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The Swedish House of Finance (SHoF) offers within its Doctoral Course Program in Finance a course in

Continuous Time Finance

Swedish House of Finance – Stockholm School of Economics Summer 2021

Teacher: Johan Waldén

Schedule: Mon, July 26, 10-12 Tue, July 27, 10-12, 14-16 Wed, July 28, 10-12, 14-16 Thu, July 29, 10-12, 14-16 Mon, Aug 2, 10-12, 14-16 Tue, Aug 3, 10-12, 14-16 Wed, Aug 4, 10-12, 14-16 Thu, Aug 5, 10-12 Overview:

The development of derivatives markets may be the single most important innovation in financial markets in the last fifty years. The celebrated Merton, Black & Scholes option pricing formula derived in the 70's has arguably been the most successful research paper in social sciences. The formula has been widely adopted by market participants, and has initiated a new field, Financial Engineering, which occupies researchers in financial institutions and universities throughout the world.

The focus of the course is on applied stochastic calculus applied to problems within finance. We will cover the theory of noarbitrage, Brownian motion, Ito integrals and calculus (Ito's lemma), change of measure (Girsanov's theorem), and links to partial differential equations (Feynman Kac's theorem, Kolmogorov equations). We apply the theory to derive many continuous time asset pricing formulas, including the celebrated Black-Scholes formulas for pricing plain-vanilla options.

Required text:

Tomas Björk, “Arbitrage Theory in Continuous Time”, 4th edition, 2020.

Optional texts:

Steven Shreve, “Stochastic Calculus for Finance I: The Binomial Asset Pricing Model”

Steven Shreve, “Stochastic Calculus for Finance II: Continuous-Time Models”.

Karatzas & Shreve, “Methods of Mathematical Finance”.

Darrell Duffie, “Dynamic Asset Pricing Theory”, 3rd edition.

Drottninggatan 98 | 111 60 Stockholm | Sweden | Tel: +46 8 736 9100 | www.houseoffinance.se

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Attendance: Please attend all classes and do not arrive late.

Grades: This is a Pass or Fail course. Grades will be based on:

Class participation 20.0 % Assignment: 40.0

Final exam: 40.0

Total 100.0 %

Final exam: There will be an open book take-home final exam, that students should solve

individually. The date for the exam is yet to be determined, but it will be sometime between August 10-20.

Assignment: There will be one, quite extensive, assignment that students may solve individually or in groups of two (no more!). The assignment is due on Monday, August 9.

Course Outline:

All chapters refer to Björk’s textbook. This outline is tentative. Depending on the time constraints, we may not have time to cover everything on the list.

Discrete Model Chapters 2-3

One-period: noarbitrage, fundamental theorem of asset pricing, price systems, martingale pricing Binomial model

Multi-period: dynamic portfolios, replicating portfolios, multi-period noarbitrage theory

Continuous time modeling Chapters 4-7

Stochastic integrals

Relationship to differential equations Dynamic portfolios

Arbitrage Pricing

The Black-Scholes model Chapters 8-10

Completeness, pricing, parity, the greeks Martingale pricing

Chapters 11-13

Stochastic Discount Factors

discount factors, Girsanov’s theorem

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Multidimensional Models Chapter 14

Pricing, risk-neutral valuation, state space reduction, martingale approach

More derivatives Chapter 16

Derivatives on dividend paying stocks, barrier options, barrier options

Term structure models Chapters 19-21

Basic definitions and relations, short rate models, general martingale models

Change of numeraire Chapter 15

Application to options and interest rate models

Registration

Please register in advance with the program administrator Jenny Wahlberg Andersson, Department of Finance, Stockholm School of Economics, Drottninggatan 98, 111 60 Stockholm,

e-mail: jenny.wahlberg.andersson@hhs.se Registration deadline: June 30, 2021 Travel Stipends

SHoF offers travel stipends to PhD students from Swedish universities. To apply, please send a brief motivation letter/mail by the supervisor and a budget to jenny.wahlberg.andersson@hhs.se.

The Nordic Finance Network (NFN) offers travel stipends to PhD students from other Nordic countries who come from one of the NFN member institutions.

Information on how to apply for NFN travel stipends is on http://nfn.aalto.fi/courses.htm.

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