The theory of market socialism, for the most part, was not based on an analysis of these market failures, and of the reasons why government might be … - Joseph E. Stiglitz

Intellectual property does not really belong in a trade agreement.

Informational constraints not only limit the ability of shareholders to control rent-seeking behavior on the part of top managers, they also limit the ability of top managers to control rent-seeking behavior on the part of their subordinates. How much of the time spent by a middle-level manager to prepare a report was absolutely necessary? To what extent was it devoted to acquiring information, of marginal value to the firm, but which would make that manager look relatively good compared to other managers? To what extent are the efforts and resources spent by a manager to cultivate a client really being directed to enhance that manager's job opportunities? Private and organizational objectives are intricately intertwined, and in many cases they are not conflicting. But at the margin they frequently are, and there seems little reason to doubt that private objectives frequently, perhaps usually, win out.

The Lange-Lerner-Taylor theorem, asserting the equivalence of market and market socialist economies, is based on a misguided view of the market, of the central problems of resource allocation, and (not surprisingly, given the first two failures) of how the market addresses those basic problems.