We develop a model of asset price bubbles based on the communication process between advisors and investors. Advisors are well-intentioned and want to maximize the welfare of their advisees (like a parent treats a child). But only some advisors understand the new technology (the tech-savvies); others do not and can only make a downward-biased recommendation (the old-fogies). While smart investors recognize the heterogeneity in advisors, naive ones mistakenly take whatever is said at face value. Tech-savvies inflate their forecasts to signal that they are not old-fogies, since more accurate information about their type improves the welfare of investors in the future. A bubble arises for a wide range of parameters, and its size is maximized when there is a mix of smart and naive investors in the economy. Our model suggests an alternative source for stock over-valuation in addition to investor overreaction to news and sell-side bias.

This paper examines the demand for directors’ and officers’ liability insurance (D&O insurance) by Chinese listed companies where controlling-minority shareholder incentive conflicts are acute due to the concentrated and split ownership structure. We hypothesize and find evidence that the incidence of seeking D&O insurance is positively related to the extent of controlling-minority shareholder incentive conflicts – a finding not previously documented in the literature. Using an event study, we find that the announcements of D&O insurance decisions in firms that engage in earnings management, and/or are controlled by a local government (such firms tend to have stronger incentives to tunnel), seem to have a negative wealth effect. In addition, the incidence of the D&O insurance decision is positively related to the proportion of independent directors and several litigation risk proxies. Therefore, the breakthrough in corporate governance and judicial reforms has created non-negligible perceived securities litigation risks in China.