Alexis Akira Toda and Yulong Wang, "Efficient Minimum Distance
Estimation of Pareto Exponent from Top Income Shares", Journal of
Applied Econometrics, Vol. 36, No. 2, 2021, pp. 228-243.

There are two data files, which are ASCII files in DOS format. They are 
zipped in the file tw-data.zip. In addition, there are six Matlab code 
files, which are zipped in the file tw-code.zip. Unix/Linux users should 
use "unzip -a".


** Description of files **

-- "TopShareUS.csv"

CSV file containing top income shares for US. The source data are
available as an Excel spreadsheet (Table A.3) at
https://eml.berkeley.edu/~saez/TabFig2017prel.xls

-- Variable list 
* Year: the year of the income data
* p90p100: top 10% income share (from 1917 to 2017, total 101)
* p95p100: top 5%  income share (from 1917 to 2017, total 101)
* p99p100: top 1%  income share (from 1913 to 2017, total 105)
* p99.5p100: top 0.5% income share (from 1913 to 2017, total 105)
* p99.9p100: top 0.1% income share (from 1913 to 2017, total 105)
* p99.99p100: top 0.01% income share (from 1913 to 2017, total 105)

-- "TopShareFrance.csv"

CSV file containing top income shares for France. The source data are
available at https://wid.world/

* Year: the year of the income data
* p90p100: top 10% income share (from 1900 to 2014, total 102)
* p95p100: top 5%  income share (from 1900 to 2014, total 102)
* p99p100: top 1%  income share (from 1900 to 2014, total 102)
* p99.5p100: top 0.5% income share (from 1900 to 2014, total 102)
* p99.9100: top 0.1% income share (from 1900 to 2014, total 102)
* p99.99p100: top 0.01% income share (from 1900 to 2014, total 102)


Matlab code files:

-- Chowtest.m     conducts Chow test

-- getCI.m        computes confidence interval using the approach of
                  Ibragimov & Mueller

-- MDobj.m        defines objective function of minimum distance estimator

-- ParetoCUMDE.m  implements continuously updated minimum distance estimator
                  (CUMDE)

-- test_MDobj.m   example of how to use MDobj.m

-- test_ParetoCUMDE.m  main file to replicate results in paper


** Instructions for replicating results in paper **

1. Open "test_ParetoCUMDE.m" in Matlab (file works in version 2019b) and 
   run. By setting "country = 1" on line 22, you get the results for US. 
   Setting "country = 2" is for France.

2. After running "test_ParetoCUMDE.m", run "Chowtest.m" and "getCI.m".