“Using PDA consistency checks to increase the precision of profits and sales measurement in panels,” (w/ M Fafchamps, D McKenzie, and S Quinn) Journal of Development Economics, May 2012, Vol. 98(1), pp. 51-57.
“Measuring Microenterprise Profits: Must we ask how the sausage is made?,” (w/ S de Mel and D McKenzie), Journal of Development Economics, January, 2009, Vol 88, No. 1, pp. 19-31.