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A path-dependent approach to security valuation with application to interest rate contingent claims

Journal of Banking & Finance 1997 21(4), 541-562 open access
The last two decades have witnessed a tremendous growth in the volume of assets and liabilities whose cash flows depend, in a variety of ways, on the path of interest rates. Some of these, including floating-rate notes and swap agreements, contractually base cash flows on current and past interest rates and contain caps, floors, and other, more complex features. Others, including mortgages, many corporate bonds, and time deposits, are fixed-rate instruments that contain embedded options, such as those to prepay, call, or withdrawal. The irregular exercise of these options causes cash flows to vary as time proceeds and interest rates rise or fall. This paper develops a state-contingent claims technique for valuing such securities. It is derived from the option-based model of Breeden and Litzenberger (1978) using the transition matrix approach of Banz and Miller (1978). Particular attention is paid to valuing so-called path-dependent securities whose contemporaneous cash flows depend on the historical path of interest rates as well as their current level. A detailed example is provided in which an adjustable-rate mortgage is valued under a variety of economic and security specific assumptions.

Should I stay or should I go? Bank productivity and internationalization decisions

Journal of Banking & Finance 2014 42, 266-282 open access
Differences in firm-level productivity explain international activities of non-financial firms quite well. We test whether differences in bank productivity determine international activities of banks. Based on a dataset that allows tracking banks across countries and across different modes of foreign entry, we model the ordered probability of maintaining a commercial presence abroad and the volume of banks’ international assets empirically. Our research has three main findings. First, more productive banks are more likely to enter foreign markets in increasingly complex modes. Second, more productive banks also hold larger volumes of foreign assets. Third, higher risk aversion renders entry less likely, but it increases the volume of foreign activities conditional upon entry.

Profitability of momentum strategies in international markets: The role of business cycle variables and behavioural biases

Journal of Banking & Finance 2007 31(3), 955-972 open access
The paper investigates whether business cycle variables and behavioural biases can explain the profitability of momentum trading in three major European markets. Unlike previous studies, the paper nests both risk-based and behavioural-based variables in a two-stage model specification in an attempt to explain momentum profits. The findings show that, although momentum profitability in European markets is unexplained by conditional asset pricing models, it is attributable to asset mispricing that systematically varies with global business conditions. In addition, behavioural variables do not appear to matter much. Thus risk factors, which are undetected thus far and are largely attributable to the business cycle, could explain the momentum payoffs in European stock markets.

The valuation of American options on bonds

Journal of Banking & Finance 1997 21(11-12), 1487-1513 open access
We value American options on bonds using a generalization of the Geske–Johnson (Geske, R., Johnson, H., 1984. Journal of Finance 39, 1151–1542) (GJ) technique. The method requires the valuation of European options, and options with multiple exercise dates. It is shown that a risk-neutral valuation relationship (RNVR) along the lines of Black–Scholes (Black, F., Scholes, M., 1973. Journal of Political Economy 81, 637–659) model holds for options exercisable on multiple dates, even under stochastic interest rates, when the price of the underlying asset is lognormally distributed. The proposed computational procedure uses the maximized value of these options, where the maximization is over all possible exercise dates. The value of the American option is then computed by Richardson extrapolation. The volatility of the underlying default-free bond is modeled using a two-factor model, with a short-term and a long-term interest rate factor. We report the results of simulations of American option values using our method and show how they vary with the key parameter inputs, such as the maturity of the bond, its volatility, and the option strike price.

Investment and monetary policy in the euro area

Journal of Banking & Finance 2002 26(11), 2111-2129 open access
This paper analyses the effects of a change in monetary policy on firms’ investment in Germany, France, Italy and Spain using a data set which provides aggregated balance sheet and profit and loss account data for 17 different industries and three different size classes. The main findings are twofold. First, in each of the four countries a change in the user cost of capital, which in turn is affected by interest rates, has both statistically and economically significant effects on investment. Second, while the average interest rate on debt is generally higher for small firms than for large firms, there is little evidence that the effects of monetary policy on small firms are larger.

Investment preferences and risk perception: Financial agents versus clients

Journal of Banking & Finance 2023 154, 106489 open access
We study four fundamental components of financial agency settings: The perception of commonly used investment profile terminology, agents’ customization of portfolios to clients’ preferences, the effect of agents’ and clients’ preferences on investment levels, and the role of compensation schemes. We observe large heterogeneity in the perception of investment profiles, resulting in substantial miscommunication between clients and agents. Financial agents show a high willingness to implement their clients’ preferred investment profiles, yet appear to fail because of deviating perceptions. Agents’ own investment preferences matter, but take a back seat to clients’ preferences in determining investment shares. Different monetary incentive schemes hardly affect behavior. Our results suggest that moral constraints can limit agents’ discretion in the agency situation.

Bank instability: Interbank linkages and the role of disclosure

Journal of Banking & Finance 2022 134, 106353 open access
We study the impact of disclosure about bank fundamentals on depositors’ behavior in the presence (and absence) of economic linkages between financial institutions. Using a controlled laboratory environment, we identify under which conditions disclosure is conducive to bank stability. We find that bank deposits are sensitive to perceived bank performance. While banks with strong fundamentals benefit from more precise disclosure, an opposite effect is present for solvent banks with weaker fundamentals. Depositors take information about economic linkages into account and correctly identify when disclosure about one institution conveys meaningful information for others. Our findings suggest potential costs of bank transparency and that disclosure may not always be stability-enhancing.

Managing risk in multi-asset class, multimarket central counterparties: The CORE approach

Journal of Banking & Finance 2015 51, 119-130 open access
Multi-asset class, multimarket central counterparties (CCPs) are becoming less uncommon as a result of merges between specialized (single-asset class, single market) CCPs and market demands for greater capital efficiency. Yet, traditional CCP risk management models often lack the necessary sophistication to estimate potential losses relative to the closeout process of a defaulter’s portfolio in a multi-asset class, multimarket environment. As a result, multi-asset class, multimarket CCPs usually rely on a simplified silo approach for risk calculation which not only fails to deliver efficiency, but may also increase systemic risk. The CORE (Closeout Risk Evaluation) approach, on the other hand, provides conceptual and mathematical tools necessary for robust and efficient central counterparty risk evaluation in multi-asset class and multimarket environments, acknowledging the portfolio dynamics involved in the closeout process as well as important “real life” market frictions.

Savings goals and wealth allocation in household financial portfolios

Journal of Banking & Finance 2021 124, 106028 open access
We investigate how savings goals relate to wealth allocation and how this relationship is moderated by financial advice and numerical ability. Using panel data from a large household survey we find that as the number and the time horizon of savings goals increases, portfolios shift from safe assets to both fairly safe assets and risky assets. We also find that households with access to multiple sources of financial advice and independent financial advice hold more fairly safe and risky assets and that independent financial advice enhances the influence of savings goals on wealth allocation to fairly safe and risky assets. Overall we find that the possession of savings goals is associated with long term saving activity, and this is particularly evident for those with low levels of numerical ability. By enabling the formation of savings goals, the financial planning process can facilitate long-term investment in risky assets.