Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Why aren't reviewers and other economists angry?

I was very disappointed with this book. It can cause people to belitle economics, particularly with the way Mr. Levitt makes some pretty rash conclusions. A most telling example is his link between abortions and the lower crime rate. Where are the actual figures? The incidence of violent crimes dropped from 1.9 million to 1.4 million between 1991 and 2000 - how does that really relate to the 16 million abortions that took place in that decade? The author talks too often about percentage movements, but a more thorough investigation of the numbers will prove that most of his ideas cannot be corroborated. I am surprised economists, reviewers and the pro-life community are not angry.