It seems the book "Capital in the Twenty-First Century" , written by French economist Thomas Piketty, is now selling well in the USA. The central idea of this book is that capitalism broadens the economic disparity and so we must tax the rich more in order to share it with many people.
The reason why this book is now selling well in the USA is because its content is about economic disparity. I read the news, in which the people in the USA are now concerned with economic disparity. They are angry