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Estimating Short and Long Run Relationships: A Guide to the Applied Economist

By Bhaskara Rao


Many applied economists face problems in selecting an appropriate technique to estimate short and long run relationships with the time series methods. This paper reviews three alternative approaches viz., general to specific (GETS), vector autoregressions (VAR) and the vector error correction models (VECM). As in other methodological controversies, definite answers are difficult. It is suggested that if these techniques are seen as tools to summarize data, as in Smith (2000), often there may be only minor differences in their estimates. Therefore a computationally attractive technique is likely to be popular.Var, Cointegration, General to Specific Approach

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