2.6.4.0 SUMMARY In this unit, the specification of regression variables at a preliminary skirmish is discussed. In general, an introductory opportunity is created for the students to know that the specification of a regression model should be based primarily on theoretical considerations rather than what maybe obtainable in practice. 2.6.5.0 CONCLUSION The specification of regression variables at a preliminary skirmish was explained in this unit. And briefly made the students aware that this is one of the foundational econometrics topic that prepares the readers for intermediate econometrics. That is, specification of model is the first and most critical of the stages in regression analysis which students may use to identify functions and solve problems associated with all other topics discussed in this module.