We propose an alternative measure of the long-term economic impact of mergers on firm value: post-acquisition changes in intrinsic value. Consistent with the literature on post-acquisition returns, the intrinsic value of merged firms decreases on average in the three years following deal completion, especially for firms with high initial intrinsic values. The loss of intrinsic value is driven primarily by decreases in expected earnings. Finally, using return decompositions, we find evidence that the poor post-acquisition stock returns documented in other studies can be attributed primarily to lost intrinsic value rather than changes in valuation levels.

Using bond downgrades as external shocks to life insurers’ asset risk, we document several findings of the impact of organizational structure and risk factors on investment risk taking. First, we find that mutual insurers and widely-held stock insurers are more likely to sell downgraded bonds than are closely-held stock insurers. Second, we find evidence that insurers are less likely to sell downgraded bonds that remain in the same rating class than bonds downgraded to a lower rating class. The result implies that insurers sell downgraded bonds mainly because of additional capital charge is imposed, not because of downgrade itself. In other words, risk factors in risk-based capital regulation do matter on life insurers’ investment risk taking. Finally, we find that life insurers might be reluctant to sell downgraded bonds at fire-sale prices during the 2008–2009 financial crisis.

In a comprehensive sample of mergers and acquisitions, we find a reference price effect: acquirers earn higher (lower) announcement-period returns when their pre-announcement stock prices are well below (near) their 52-week highs. This reference price effect is stronger in acquisitions of private targets, deals involving greater uncertainty, and acquirers with greater individual investor ownership, and it is reversed in the subsequent year. Further, acquirer reference prices affect bid premia and target announcement-period returns in deals with greater uncertainty in acquirer valuation. The overall evidence is consistent with investors irrationally using 52-week high prices as a measure of acquirer valuation.