SSDI beneficiaries lose their entire cash benefit if they perform work that is substantial gainful activity (SGA) after using Social Security work incentive programs. The complete loss of benefits might be a work disincentive for beneficiaries. We report results from a pilot project that replaces the complete loss of benefits with a gradual reduction in benefits of $1 for every $2 earned above an earnings disregard level. Beneficiaries who volunteered to participate in the project were randomly assigned to a group receiving the new program or to a control group. The policy led to a 25 percent increase in the percentage of beneficiaries with earnings above the annualized SGA amount, or $11,760 in 2009 dollars. It did not result in a reduction in benefit payments.

The question of how entrepreneurship relates to income mobility is cogent given the current public debate about the sources of income inequality and mobility in United States society. We examine how experience with entrepreneurship has affected an individual's place in the earnings distribution. Our basic tack is to follow individuals' positions in the income distribution over time, and to see how their mobility (or lack thereof) was affected by involvement with entrepreneurship.Our main finding is that for low-income individuals there is some merit to the notion that the selfemployed moved ahead in the earnings distribution relative to those who remained wage earners.On the other hand, for those at the upper end of the earnings distribution, those who became selfemployed often advanced less in the earnings distribution than their salaried counterparts.

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The Americans with Disabilities Act of 1990 (ADA) was the first federal disability-based anti-discrimination law that applied to a broad range of workers. Whereas some studies have focused on its impact on workplace accommodation, this is the first to do so while accounting for previous state anti-discrimination and Workers' Compensation laws. Using data from the Health and Retirement Study, the authors find that prior to the implementation of the ADA, employers were more likely to accommodate workers if their disability onset was work-related and hence likely to be covered by Workers' Compensation laws. State anti-discrimination laws significantly increased accommodations to workers whose disabilities were not work-related, effectively bringing their accommodation rates in line with workers whose disabilities were. Though implementation of the ADA increased accommodation for all workers, the authors point out that failure to account for pre-existing state anti-discrimination and Workers' Compensation laws will underestimate its effect.T he employment rate for working-age people with a disability is not only substantially lower than that of their counterparts without a disability, but relative to them it has fallen over time. 1 This long-run trend has occurred despite efforts by state and federal 1 See Houtenville et al. (2009) for the most recent evidence of this decline and the quality of the data on which it is based.