Abstract:
This research is aimed to develop CAMGEM (Chulalongkorn and Monash Universities General Equilibrium Model) which is a static CGE (Computable General Equilibrium) model of the Thai economy into a dynamic, intertemporal CGE model by developing investment behaviour in the model. Investors have the forward-looking behaviour with expected rates of return ranging from fixed expectation to perfect foresight. Solution method employed involves the construction of initial solutions from one base-year database, adjusting the data to be consistent with the equilibrium state of the model and projecting the economy scenario throughout the analysing period. The correctness of the models implementation is verified through simulations on the impacts of some policy changes on the Thai economy and industries. Two example policies are selected, real 10% government expenditure boosting and10% devaluation of Baht. Thailands input-output table of the year 1995 is used as the database. The results from the simulations show the differences between the short-run and the long-run projection, and their adjustment paths. Results from fixed expectation and perfect foresight also show some differences. However, the forward-looking behaviour of the investors does not affect the result in the long-run. The length of the adjustment period to the steady state of the economy depends on the sensitivity of the investors to adjust their investment level. Intertemporal CAMGEM can be more widely used than CAMGEM for assessing the impacts of economic policies on the Thai economy and industries.