Umetsu C, T Lekprichakul and U Chakravorty (2003). “Efficiency and Technical Change in the Philippine Rice Sector: A Malmquist Total Factor Productivity Analysis.” American J Agricultural Economics 85(4): 943-963.

Umetsu C, T Lekprichakul and U Chakravorty (2003). “Efficiency and Technical Change in the Philippine Rice Sector: A Malmquist Total Factor Productivity Analysis.” American J Agricultural Economics 85(4): 943-963.

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