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Table 1. 

Summary statistics

Row No.VariablesNo. of observationsMeanStandard deviation
Article-level variables: 
1 Two-year impact 1,052 12.0 13.5 
2 Number of authors 1,052 2.33 0.94 
3 Year published 1,052 2012.7 2.81 
4 Month issued 1,052 7.12 3.46 
5 Dummy for theoretical articles 1,052 0.248 0.432 
Author-level variables: 
6 Women 2,453 0.156 0.363 
  Dummy variables for the continent of the author’s affiliated institution 
7 North America 2,453 0.709 0.455 
8 Europe 2,453 0.250 0.433 
9 Rest of the World 2,453 0.041 0.199 
  Dummy variables for the Quacquarelli Symonds rank of the author’s affiliated institution 
10 Top 10 2,453 0.280 0.433 
11 Ranked between 11 and 50 2,453 0.300 0.459 
12 Ranked below 50 2,453 0.419 0.493 
  Dummy variables for the years of post-PhD experience 
13 Below 10 years 2,453 0.465 0.499 
14 Between 11 and 25 years 2,453 0.379 0.485 
15 More than 25 years 2,453 0.119 0.323 
16 PhD Top 10 2,453 0.479 0.500 
17 No PhD 2,453 0.037 0.189 
18 Average citations at top five journals 2,453 5.72 7.46 
19 No publications at top five journals 2,453 0.383 0.486 
20 Average publications in the last 4 years 2,453 1.17 1.11 
21 Published in the top three theoretical journals 2,453 0.271 0.444 
Row No.VariablesNo. of observationsMeanStandard deviation
Article-level variables: 
1 Two-year impact 1,052 12.0 13.5 
2 Number of authors 1,052 2.33 0.94 
3 Year published 1,052 2012.7 2.81 
4 Month issued 1,052 7.12 3.46 
5 Dummy for theoretical articles 1,052 0.248 0.432 
Author-level variables: 
6 Women 2,453 0.156 0.363 
  Dummy variables for the continent of the author’s affiliated institution 
7 North America 2,453 0.709 0.455 
8 Europe 2,453 0.250 0.433 
9 Rest of the World 2,453 0.041 0.199 
  Dummy variables for the Quacquarelli Symonds rank of the author’s affiliated institution 
10 Top 10 2,453 0.280 0.433 
11 Ranked between 11 and 50 2,453 0.300 0.459 
12 Ranked below 50 2,453 0.419 0.493 
  Dummy variables for the years of post-PhD experience 
13 Below 10 years 2,453 0.465 0.499 
14 Between 11 and 25 years 2,453 0.379 0.485 
15 More than 25 years 2,453 0.119 0.323 
16 PhD Top 10 2,453 0.479 0.500 
17 No PhD 2,453 0.037 0.189 
18 Average citations at top five journals 2,453 5.72 7.46 
19 No publications at top five journals 2,453 0.383 0.486 
20 Average publications in the last 4 years 2,453 1.17 1.11 
21 Published in the top three theoretical journals 2,453 0.271 0.444 
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