This book synthesizes recent research in development microeconomics which extends the field beyond Walrasian general equilibrium paradigm to incorporate such features as informational asymmetries, network externalities, and various types of coordination failures. Topics covered in this volume include such things as household economics, rural credit markets, and the adoption of new techniques. The emphasis is on "applied theory" -- empirical evidence on the theoretical models is mentioned, but not discussed in depth. The arguemnts are presented verbally, graphically, and mathematically. The writing is quite clear. Numerous references are cited in the text and given at the end of each chapter. This small book would be very useful to graduate students and academics. Undergraduate students will probably find the math a little heavy.