This short, concrete, and to-the-point book guides students through this vast field of conflicting opinions. The book begins from the premise that students benefit most from seeing a balanced
treatment of all available views. For instance, this book provides coverage of both ad hoc and optimizing models. It also explores divisions such as flexible price versus sticky price
models, rationality versus irrationality, and calibration versus statistical inference. By giving consideration to each of these 'mini debates;, this book shows how each approach has its good
and bad points.