Geneviève Gauthier

Back

Cahiers du GERAD

21 results — page 1 of 2

, , and

Statistical learning models are proposed for the prediction of the probability of a spike in the electricity DART (day-ahead minus real-time price) spread. A...

BibTeX reference
, , , and

A new factor-based representation of implied volatility surfaces is proposed. The factors adequately capture the moneyness and maturity slopes, the smile att...

BibTeX reference
and

Generally, the semiclosed-form option pricing formula for complex financial models depends on unobservable factors such as stochastic volatility and jump int...

BibTeX reference
, , and

We propose the option realized variance as a new observable covariate that integrates high frequency option prices in the inference of option pricing models....

BibTeX reference
, , and

Security prices are important inputs for estimating credit risk models. Yet, to obtain an accurate firm-specific credit risk assessment, one needs a reliable...

BibTeX reference
, , , and

The Great Recession has shaken the foundations of the financial industry and led to tighter solvency monitoring of both the banking and insurance industries....

BibTeX reference
, , and

Portfolio credit risk models are very often constructed with correlation matrices serving as proxies for interrelations in the creditworthiness of each compa...

BibTeX reference
, , and

Credit spreads and CDS premiums are investigated before, during and after the financial crisis with a flexible credit risk model. The latter is designed to c...

BibTeX reference
, , and

A dynamic global hedging procedure making use of futures contracts is developed for a retailer of the electricity market facing price, load and basis risk. S...

BibTeX reference
, , and

This paper presents a framework in which many structural credit risk models can be made hybrid by randomizing the default trigger, while keeping the capita...

BibTeX reference
, , and

We develop a flexible discrete-time hedging methodology that miminizes the expected value of any desired penalty function of the hedging error within a gener...

BibTeX reference
, , and

In this paper, we derive and empirically test a regime-shifting dynamic term structure model for pricing interest rate caps. The central state variables are...

BibTeX reference
, , and

This paper develops a dynamic risk management model to determine a firm's optimal risk management strategy. This strategy has two elements: first, for low ...

BibTeX reference
and

This paper presents a framework where many existing structural credit risk models can be made hybrid by using a transformation of leverage to define the defa...

BibTeX reference
, , and

This paper develops a dynamic model to determine a firm's optimal risk management strategy when it faces uncertainty about its future profitability and inves...

BibTeX reference
, , and

We propose a simple modification of lattice schemes reducing the bias of lattice option prices with respect to continuous time and state option prices. The m...

BibTeX reference
, , and

Moody's KMV method is a popular commercial implementation of the structural credit risk model pioneered by Merton (1974). It is an algorithm for estimating...

BibTeX reference
, , , and

In Duan, Gauthier and Simonato (1999), analytical formulas to approximate the price European options in the GARCH framework were developed. These formulas a...

BibTeX reference
, , , and

One critical difficulty in implementing Merton’s (1974) credit risk model is that the underlying asset value cannot be directly observed. The model requires...

BibTeX reference
, , and

We develop a Markov chain pricing method capable of handling several state vari- ables. The Markov chain construction of Duan and Simonato (2000) is modifie...

BibTeX reference