We observe the natural log of wage, denoted by lnw lnw , and dummy variables for regions. In the dataset, workers live in one of (1) Northeast, (2) Midwest, (3) South, and (4) West. Let =1 N = 1 if the worker lives in Northeast and =0 N = 0 otherwise, =1 M = 1 if the worker lives in Midwest and =0 M = 0 otherwise, =1 S = 1 if the worker lives in South and =0 S = 0 otherwise, and =1 W = 1 if the worker lives in West and =0 W = 0 otherwise. The regression estimate is lnw=10.60.150.210.08+. lnw = 10.6 0.15 M 0.21 S 0.08 W + e . Now if we estimate the regression lnw=0+1+2+3+ lnw = 0 + 1 N + 2 M + 3 S + using the same observations, what is the OLS estimate of 1 1