Assignment 3.6 (4 points) Please further extend the regression by including so-called city xed effects, which means that you control for all price differences between municipalities. This in turn implies that you only compare price differences and differences in open space and safety within cities. Please estimate and report a regression with municipality xed effects in column (3) of Table 3. Hint: Use the variable mun and use the command areg to estimate this regression. You may also use the command regress and include dummies for each municipality, but this wl be much slower