Advanced mathematical economics  
Rakesh V. Vohra
Routledge
This concise textbook presents students with all they need for advancing in mathematical economics. Detailed yet student-friendly, Vohra's book contains chapters in, amongst others:  * Feasibility * Convex Sets * Linear and Non-linear Programming* Lattices and Supermodularity.  Higher level undergraduates as well as postgraduate students in mathematical economics will find this book extremely useful in their development as economists.