[Using a large sample of cross-border mergers, we measure the effect of a change in location on systematic risk. When a target firm's location moves, a large part of its systematic risk switches from being related to its home equity market to that of the acquirer. On average, the change in betas is equivalent to an excess shift of about 0.5 in the target's beta from its home market to that of the acquirer. We test whether the change in systematic risk can be explained by fundamental factors related to changes in the operations of the firm or merger synergy and find that it cannot.]

This paper investigates the impact of demographic shocks on optimal decisions about saving, life insurance, and, most centrally, asset allocation. The analysis indicates that marital-status transitions can have important effects on optimal household decisions, particularly in the cases of widowhood and divorce. Children also play a fundamental role in portfolio choice; in addition to leading to substantially different average allocations, they also have strong interaction effects with changes in marital status. Panel data evidence on stockholding suggests that changes in marital status and children matter empirically as well, but not always in the manner that the model predicts. The Author 2009. Published by Oxford University Press on behalf of The Society for Financial Studies. All rights reserved. For Permissions, please e-mail: [email protected]., Oxford University Press.

[This paper investigates the impact of demographic shocks on optimal decisions about saving, life insurance, and, most centrally, asset allocation. The analysis indicates that marital-status transitions can have important effects on optimal household decisions, particularly in the cases of widowhood and divorce. Children also play a fundamental role in portfolio choice; in addition to leading to substantially different average allocations, they also have strong interaction effects with changes in marital status. Panel data evidence on stockholding suggests that changes in marital status and children matter empirically as well, but not always in the manner that the model predicts.]

Using a large sample of cross-border mergers, we measure the effect of a change in location on systematic risk. When a target firm's location moves, a large part of its systematic risk switches from being related to its home equity market to that of the acquirer. On average, the change in betas is equivalent to an excess shift of about 0.5 in the target's beta from its home market to that of the acquirer. We test whether the change in systematic risk can be explained by fundamental factors related to changes in the operations of the firm or merger synergy and find that it cannot. The Author 2009. Published by Oxford University Press on behalf of The Society for Financial Studies. All rights reserved. For permissions, please e-mail: [email protected], Oxford University Press.

This article examines the effect of household debt on investment decisions. We alter a simple portfolio choice model to allow households to retire outstanding debt and realize a risk-free rate of return equal to the interest rate on that debt. Using the Survey of Consumer Finances, we find that households with mortgage debt are 10 % less likely to own stocks and 37 % less likely to own bonds compared to similar households with no mortgage debt. We calculate the costs of nonoptimal investment in the presence of various forms of household debt. We find that 26 % of households should forgo equity market participation on account of the high interest rates they pay on their debt. (JEL D03, D12, D14, G11, G12) This article examines the effect of debt on the household portfolio. Whereas standard portfolio choice models focus primarily on the asset side of the house-hold balance sheet, we examine the effects of liabilities on investment deci-sions. Throughout the life cycle, many households accumulate debt from a variety of sources including mortgages, student loans, and consumer debt. Re-tirement of this debt offers households a return equal to the interest rate on their loan, which is almost always greater than the return to investing in the

We examine how long-run consumption risk arises endogenously in a standard pro-duction economy model where the representative agent has Epstein-Zin preferences. We show that even when technology growth is i.i.d., optimal consumption smoothing induces long run risk- highly persistent variation in expected consumption growth. As a consequence, the model can account for a high price of risk although both consump-tion growth volatility and the coe ¢ cient of relative risk aversion are low. The asset pricing implications of endogenous long-run risk depend crucially on the persistence of technology shocks and investorspreference for the timing of resolution of uncertainty.

[We examine how long-run consumption risk arises endogenously in a standard production economy model where the representative agent has Epstein-Zin preferences. We show that even when technology growth is i.i.d., optimal consumption smoothing induces long-run risk—highly persistent variation in expected consumption growth. As a consequence, the model can account for a high price of risk, although both consumption growth volatility and the coefficient of relative risk aversion are low. The asset pricing implications of endogenous long-run risk depend crucially on the persistence of technology shocks and investors' preference for the timing of resolution of uncertainty.]

[We develop a life-cycle consumption and portfolio choice model in which households have nonhomothetic utility over two types of goods, basic and luxury. We calibrate the model to match the cross-sectional and life-cycle variation in the basic expenditure share in the Consumer Expenditure Survey. The model explains the degree to which the portfolio share in risky assets rises in wealth in the cross-section of households in the Survey of Consumer Finances. For a given household, the portfolio share can fall in response to an increase in wealth, even though the model implies decreasing relative risk aversion.]

[We model how three groups—insiders in existing public companies, institutional investors, and entrepreneurs planning to take firms public—compete for influence over politicians setting the level of investor protection. We identify factors that push toward suboptimal investor protection, including corporate insiders' ability to use public firms' assets to influence politicians, and institutional investors' inability to capture fully the value of investor protection for outside investors. Entrepreneurs and public firms' interest in raising equity capital does not fully eliminate the distortions arising from insiders seeking to extract rents from capital in place. Our analysis produces many testable predictions concerning how investor protection varies over time and around the world.]

[This article examines the effect of household debt on investment decisions. We alter a simple portfolio choice model to allow households to retire outstanding debt and realize a risk-free rate of return equal to the interest rate on that debt. Using the Survey of Consumer Finances, we find that households with mortgage debt are 10% less likely to own stocks and 37% less likely to own bonds compared to similar households with no mortgage debt. We calculate the costs of nonoptimal investment in the presence of various forms of household debt. We find that 26% of households should forgo equity market participation on account of the high interest rates they pay on their debt.]