This paper presents some suggestions for the specification of dynamic models. These suggestions are based on the supposed continuous-time nature of most economic processes. In particular, the partial adjustment model --or Koyck lag model-- is discussed. The refinement of this model is derived from the continuous-time econometric literature of Sims and Bergstrom.
We find three alternative formulas for this refinement, depending on the particular econometric literature which is used. Two of these formulas agree with an intuitive example. In passing, it is shown that the continuous-time models of Sims and Bergstrom are closely related. Also the inverse of Bergstrom’s approximate analog has been introduced, making use of engineering mathematics.
Followed by "Error-correction modelling in discrete and continuous time" (Economics Letters, 2008), with Philip Hans Franses.
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Paper provided by CPB Netherlands Bureau for Economic Policy Analysis in its series CPB Discussion Papers with number
41.
Find related papers by JEL classification: C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation
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