“…In fact, key methodological choices such as the coverage of price surveys (urban but also rural), the weighting schemes of price indices, the calibration of productivity in services or the valuation of imports and exports, may have a heavy impact on the results (see Deaton and Heston, 2010;Feenstra et al, 2013). In fact, key methodological choices such as the coverage of price surveys (urban but also rural), the weighting schemes of price indices, the calibration of productivity in services or the valuation of imports and exports, may have a heavy impact on the results (see Deaton and Heston, 2010;Feenstra et al, 2013).…”