I am in the process of writing a new PhD level textbook, *Financial Models and Theories*. It will be in three parts, Single Period Models, Multi-Period Models, and Models with Heterogeneous Information. Preliminary versions of some chapters are listed below with links to pdf files. The final 8-digit number indicates the date the file was posted. Areas highlighted in yellow contain material I wish to check and/or update.

My philosophy in writing this book is to temper rigor with clarity. Proofs are not the most general but are provided to give the proper intuition. For example, proofs may assume discrete spaces or differentiable functions when Theorems are are true more generally. Many examples and illustrations are also provided as I’ve found the best way I can understand complicated ideas is to see how they work in specific case.

Feel free to give copies of the pdf files to others.

If you find any errors, particularly in the math or proofs, please let me know.

**Part I Single Period Models**

- I-01 Utility Theory 20200822
- I-02 Risk 20200822
- I-03 Risk Aversion 20200822
- I-04 Arbitrage 20200822
- I-05 Complete Markets 20200822
- I-06 Mean-Variance Theory and the CAPM 20200822
- I-07 Extensions to the CAPM 20200822
- I-08 The Portfolio Problem 20200822
- I-09 Utility-Based Models 20200822
- I-10 Efficient Portfolios 20200822
- I-11 APT 20200822
- I-12 Mutual Fund Separation Theorems 20200822
- I-13 Probability Weighting 20200822
- I-14 Cumulative Prospect Theory 20200822