... shown in Figure 6. 2 By defining the appropriate data ranges for X and Y variables, Equations 6. 2, 6. 3, 6. 5, and 6. 6 can be all fitted by OLS linear regressions in Excel Note that Equations 6. 5 and 6. 6 ... recovered by taking the reverse of logarithm, i.e., a = eA Equations 6. 5 and 6. 6 can also be estimated by linear OLS regressions In regressions for Equations 6. 3 and 6. 6 containing the term lnr, ... Equation 6. 6 is the log-transform of power Equation 6. 4 The intercept A in both Equations 6. 5 and 6. 6 is just the log-transform of constant a (i.e., A = lna) in Equations 6. 1 and 6. 4 The value of a...