Instruct: Classify Amazon reviews into positive or negative sentiment
Query: interesting but incomplete

I found this book both fascinating and fundamentally flawed.This is a book that argues that Tobin's q ratio can be reliably used to determine whether the U.S. stock market is overvalued or not. One would think, therefore, that the authors would discuss in detail exactly how to compute the q ratio. Incredibly, they don't. What good is the q ratio if you can't calculate it for today's market?