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We consider two sequences of Markov chains inducing equivalent measures on the discrete path space. We establish conditions under which these two measures converge weakly to measures induced on the Wiener space by weak solutions of two SDEs, which are unique in the sense of probability law. We...
Persistent link: https://www.econbiz.de/10011544749
The paper analyzes one of the most common life insurance products — the so-called participating (or with profits) policy. This type of contract stands in contrast to unit-linked (UL) products in that interest is credited to the policy periodically according to some mechanism which smoothes...
Persistent link: https://www.econbiz.de/10013089171
This document contains implementation notes related to Bang and Daboussi (2022) . We have extended the original paper by allowing actual accrual factors (not all 1) and non-annual frequency on the fixed side. The note first describes the detailed formulas in this extended setting. In a second...
Persistent link: https://www.econbiz.de/10014350634
We estimate the term structure of the price of variance risk (PVR), which helps distinguish between competing asset-pricing theories. First, we measure the PVR as proportional to the Sharpe ratio of short-term holding returns of delta-neutral index straddles; second, we estimate the PVR in a...
Persistent link: https://www.econbiz.de/10011303715
The credit valuation adjustment (CVA) of OTC derivatives is an important part of the Basel III credit risk capital requirements and current accounting rules. Its calculation is not an easy task - not only it is necessary to model the future value of the derivative, but also the probability of...
Persistent link: https://www.econbiz.de/10010358352
We study American swaptions in the linear-rational (LR) term structure model introduced. The American swaption pricing problem boils down to an optimal stopping problem that is analytically tractable. It reduces to a free-boundary problem that we tackle by the local time-space calculus. We...
Persistent link: https://www.econbiz.de/10011516038
The market model of interest rates specifies simple forward or Libor rates as lognormally distributed, their stochastic dynamics has a linear volatility function. In this paper, the model is extended to quadratic volatility functions which are the product of a quadratic polynomial and a...
Persistent link: https://www.econbiz.de/10011538865
Spreads of agency mortgage-backed securities (MBS) vary significantly in the cross section and over time, but the sources of this variation are not well understood. We document that, in the cross section, MBS spreads adjusted for the prepayment option show a pronounced smile with respect to the...
Persistent link: https://www.econbiz.de/10010404146
The illiquidity of long-maturity options has made it difficult to study the term structures of option spanning portfolios. This paper proposes a new estimation and inference framework for these option-implied term structures that addresses long-maturity illiquidity. By building a sieve estimator...
Persistent link: https://www.econbiz.de/10010459730
This paper develops a new macro-financial continuous-time model for the term structure of interest rates assuming that the instantaneous interest rate converges to a certain long-term mean level that depends on the business cycle and that the interest rate volatility depends on the interest rate...
Persistent link: https://www.econbiz.de/10013131329