金融不安定性仮説の意義と限界 : アメリカ・ラディカル派のミンスキー論(<特集>ハイマン・ミンスキーの経済学 金融危機をどう乗り越えるか)

抄録

Many people view the outbreak of the severe financial crisis of 2007-8 as confirming Minsky's "financial instability hypothesis". Nevertheless, those who interpret this financial crisis as a "Minsky crisis" don't get a majority even among heterodox economists who believe that the capitalist growth process is inherently unstable. One of the reason is that there are still various theories of economic crisis in the strands of heterodox economics. Therefore, heterodox economists' assessments on Minsky's theory aren't also uniform. Some indicate the limitations of Minsky's perspective. For example, many Marxian economists often point out that Minsky finds the source of instability of a capitalist economy exclusively in the financial sector of the economy and he pays little attention to the contradictions and crises of capitalist economies that result from factors located in the real sector. But economic crises don't necessarily always occur by only one cause. In many case, crises occur because of the complex interaction of plural factors. Further, the form of a crisis may depend on the institutional structure of the economic system at a particular time and place. In order to grasp the nature of economic crises that occur taking various forms each time, we need a comprehensive theoretical framework that integrates perspectives of schools of heterodox economics. We will be able to construct such a framework for the first time by the animated cross-fertilization between various strands of heterodox economics. Since their advent in the late 1960s, American radical economists have done a lot of valuable attempts toward a synthesis of heterodox economics. They have inherited the intellectual capital of Marxian, Keynesian and American institutional schools, and sought to construct an alternative framework to the neoclassical orthodoxy through the integration of those ideas. In addition to the analysis of the real aspect of the economy, they have also achieved many rich results in the analysis of financial instability of a capitalist economy. This paper reviews American radical economists' critical assessments of Minsky's financial instability hypothesis, and examines their interpretations of the current crisis. With these considerations, I explore the possibility of a synthesis of heterodox theories of economic crisis.