Problem set 1

Answer 1

1.1

Yet to answer

1.2

## 
## ========================
##                 Model 1 
## ------------------------
## lifeexpectancy  -1.34 **
##                 (0.51)  
## ------------------------
## R^2              0.96   
## Adj. R^2         0.92   
## Num. obs.       94      
## RMSE             0.27   
## N Clusters      47      
## ========================
## *** p < 0.01; ** p < 0.05; * p < 0.1

1.3

## 
## ================================================
##                 Asia    Latin America  Europe   
## ------------------------------------------------
## lifeexpectancy  -5.73   -0.29           2.37 ***
##                 (5.22)  (0.66)         (0.40)   
## ------------------------------------------------
## R^2              0.70    0.95           0.99    
## Adj. R^2         0.31    0.89           0.97    
## Num. obs.       22      34             38       
## RMSE             0.48    0.22           0.12    
## ================================================
## *** p < 0.01; ** p < 0.05; * p < 0.1

1.4

1.5

## 
## =======================
##                 Model 1
## -----------------------
## lifeexpectancy   0.73  
##                 (0.48) 
## -----------------------
## R^2              0.80  
## Adj. R^2         0.79  
## Num. obs.       94     
## RMSE             0.44  
## =======================
## *** p < 0.01; ** p < 0.05; * p < 0.1

1.6

Yes, we can group by initialincome.

1.7

Yet to answer

Answer 2

1(a)

1(b)

2(a)

2(b)