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Yoshiro Miwa & J. Mark Ramseyer, The Fable of the Keiretsu, and Other Tales of Japan we Wish were True (Harv. L. Sch. L. & Econ. Res. Paper Series, Discussion Paper No. 471, Apr. 2004).

Abstract: Most of what we collectively think we know about the Japanese economy is urban legend. In fact: - The keiretsu do not exist, and never did. An entrepreneurial research institute in the 1950s created the rosters to sell to Marxist economists looking for the monopoly capital that their theory told them would dominate their bourgeois capitalist world. Western scholars hoping for examples of culture-specific forms of economic organization then brought them back to the U.S. - The zaibatsu did not succeed pre-war because they bought politicians, exploited the poor, or manipulated disfunctional capital markets. They succeeded for all the usual varied reasons a few firms succeed in any modern economy. They acquired the (pejorative) zaibatsu label because they happened to be thriving when muckraking journalists in the 1920s and 30s came looking for someone to blame for the depression. - Japanese firms have no main bank system, and never did. Economists popularized the idea as an anecdote on which to peg their mathematical models, and non-economists use it (like the keiretsu) as yet another putatively culture-bound economic phenomenon. - Japanese firms are neither short of outside directors nor badly governed. The charges simply represent yet another variant on populist journalism. Like firms in other competitive capitalist countries, Japanese firms survive only if they adopt governance mechanisms appropriate to the markets within which they must compete. - The Japanese government never seriously guided or intervened in the Japanese economy. When the economy boomed, politicians and bureaucrats did take credit. They had created the success through their own far-sighted leadership, they claimed. Marxist scholars dominated Japanese social science departments, and they were not about to suggest instead that market competition might account for the success. Happy as they were to find an example of successful government intervention, neither were most Western scholars of Japan.