I'm going to use a stock market analogy to work out the costs of manufacturing liquidity premia. In addition to paying dividends and providing price appreciation, stocks provide an amenity flow in the form of expected exchangeability , or liquidity. Like any other consumption good & service, the provision of such an amenity requires an outlay by the supplier. In the same way that a widget producer won't sell widgets below marginal cost, the marginal seller of stock, the issuing firm, won't manufacture new liquidity if the cost of production exceeds the benefits. Say that a firm can hire an entire investor relations department for next to no cost. The IR team, full of eager promoters, will double the price that the marginal investor is willing to pay for the liquidity services thrown off by the firm's stock. They go about improving the stock's liquidity services by evangelizing the firm's "story", thereby widening the base of investors who deal in t...