More than a dozen years ago, the United States experienced a rash of high-profile accounting scandals. Now it's Japan's turn. Toshiba, one of the country's largest technology firms and an internationally respected brand, revealed that it had systematically overstated its operating profits to the tune of about $1.2 billion during a seven-year stretch. The company's chief executive officer, a number of other high-ranking executives and half of the company's board have resigned.

The Toshiba scandal isn't the first big case of Japanese corporate fraud to come to light in recent years. In October 2011, CEO Michael Woodford (no relation to the economist of the same name) blew the whistle on accounting fraud at his own company, optical equipment manufacturer Olympus. The fallout from that debacle is still unfolding.

The first takeaway from these scandals is that there will probably be more of them. The consensus is that they happened because of problems with Japanese corporate culture. In both cases, observers have blamed secretive and autocratic management styles by top executives, as well as the generally hierarchical, closed nature of Japanese business. But the real problem is corporate governance itself.