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Table 2 Results (predictor weights V, donor weights W for main application and in training period, cross-validation criterion) obtained in different ways

From: Comparative politics and the synthetic control method revisited: a note on Abadie et al. (2015)

  

ADH

Min.

Max.

V weights

GDP per capita

23.0

0.0

23.0

 

Trade openness

48.5

48.5

63.1

 

Inflation rate

22.1

22.1

28.9

 

Industry share

0.0

0.0

1.3

 

Schooling

0.0

0.0

12.9

 

Investment rate

6.5

1.3

9.2

W weights main

UK

22.1

0.0

22.2

 

Austria

0.0

0.0

67.0

 

Denmark

0.0

0.0

17.7

 

Netherlands

11.9

0.0

29.3

 

Switzerland

37.6

0.0

37.8

 

Japan

28.3

22.8

45.9

W weights training

Austria

36.1

36.1

36.1

 

Switzerland

29.3

29.3

29.3

 

Japan

24.0

24.0

24.0

 

Australia

10.7

10.7

10.7

C-V criterion

RMSPE

84.7

84.7

84.7

  1. Notes: “ADH” stands for the results of Abadie et al. (2015), “Min.” and “Max.” denote minimal and maximal values, respectively, found under the condition that the corresponding predictor weights V lead to identical donor weights W in the training period. All numbers are given in percent, suppressing donors with weight less than 1%