Publications

May 2024 (Revised May 2024)
Teaching Note

Optimalen Capital

By: Malcolm Baker, Elisabeth Kempf and Jonathan Wallen

Teaching Note for HBS Case No. 223-099. View Details

2024
Working Paper

Internal and External Capital Markets of Large Banks

By: Lina Lu, Marco Macchiavelli and Jonathan Wallen

Despite regulatory restrictions, large U.S. bank holding companies have sizable and dynamic internal capital markets. They raise long-term debt at the holding company and deposits at the commercial bank to internally make unsecured loans to affiliated broker-dealers.... View Details

Keywords: Banks and Banking; International Finance; Financial Markets

June 2023
Supplement

Optimalen Capital Spreadsheet Supplement

By: Malcolm Baker, Elisabeth Kempf and Jonathan Wallen

June 2023 (Revised May 2024)
Case

Optimalen Capital

By: Malcolm Baker, Elisabeth Kempf and Jonathan Wallen

A new client portfolio manager at a quantitative investment management firm must explain why her firm, Optimalen Capital, has rebalanced a client portfolio with a set of trades that seem unintuitive. In particular, Optimalen has added to its position of Walmart (ticker... View Details

Keywords: Investments; CAPM; Capital Asset Pricing Model; Investment Portfolio; Asset Pricing

Educators

November 2022 (Revised May 2023)
Case

Dicerna

By: Malcolm Baker, Ishita Sen and Jonathan Wallen

Educators

2022
Working Paper

Markups to Financial Intermediation in Foreign Exchange Markets

By: Jonathan Wallen

On average from 2013 to 2020, foreign asset managers in net sold forward 1.1 trillion U.S. dollars. This forward sale of dollars hedges the currency mismatch of foreign investment in U.S. dollar assets. By accommodating this demand, U.S. and European banks earn an... View Details

Keywords: Foreign Exchange; Financial Intermediation; Arbitrage; Market Power; Regulations; Currency; Assets; Interest Rates; Banking Industry

January 2022 (Revised January 2022)
Case

The Impact Developers Fund

By: Malcolm Baker, Samuel Gregory Hanson, Jonathan Wallen and Zach Komes

Educators

2022
Working Paper

Many Markets Make Good Neighbors: Multimarket Contact and Deposit Banking

By: John William Hatfield and Jonathan Wallen

We investigate the relationship between the interest rates offered to consumers in a deposit banking market and the contact that banks in that market have with each other in other markets. We show, in a simple theoretical model, that such overlapping relationships... View Details

Keywords: Antitrust; Deposit Banking; Market Power; Multimarket Contact; Banks and Banking; Markets; Competition

Forthcoming
Article

Segmented Arbitrage

By: Emil Siriwardane, Adi Sunderam and Jonathan Wallen

We use arbitrage activity in equity, fixed income, and foreign exchange markets to characterize the frictions and constraints facing intermediaries. The average pairwise correlation between the 32 arbitrage spreads that we study is 22%. These low correlations are... View Details

Keywords: Financial Intermediation; Arbitrage; Intermediary-based Asset Pricing; Finance; Segmentation

Forthcoming
Article

The Imperfect Intermediation of Money-Like Assets

By: Jeremy C. Stein and Jonathan Wallen

We study supply-and-demand effects in the U.S. Treasury bill market by comparing the returns on T-bills to the administered policy rate on the Federal Reserve’s reverse repurchase (RRP) facility. In spite of the arguably more money-like properties of an investment in... View Details

Keywords: Debt Securities; Demand and Consumers; Price