stocks have the potential to reduce the severity of stock price crashes when they occur. For a given sequence of orders from a continuous electronic limit order book market, matching orders using one second apart batch auctions results in nearly the same...