An economist is trying to find out the amount of money a consumer spends in buying a car (the dependent variable) in relation to his income, wealth, interest rates, etc. (the independent variables.) The problem is that there is data only for those who actually purchase a car, and no data is available for consumers who do not purchase a car. The consumers are thus divided into two groups: the first group consists of w₁ consumers about whom data is available for the dependent variable as well as the independent variables, and the second group consists of w2 consumers about whom information is available only for the independent variables and not the dependent variable. What is the best way to analyze this situation?

MCQs on Econometrics, which is the use of statistical methods to develop theories or test existing hypotheses in economics or finance.