This paper uses unique data on daily air pollution concentrations over the period 2001–2010 to test for manipulation in self-reported data by Chinese cities. First, we employ a discontinuity test to detect evidence consistent with data manipulation. Then, we propose a panel matching approach...

This review critically looks at the theoretical and empirical foundations of positive mathematical programming and its evolution in the past decade or so. We show how the need to model new empirical phenomena has induced the literature to rethink model specifications and to address new questions...

This article provides a methodology to exactly calibrate land-constrained programming models of agricultural supply against supply elasticities using generalized constant-elasticity-of-substitution, crop-specific production functions. We formally derive the necessary and sufficient conditions...

We exploit cross-sectional repair cost and emissions data to estimate an abatement cost schedule for vehicles participating in a program in California's San Joaquin Valley to reduce tailpipe emissions. We find that 1995 and older model year vehicles have a lower marginal abatement cost than...

Not as much abatement as has been presumed. Smog check programs aim to curb tailpipe emissions from in-use vehicles by requiring repairs whenever emissions, measured at regular time intervals, exceed a certain threshold. Using data from California, we estimate that on average 41% of the initial...