We exploit a unique panel of 75 metro areas (‘cities’) across the globe and employ a cityfixed effects model to identify the determinants of within-city changes in air pollution concentration between 2005 and 2011. Increasing car and population densities significantly reduce air pollution...

Payments for environmental services (PES) schemes in developing countries face trade-offs between environmental and development objectives. This tension is inherent in cost effective direct PES since, by their very nature, they limit transfers to recipients. However, where recipients of PES are...