Here are the books I have for sale. Let me know if interested. All are in brand new condition.

Foundations of modern probability (Hardcover): Olav Kallenberg, $50
Introduction to Probability models (paperback): Sheldon Ross, $40
Stochastic DIfferential equations (paperback): Oksendal, $20
Measure Theory (paperback): Halmos, $30
Ecological Inference: King, Rosen, Tanner, $50
Mathematics for economists (paperback): Simon & Blume, $70