Interesting empirical findings and theoretical arguments but not compelling enough to revolutionize microeconomic theory, offering a useful supplement to mainstream economic theories, pointing out the well-known limitations of competition in particular and rational-actor models in economics in general. It does a fine job pointing out anomalous distortions in various market outcomes but not in explaining them well. The book carries scant predictive weight and offers either ambivalent or erroneous policy prescriptions, leaving many more questions unanswered than did the neoclassical paradigm. It did not actually change my mind on issues. For example, I supported free trade prior to reading this book and still support free trade after reading it, and the existing serious research on this topic confirms that the net impact of free trade for the peoples of nations is positive and beneficial, even though there are "losers" who will be worst off - but excessive protectionist support to the "losers" is inefficient, very costly, and ultimately futile. Still, competition can produce perverse outcomes: for instance, although deregulation has been more beneficial than harmful (e.g lower prices, increased access to air travel to more people), the greater competition it has generally helped to foment has led to tighter markets in which shocks to production costs (e.g. rising fuel costs) cannot be easily passed onto air-travel consumers, so increased production costs have to be paid for through other means, such as reduced amenities (e.g. meals, leg-room) for lower-price consumers, longer wait times in ticket lines, baggage delays, increased congestion, etc. - the problems air-traveling folks have been recently complaining about. In the end, the book reluctantly understands that the benefits from competition (and I would say rational-actor modeling of mainstream economics) exceed its costs.