Freedomnomics: Why the Free Market Works and Other Half-Baked Theories Don't is a good book of applied economics released recently. Its author is John Lott, an economist perhaps best known as the author of More Guns, Less Crime, a ground-breaking study of concealed carry laws.
Freedomnomics is partially a response to the bestselling book Freakonomics, which takes a more positive view of government regulations. Lott's book refutes several errors of this book.
The most interesting conclusions of the book have been ably summarized in this review by Ann Coulter, which leaves little to add.
Lott also destroys the myth of private monopolies maintaining their positions by selling below cost of production.
Freedomnomics is both easily readable and valuable.