- 20 августа 2018, 15:49
- NBER (National Bureau of Economic Research)
We provide a unified framework for measuring bilateral exports of value added. We outline a general methodology that encompasses the measures introduced by Johnson and Noguera (2012) (value added consumed abroad) and Los et al. (2016) (value added in exports), to which we refer as VAX-C and VAX-D, respectively. In addition we suggest a novel third measure, VAX-P, which indicates the value added used abroad in the final stage of production. We show that they can all be derived with the method of hypothetical extraction in a general input-output model. This is helpful in comparing and contrasting their characteristics. As a corollary, we show that for VAX-C and VAX-P the sum of bilateral measures is equal to the corresponding aggregate measure, but that this is generally not true for VAX-D. We illustrate all measures with empirical examples computed on the basis of the World Input-Output Database. These indicators can found at www.wiod.org.
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