The agricultural output is deflated with the base year 2000. There is no price index at the prefectural level. For this reason we use the provincial price indices to deflate the nominal series. Hence, all the prefectures within each province are deflated by the same index. Although suboptimal, this helps to preserve the comparability in the two estimations. The reviewer rises a very useful point that we initially ignored. We now better specify the required items on agricultural labor productivity in the text.
Besides, the authors must define better the data how the agricultural labor productivity was calculated. The agricultural output is in current or constant prices? This could have strong implications in one case or another, especially in the first case. The context of this paper consists in growing agricultural prices, especially in the second half of this decade in the world panorama. So, if the agricultural output is in current prices, the growing prices will affect deeply the results. It must be clearer.