James Mahon

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  • Matthew Gentzkow, Jesse M Shapiro, Michael Sinkinson, Mike Abito, Patrick Dejarnette, Yao Lu +13 others
  • 2009
We use new data on entries and exits of US daily newspapers from 1869 to 2004 to estimate effects on political participation, party vote shares, and electoral competitiveness. Our identification strategy exploits the precise timing of these events and allows for the possibility of confounding trends. We find that newspapers have a robust positive effect on(More)
We estimate the effect of temporary tax incentives on equipment investment using shifts in accelerated depreciation. Analyzing data for over 120,000 firms, we present three findings. First, bonus depreciation raised investment 17.3 percent on average between 2001 and 2004 and 29.5 percent between 2008 and 2010. Second, financially constrained firms respond(More)
  • Gustavo A Flores-Macías, John Bailey, Fredy Barrero, Marcelo Bergman, Jorge Domínguez, Tasha Fairfield +15 others
  • 2013
Governments across the developing world in general, and Latin America in particular, tend to have difficulty in raising taxes among elites. Beginning in 2002, however, the Colombian government adopted a series of wealth taxes among the wealthiest taxpayers. Revenue from the tax was earmarked for security expenditures and represented about 1% of GDP. Drawing(More)
A large theoretical literature predicts that housing has substantial e¤ects on …nancial markets, but empirical evidence on these e¤ects remains limited. We estimate the causal e¤ect of changes in mortgages and home equity on portfolio allocations using two empirical strategies. First, we use two instruments –average house prices in an individual's state in(More)
OBJECTIVES To estimate the cost savings and health benefits in the UK NHS that could be achieved if human milk usage in the NICU was increased. METHODS A systematic review established the disease areas with the strong sources of evidence of the short, medium and long-term benefits of human milk for preterm infants as opposed to the use of formula milk.(More)
INTRODUCTION Functional gastrointestinal disorders (FGIDs) and FGID-related signs and symptoms have a fundamental impact on the psychosocial, physical and mental well-being of infants and their parents alike. Recent reviews and studies have indicated that FGIDs and related signs and symptoms may also have a substantial impact on the budgets of third-party(More)
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