@@abduislam23 b3=b4 is the same as b3-b4=0 and .8-3.1=-2.3. b1 is not necessarily the intercept. It is just the first element of the coefficient vector, or the estimate in the first row.
Make a full video to make Panel and time-series data of WDI............... All countries and all variables...We are wasting too much time on traditional manual time.
