Systematic risk for Chinese banks. Refer to the Applied Economics Letters (Vol. 27, 2020) study of the impact of internet finance on the level of systematic risk in the Chinese banking industry, Exercise 12.117. Recall that stepwise regression was employed to select five independent variables for predicting quarterly risk 1y2: level of development of internet finance 1x12, loan-to-deposit ratio 1x22, cost-income ratio 1x32, balance of deposits 1x42, and broad money supply 1x52. A sixth independent variable under consideration is gross domestic profit (GDP, x6). However, the researchers are concerned about a potential multicollinearity problem if GDP is added to the model. The correlation between GDP 1x62 and each of the five independent variables x1, x2, x3, x4, and x5 are -.65, -.81, .33, -.85 and .83, respectively. Do you detect a multicollinearity problem? Why or why not? If so, what is your recommendation regarding GDP 1x62?