Sensitivity of Yield and Input Demand Elasticities for Wetland Rice in Java

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Abstract
This study uses pooled time series data for wetland rice in Java to analyse the sensitivity of yield and input demand elasticities to differences in the specification of farmers' expectations, in alternative data sources and in the functional forms used in the estimation. The results show that yield and fertiliser input elasticities are less fragile than those of labour demand, which are quite sensitive to data and model specifications.