Dalia Ghanem, University of California, Davis
Effortless Perfection: Do Chinese Cities Manipulate Air Pollution Data?"
Date and Location
Wednesday, October 23, 2013, 4:10 PM - 5:40 PM
ARE Conference Room, 2102 Social Sciences and Humanities
It is alleged that some Chinese cities manipulate their air pollution data to comply with the air quality standards set by the central government of China. This paper tests this hypothesis by using a unique data set. First, we employ a discontinuity test to detect the cities that reported dubious pollution data around the cutoff for "blue-sky days." Then, we propose a panel matching approach to identify the conditions under which irregularities may occur. Over the period 2001-2010, 55% of cities reported dubious PM10 pollution levels that led to a discontinuity at the cutoff. Suspicious data reporting tends to occur on days when the potential manipulation is least detectable. Our findings indicate that the official daily air pollution data are not well behaved, which provides suggestive evidence of manipulation.
Contact Us2116 Social Sciences and Humanities
University of California, Davis
One Shields Avenue
Davis, CA 95616
Main Office: 530-752-1515
DeLoach Conference Room: 530-752-2916
Main Conference Room: 530-754-1850
Student Advising Services: 530-754-9536