Although efforts to relieve state tax burdens on poor families are not new, the nature of such tax relief changed in the 1990s. In previous decades, tax relief focused on sales or property taxes. More recently, states have enacted refundable income tax credits, particularly work-related...

New streams of data are being generated by a range of in-situ instrumentation, mobile sensing, and social media that can be integrated and analyzed to better understand urban activity and mobility patterns. While several studies have focused on understanding activity patterns and flows of people...

The authors write that state tax revenue has fallen as a share of the economy and that recent tax increases have not brought in adquate revenue. Tax increases enacted during the economic downturn are far fewer and smaller than the tax cuts enacted during the economic expansion of the 1990s. The...

The accurate estimation of workday length is essential to estimate total labor supply, and has a significant bearing on the assessment of labor productivity and worker well-being. Using probe request data from a 53 access-point, publicly-accessible Wi-Fi network in the Lower Manhattan district...

The authors point out that state tax systems have become more regressive in the past decade. Taxes in many states have become relatively more burdensome to low- and moderate-income families and relatively less burdensome on the affluent than they were before the last recession, the authors say....

Most emergency medical services (EMS) systems send patients to the closest hospitals. This long-standing principle, while maximizing patient welfare in usual times, can lead to hospital overloading and negative patient outcomes during unusual EMS demand shifts caused by events such as the...

The authors say the states will lose revenue if they conform to the part of the American Job Creation Act of 2004 that provides for a deduction for "qualified production activities." The authors suggest that the states consider decoupling from that provision