From January 2011 through March 2018, the Bank of Japan purchased equity index exchange-traded funds (ETFs) worth about 3.5% of GDP. Identification of the effect of central bank ETF purchases on stock valuations and corporate responses is via differently-weighted and changing stock indices. BOJ purchases lift valuations, increase share issuances, and increase total assets. On average, the latter increase is due to cash and short-term securities rather than capital investment. However, firms with worse corporate governance do increase capital investment. These findings suggest central bank equity purchases are a problematic tool for stimulating economic growth through high broad-based private-sector corporate investment.

Dynastic-controlled firms are led by founding-family CEOs while the family owns an insignificant share of equity (defined as less than 5%). They represent 7.4% of listed firms in post-war Japan, include well-known firms such as Casio, Suzuki, and Toyota, and are often grouped with widely held firms in the literature. These firms differ in key performance measures from both traditional family firms and non-family firms, and evolve from the former as equity-financed growth dilutes family ownership over time. In turn, the transition from dynastic control to non-family status is driven by a diminution of family legacy and talent.