Four social inventions that support markets are (1) __________, which specify the terms of exchange; (2) __________, which reduce the risk of entrepreneurs; (3) __________, which increases the...

Four social inventions that support markets are (1) __________, which specify the terms of exchange; (2) __________, which reduce the risk of entrepreneurs; (3) __________, which increases the profitability of inventions; and (4) __________ rules, which provide potential investors with reliable information about the financial performance of firms.