Archive for December, 2015

Existence and Uniqueness of PPP Indexes

Most indexes used for computation of purchasing power parities (PPP) are defined in this way: Suppose there are  j=1,...,m  countries and  i=1,...,n  commodities. PPP for jth-country is defined as a weighted average of prices of commodities in that country deflated by  world average price of the respected commodities. Continue reading


Lorenz Curve Paper

I am happy to report that the Lorenz curve paper (joint with Bill Griffiths) which I consider one of my best papers is finalised and submitted. I will discuss the the paper and its results in future posts. For now, here is a link to the paper itself.