Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Someone has a chip on her shoulder

The author is definitely biased. As a physician and an economist I certainly don't sympathize with the drug companies but the author appears to have a chip on her shoulder. She spits out factoiods and then uses poor logic without any analytical basis to derive conclusions.There normally exists two kinds of economics, normative economics and positive economics. This book is an example of a 3rd type of economics called unrealistic economics.It is so bad I returned it because I felt robbed.