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+The age of Ph.D. obtained and paper productivity afterwards

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This is a SciREX Center Working Paper that investigates the relationship between the age Ph.D. is obtained and the number of papers produced after obtaining Ph.D. 

English Title

Young idler an old beggar

Japanese title

博士号取得前の状況が取得後の論文生産性に与える影響

Author

Hiromichi KASAGI, Naoto TAJIMA, Akira YAMAGUCHI, Yasushi HARA

Keywords

Scientific productivity, STI policy, Ph.D. Matthew Effect

Date of publication

October 1, 2018

Publisher

Science, Technology and Innovation Policy Research Center

National Graduate Institute for Policy Studies (GRIPS)

Series No.

2018-#2

URL

https://scirex.grips.ac.jp/resources/Kasagi%2C%20et%20al.%2C%20SciREX_WP%2C%202018.pdf

Series name

SciREX Working Papers

Abstract

What helps to increase paper productivity?  Obtaining Ph.D. in an early stage of your life leads more production of papers? To respond to these questions, this study analyzed the relationship between the ages scientists receive Ph.D. and the number of papers produced afterwards. The result tells that even if one obtains Ph.D. in middle age, the paper productivity afterwords is high enough. This means that the age of obtaining Ph.D. does not matter as to the paper productivity afterwards. 



This research implies that the age limit set for training scientists may not be a valuable parameter to train excellent scientists. The analysis also found that experiences at more than a single university or research institution can be a valuable factor to produce excellent research results.

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