Question 3 3.1 Consider the next equation that attempts to identify determinants of corporate tax avoidance: Tax Avoidance; = Bo + B, CSR; + B2 Cash; + u; Where, Tax Avoidance : the level of tax avoidance of firm i. CSR;: the corporate social responsibility of firm i. Cashi: the level of cash flows of firm i. Critically analyse what multicollinearity is and what omitted variable bias is in an estimated model. Give an example and explain each of these problems using the above model. If you had to choose between multicollinearity and omitted variable bias, which problem you would like to avoid in your estimations and discuss why