3.6 Data sources, Type and Period
The study utilised annual data for the period 1980 to 2015. Data on actual producer price of tobacco, actual tobacco output and population of active tobacco growers were sourced from
TIMB (2014) publications. Data for maize prices was obtained from FAO (2012) statistical yearbook. Information on sales quotas was obtained from Townsend and Thirtle (1997).
3.7 Conclusion
In this chapter the tobacco supply response model was constructed and work done by Leaver
(2004) was used as a framework for building the econometric model. Variables used were selected and justified according to the existing literature and data availability. In addition, the model diagnostic tests and the estimation procedures were briefly outlined. The succeeding chapter will focus on estimating the model, presenting and interpreting the results.
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