STAPLE FOOD WATER TOTAL FACTOR PRODUCTIVITY GROWTH TOWARDS FOOD SECURITY IN WEST TIMOR, INDONESIAJonathan E. Koehuan, Bambang Suharto, Gunomo Djoyowasito and Liliya D. Susanawati
One of the prominent ways to boost food security in semi arid region like West Timor where water is scarce is by the increasing of food water productivity or to increase food production with less water. This study made a remarkable contribution with taking into consideration food water TFP growth with its components of efficiency change and technology change. This study furthermore focused on the estimation of food water productivity, the estimation of food water TFP growth and the implication to food security. For doing so, 16 years secondary balanced panel data of climate and non climate data were used. We applied FAO Penman-Monteith method in estimating crop water use as the denominator of water productivity subsequently stochastic frontier analysis- Malmquist index in estimating food water TFP growth and its decomposition. The results showed that during 2000-2015, food water productivity in terms of production per crop water use showed a fluctuated trend, with averaging WPPaddy, WPCorn and WPFood which is aggregated of paddy and corn were 0.459 kg rice/m3, 0.455 kg equivalen rice /m3 and 0.458 kg rice/m3, respectively.Averaging TFP growth of WPFood was 1.015 respectively. It is important to note that the TFP growths were mostly influenced by technology growth rather than efficiency growth. The municipal of Kupang had the higher TFP growth compared to other districts. Therefore the improvement in production technology, better access to production input, and enhancing farms management are the key to sustainable food security in West Timor.
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