Financiële Wiskunde 2015-2016
NWI-WB085

Contents

We treat a number of basic but fundamental issues in financial mathematics, in particular pricing of financial derivatives and hedging by self-financing portfolios. The course starts with financial models in discrete time, treats convergence of these models to models in continuous time. Equally important are some relevant mathematical concepts and techniques that are central in the field: Brownian motion, heat equation and related PDEs, stochastic calculus and measure transformation.

Literature

A set of lecture notes will be used, which might be extended in the last weeks of the course. Further reading: Tomas Björk, Arbitrage Theory in Continuous Time; Steven E. Shreve, Stochastic Calculus for Finance II.

People

Lectures: Peter Spreij
Exercise classes: Norbert Mikolajewski

Schedule

Lectures: Wednesdays, 13:45-15:30 in HG03.054. Opportunity for asking questions at 13:30.
Exercise classes: Fridays, 08:45-10.30 uur in HG00.308 (week 5, 7-11) and in HG00.065 (week 6 and other weeks).
First lecture on 3 February 2016. No lectures on March 2, March 30, April 6, April 27 (but on April 26 instead: 13:45- 15:30 in HG00.058), May 4, May 18 and no exercise classes on the corresponding Fridays; in addition no exercise class on March 25; other changes in the schedule will appear here. Last lecture no later than June 1.

Examination

Oral exam. Homework assignments starting from week 4 count for 25%. What you have to know: The theory, i.e. all important definitions and results (lemma's, theorems, etc.), but proofs will not be asked. Optional: you may prepare two theorems or so together with their proofs(!). You select your favourite ones! Criteria to consider: they should be interesting, non-trivial and explainable in a reasonably short time span (at most 15 minutes). You will be asked to present one of them. See the schedule for more information and when you have to be present. Check the schedule regularly; expect to see some moderate changes from time to time! Location: my office, room 03.752.


Programme

(regularly updated, )

1 Lecture: sections 1.1 (partly, until p.7 half way), A.4 (partly), A.5 (partly).
Exercise class: 1.1, 1.2(a), A.10, A.12.
Homework: read what has been treated during class (even if it was superficially) and make Exercises 1.3, 1.4, A.11 (remove, ignore the last part with $\hat{Y}$). See this too as experimenting a bit with what is doable (or not).
2 Lecture: Remainder of Section 1.1, Section 1.2 up to Theorem 1.3.
Exercise class: Make Exercises A.13, 1.6, 1.7, and (if time permits) Exercise 2 of the additional exercises.
Homework: Make Exercises 1.2(b), 1.5, and Exercise 1 of the additional exercises.
3 Lecture: Discussion of portfolios and options, remainder of Section 1.2.
Exercise class: Make Exercises 1.8, 1.9, 1.11.
Homework: Make Exercise 1.10 and read Sections A2, A3 (not all details, remember the main results there).
4 Lecture: Sections 2.1, 2.2 until the first part of the proof of Theorem 2.5.
Exercise class: Make Exercises 2.1, 2.3, 2.4, 2.5.
Homework: Make Exercises 2.2, 2.13 (needed for next time) and show that Equation (2.7) holds true. Make yourself familiar with the results of Section A.6 (and ask questions next time if necessary).
5 Lecture: Some essentials of characteristic functions and Hilbert spaces, remainder of the proof of Theorem 2.5.
Exercise class: Make Exercises 2.6, 2.8 and Exercise 6 of the additional exercises.
Homework: Read (also the last parts of) Section 2.2. Make Exercise 2.9 (show first that $E\exp(uZ)=\exp(\frac{1}{2}u^2)$ if $Z$ is standard normal and $u$ is real, simply by integration) and Exercise 5 of the additional exercises.
6 Lecture: Section 2.3, the beginning of Section 3.1, and the backward heat equation.
Exercise class: Make Exercises 3.1, 3.2 (for this exercise you quickly glance at the proof of Proposition 3.2, in particular Eq (3.4) and what is around it), 3.4.
Homework: Make Exercises 2.10, 2.14.
7 Lecture: Remainder of Section 3.1 (Proposition 3.2 + proof, mentioning of Thm 3.3) and Section 4.1 up to Proposition 4.2.
Exercise class: none
Homework: Make Exercises 3.5, 3.6 and 3.9 (due date after the two exam weeks).
8 Lecture: Section 4.1 from Corollary 4.3, Sections 5.1, 5.2.
Exercise class: Make Exercises 4.4, 4.6, 4.7.
Homework: Make Exercises 4.2, 4.5, 4.8, 5.1.
9 Lecture: Section 5.3, Section 6.1 up to Proposition 6.1.
Exercise class: Make Exercises 5.3, 5.4(c,e) [the answer to (e) should be familiar to you], Additional exercise 9.
Homework: Make Exercises 5.2, 5.4(a,b), Additional exercise 10.
10 Lecture: Section 6.1 from Proposition 6.1 (and perhaps a recap of Section A.4).
Exercise class: Make Exercises 6.3, 6.8 and Additional exercise 13.
Homework: Make Exercise 6.4 (ignore the reference to Lemma 6.6, just start from two representations and 'subtract'; think further of using quadratic variation) and Additional exercises 11 and 12.
11 Lecture: Section 6.2.
Exercise class: Make Exercises 6.5, 6.9 and 6.12.
Homework: Make Exercises 6.6, 6.7 and Additional exercise 14
12 Lecture: Sections 6.3, 7.1, Section 7.2 up to Proposition 7.4 / Corollary 7.5.
Exercise class: Make Exercises 4.11, 6.10, 7.4.
Homework: Make Exercises 6.11 and 15 of the Additional Exercises.
13 Lecture: Section 7.2 from Corollary 7.5, Sections 7.3, 7.4.
Exercise class: Make exercises 7.1, 7.5, 7.7.
Homework: Make exercises 7.6 (don't give an explicit expression (unless you really want), but express the price of the straddle in terms of the prices of the constituents of the constant portfolio like in Exercise 7.7), 7.9 and Additional Exercise 16.