Kernel Density Estimation Based on Grouped Data

Kernel Density Estimation Based on Grouped Data
Author :
Publisher : International Monetary Fund
Total Pages : 36
Release :
ISBN-10 : 9781451870411
ISBN-13 : 1451870418
Rating : 4/5 (11 Downloads)

Book Synopsis Kernel Density Estimation Based on Grouped Data by : Ms.Camelia Minoiu

Download or read book Kernel Density Estimation Based on Grouped Data written by Ms.Camelia Minoiu and published by International Monetary Fund. This book was released on 2008-07-01 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: We analyze the performance of kernel density methods applied to grouped data to estimate poverty (as applied in Sala-i-Martin, 2006, QJE). Using Monte Carlo simulations and household surveys, we find that the technique gives rise to biases in poverty estimates, the sign and magnitude of which vary with the bandwidth, the kernel, the number of datapoints, and across poverty lines. Depending on the chosen bandwidth, the $1/day poverty rate in 2000 varies by a factor of 1.8, while the $2/day headcount in 2000 varies by 287 million people. Our findings challenge the validity and robustness of poverty estimates derived through kernel density estimation on grouped data.


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