Eberhart discusses Japanese corporate governance reforms

A multitude of corporate governance reforms were enacted in Japan from 1997-2005. As a result of one of those reforms, beginning in 2003 Japanese companies had the option of choosing a committee system of corporate governance, one partially modeled on the American system, rather than the auditor system.

On May 14, SPRIE Researcher Robert Eberhart spoke at a SPRIE seminar about his current research assessing the effect of the Japanese reforms and the question of whether the corporate system in Japan will ultimately be converging with the Western model.

We compared two groups of committee system and auditor system companies and found that the firms using committee system governance, the so-called American model, were significantly valued higher as measured by Tobin's q--thirty- and forty-percent higher.

In researching the performance of Japanese companies under the committee system, Eberhart's current study has found significantly (30%-40%) higher Tobin's q scores for those companies following the committee system over those following the auditor system. This observation seems independent of other financial variables differentiating these companies. The research focused on 63 companies in the pharmacueuticals, electronics, and machine industries.

Tobin's q is the ratio of a firm's market cap to the replacement value of its assets. Since the change in Tobin's q was immediate, based on monthly data, this suggests a change in market evaluation, Eberhart noted, since the asset value would not have changed so quickly.

One possibility, Eberhart ventured, is that by opening themselves up to the committee system, management is indicating a confidence in the veracity of the firm's fiscal monitoring system, and the market is responding to that confidence.

Eberhart concluded by noting that these results are preliminary and further research is necessary to precisely determine the nature of these performance differences.