New rice technology and comparative advantage in rice production in the Philippines
评估了1966年以来菲律宾水稻生产的比较优势变化，发现1979年因抗病虫害水稻品种推广而显著提升，但1986年后因价格下跌、产量停滞和成本上升而逐渐丧失，至1990年完全失去优势。
The aim of this study is to assess the comparative advantage in rice production in the Philippines for the past three decades since 1966. We have found that the country gained sharp improvement in comparative advantage in rice production in 1979, when yield rose remarkably due to the diffusion of pest‐ and disease‐resistant modern rice. Beginning in 1986 however, the country appears to have slowly lost its comparative advantage due to the decline in rice prices, stagnation in rice yield and rising cost of domestic factors. By 1990, the country completely lost its comparative advantage in rice production.