This paper finds that, concurrent with the rapid growing index investment in commodities markets since early 2000s, futures prices of different commodities in the US became increasingly correlated with each other and this trend was significantly more pronounced for commodities in the two popular...

We study rollover risk and collateral value in a dynamic asset pricing model with endogenous debt financing by extending the framework of Geanakoplos (2009) with a generic binomial tree and time-varying heterogeneous beliefs. Optimistic borrowers face rollover risk if the belief dispersion...

We use traded options on growth and value indices to test for clientele differences in risk preferences. Value investors appear to have exhibited a higher average level of risk aversion than growth investors for two different time periods in the late 1990's and early 2000's. We construct a model...

Pensions are widely thought to be attractive tax shelters which encourage saving for retirement. They allow people to save before-tax dollars and to compound investment returns without current taxation. However, the taxation of pension assets as they are distributed in retirement or as they pass...

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);...

This paper reconsiders the literature on tax options by examining the ability to defer net capital gains realizations within an equity portfolio whose constituents change over time. Unlike previous studies on the value of tax options, this paper examines after-tax returns to shareholders within...

Using panel data for nearly 1,000 companies during 1991 to 2000, this paper documents that the average share of participant's discretionary 401(k) contributions in company stock was almost 20 percent, and then relates this share to plan design features and firm financial characteristics. We find...

We study the relation between households' stock purchases and stock purchases made by their neighbors. A ten percentage point increase in neighbors' purchases of stocks from an industry is associated with a two percentage point increase in households' own purchases of stocks from that industry....

Using data on stock purchases individual investors made through a discount broker from 1991 to 1996, we study information diffusion effects the relation between household investment choices and those made by their neighbors. A ten percentage point increase in neighbors' purchases of stocks from...

This paper takes shareholder level taxes into account in determining the performance of growth and growth and income mutual funds over the 1963-1992 period. It ranks a sample of funds on a before and after-tax basis for investors in different income classes facing various investment horizons....