This document contains the results of a regression analysis with lnC as the dependent variable and lnI, lnL, lnH, and lnA as independent variables. The summary shows that the coefficients of lnI, lnL, and lnA are statistically significant, while the coefficient of lnH is not statistically significant. Residual analysis found evidence of positive autocorrelation. The Park test showed no evidence of heteroscedasticity in the relationship between residuals and lnH.