Taken all test statistics together,the instruments are found to be valid and relevant (having considerable explanatory power).The null hypothesis of the endogeneity test is that consumption and squared consumption are exogenous. I fail to reject exogeneity for all three equations. The p-values of the endogeneity test are 0.6243 (LS), 0.0990 (H), and 0.6863 (D), respectively. Hence, it is relatively safe not to instrument consumption in these equations and to rely on table 4 for causal estimates