Richard Startz, "The Next Hundred Years of Growth and Convergence",
Journal of Applied Econometrics, Vol. 35, No. 1, 2020, pp. 99-113.

All data used in the paper were taken from Penn World Table 9.0 as
corrected on August 16, 2016. The sources are the Stata 14 file given
at http://www.rug.nl/research/ggdc/data/pwt/v90/pwt90.dta and the
Excel file given at http://www.rug.nl/research/ggdc/data/pwt/pwt-9.0.

The raw data used are given in ASCII format in pwt90.csv. The file
pwt90.xlsx is the original file as provided by the Penn World Table
project. The variables used are

  RGDPNA -- real GDP in 2011 U.S. dollars at PPP
  POP -- population
  YEAR -- year
  COUNTRYCODE -- 3-character code for country
  COUNTRY -- country name

There are 9,129 observations.

The zip file guide-100-years.zip contains all the data and program
files. It also includes a Microsoft Word file which includes helpful
hints for the process of generating results, Program Guide Growth and
Convergence 2017.docx. It includes various Matlab programs used to
generate the results, and some of the intermediate files.

All text files are ASCII files in DOS format. However, since the
guide-100-years.zip also contains binary files, Unix/Linux users
should *not* use "unzip -a".