After you estimate a regression and have your OLS estimates,you want to know what conclusions can be drawn from your results. At the very start of the process, you selected the variables in your model based on your knowledge of economic theory along with a healthy dose of common sense,
and now that you’ve obtained results, what do they suggest about your hypothesized relationships? What is the probability that results like the ones you produced were the result of chance? In order to address these questions, you need to test the individual significance of your regression
coefficients.