This paper presents new evidence on how corporate payout policy responds to the differential between the tax burden on dividend income and that on accruing capital gains. It describes the construction of weighted average marginal tax rate series for the period since 1929, and it suggests that the enactment of the Job Growth of Taxpayer Relief Reconciliation Act of 2003 should raise the after-tax value of dividends relative to capital gains by more than five percentage points. The impact of this change on payout depends on the elasticity of dividend payments with respect to the after-tax value of dividend income relative to capital gains. Time series estimates suggest an elasticity of more than three, and imply that the recent tax reform could ultimately increase dividends by almost twenty percent.

The sharp decline in the stock prices of several firms at which employees held a large fraction of their 401(k) plan assets in company stock, including Enron, Global Crossing, Lucent, and Polaroid, has sparked a public-policy debate about investment options in 401(k) plans. At many large firms, particularly those with retirement saving plans that combine elements of an Employee Stock Ownership Plan (ESOP) with a traditional 401(k), a substantial fraction of defined-contribution retirement-plan assets are held in company stock. Such undiversified holdings are a source of concern because they raise the volatility of the retirement wealth for employees and expose some workers to the prospect of very small retirement values. Holding an undiversified position in employer stock may be particularly costly because of the potential correlation between company stock returns and the value of the worker’s human capital, which may depend on the company’s prospects. This paper reviews the extent of undiversified company-stock investments in 401(k) plans, evaluates the cost of such investments from an employee’s perspective, and discusses a range of policy actions that could address the excessive concentration of retirement plan assets.

We analyze stock trades made by individuals holding stock in both taxable and tax-deferred accounts. By comparing trades across these two types of accounts, we uncover a capital gains lock-in effect in taxable accounts. The lock-in effect is more pronounced for large stock transactions and for stocks held for at least 12 months. Over shorter horizons, the disposition effect outweighs the lock-in effect. Comparison of loss realizations in taxable and tax-deferred accounts yields evidence of tax-loss selling throughout the year. Effective accrual tax rates for stocks that experience substantial appreciation are substantially below the statutory tax rate on long-term gains.

Exchange traded funds (ETFs) are a new variety of mutual fund that first became available in 1993. ETFs have grown rapidly and now hold nearly $80 billion in assets. ETFs are sometimes described as more 'tax efficient' than traditional equity mutual funds, since in recent years, some large ETFs have made smaller distributions of realized and taxable capital gains than most mutual funds. This paper provides an introduction to the operation of exchange traded funds. It also compares the pre-tax and post-tax returns on the largest ETF, the SPDR trust that invests in the S&P500, with the returns on the largest equity index fund, the Vanguard Index 500. The results suggest that between 1994 and 2000, the before- and after-tax returns on the SPDR trust and this mutual fund were very similar. Both the after-tax and the pre-tax returns on the fund were slightly greater than those on the ETF. These findings suggest that ETFs offer taxable investors a method of holding broad baskets of stocks that deliver returns comparable to those of low-cost index funds.

This paper presents new information on the fraction of adjusted gross income, and of wages and salaries, that is reported by taxpayers in the top one half of one percent of the income distribution. This corresponds to roughly five hundred thousand households in the late 1990s. This paper relies on data from the Treasury's Individual Income Tax Model for the period 1960-1995. The definition of adjusted gross income is standardized, so that changes in the tax law do not affect the measured concentration of AGI. The results suggest that the share of AGI reported by the highest income households increased significantly between the early 1980s and the mid-1990s, with most of the increase taking place in the years immediately following the Tax Reform Act of 1986. While we find some evidence of transitory changes in the concentration of income around major tax changes, which may be the result of income retiming by high income taxpayers, re-timing does not seem to explain most of the changes since 1986.

Contributions to 401(k) plans are now the most important form of retirement saving. Since 401(k) plans were introduced in the early 1980’s, they have expanded rapidly and continuously. By 1998, roughly half of all households were eligible to participate in 401(k) plans, and more than 36 million workers made contributions to these employer-provided saving plans. In 1995, the last year for which the U.S. Department of Labor has released definitive data, 401(k) contributions amounted to $87.4 billion, or 55 percent of all contributions to employer-sponsored pension plans. The level of contributions, and their share of all pension contributions, is probably significantly higher today. The spread of 401(k) plans is the most important indicator of the move to personal retirement saving. In 1980, almost 92 percent of pension-plan contributions were to traditional employer-provided plans, and about 64 percent of these contributions were to conventional defined-benefit plans. Today, almost 60 percent of contributions are to personal retirement accounts, including 401(k), IRA, and Keogh plans. Including employerprovided, non-401(k) defined-contribution plans, over 76 percent of contributions are to plans that are controlled in large measure by individuals. These individuals make participation, contribution, asset-allocation, and withdrawal decisions. In this paper, we describe the likely importance of 401(k) assets for future older Americans and the effect of investment decisions on asset accumulation. We also examine the extent to which retirement assets may be affected by several decisions: preretirement withdrawals, management fees and expenses, contribution rates, and early retirement. Our analysis focuses on 401(k) saving, but applies more broadly to other forms of individual retirement saving.

New Evidence on the Money's Worth of Individual Annuities by Olivia S. Mitchell, James M. Poterba, Mark J. Warshawsky and Jeffrey R. Brown. Published in volume 89, issue 5, pages 1299-1318 of American Economic Review, December 1999