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An Analysis of Supply Response for Natural Rubber in Cambodia


  • Samin Much

    (Kampong Cham National School of Agricaulture, Kampong Cham Province, Cambodia)

  • Sopin Tongpan

    () (Faculty of Economics, Kasetsart University, Bangkok, Thailand)

  • Prapinwadee Sirisupluxana

    () (Faculty of Economics, Kasetsart University, Bangkok, Thailand)


In this paper, a partial adjustment and adaptive expectation mechanism are applied to analyze the supply response of natural rubber in Cambodia. The planted area and average yield are set as the supply response. Data from 1990-2008 were used in the analysis. The factor that had the most positive influence on the supply was rubber prices followed by rainfall and lagged dependent variables. However, the supply negatively responded to prices of alternative crops. In terms of elasticities of rubber supply with respect to its own price, they were inelastic in the short run and elastic in the long run. The long-run supply elasticities were relatively greater than the short run by five to twenty times. That indicates rubber farmers adjust their production planning in the long run more frequently than in the short run.

Suggested Citation

  • Samin Much & Sopin Tongpan & Prapinwadee Sirisupluxana, 2011. "An Analysis of Supply Response for Natural Rubber in Cambodia," Applied Economics Journal, Kasetsart University, Faculty of Economics, Center for Applied Economic Research, vol. 18(1), pages 31-43, June.
  • Handle: RePEc:aej:apecjn:v:18:y:2011:i:1:p:31-43

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    natural rubber; supply response; Cambodia;

    JEL classification:

    • C12 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Hypothesis Testing: General
    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • D24 - Microeconomics - - Production and Organizations - - - Production; Cost; Capital; Capital, Total Factor, and Multifactor Productivity; Capacity
    • Q11 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Aggregate Supply and Demand Analysis; Prices


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