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, portfolio constraints can lead to situations where not all arbitrage opportunities are necessarily eliminated in equilibrium …. For a world with portfolio constraints the concept of no arbitrage has to be replaced by a weaker concept which we call no … unlimited arbitrage. Second, though we can characterize prices which allow no unlimited arbitrage by the existence of certain …
Persistent link: https://www.econbiz.de/10013369966
order to numerically compute the prices of options. The data consist of more than 5000 call- and put-options from the German …
Persistent link: https://www.econbiz.de/10013200246
In Kusuda [45], we developed equilibrium analysis in security market economy with jump-Wiener information where no finite number of securities can complete markets. Assuming approximately complete markets (Björk et al. [11] [12]) in which a continuum of bonds are traded and any contingent claim...
Persistent link: https://www.econbiz.de/10010263367
This paper considers a general class of stochastic dynamic choice models with discrete and continuous decision variables. This class contains a variety of models that are useful for modeling intertemporal household decisions under risk. Our examples are drawn from the field of development...
Persistent link: https://www.econbiz.de/10010325850
formula holds for subordinated Brownian motion and, this representation is useful in developing simple and tractable hedging … strategies (the Greeks) in jump-type derivatives market as opposed to more complex jump models. …
Persistent link: https://www.econbiz.de/10011988796
for the existence of arbitrage opportunities or free lunches with vanishing risk, of the form of waiting to buy and … the discretisation chosen. Arbitrage examples are established where the continuous analogue is arbitrage-free under small … (1997) article proving arbitrage in fBm models. …
Persistent link: https://www.econbiz.de/10010330249
Financial options typically incorporate times of exercise. Alternatively, they embody set-up costs or indivisibilities … here that integrality constraints can often be relaxed. In fact, simple mathematical programming, aimed at arbitrage or …
Persistent link: https://www.econbiz.de/10013208513
Hedging being a predominant financial concern, is considered as a robust method of managing investment risks …. Literature evinces that the covered call strategy provides nominal returns alongside effective hedging. However, studies have not … compared the hedging effectiveness of covered call, covered put, collar, and synthetic long call strategies in the equity …
Persistent link: https://www.econbiz.de/10015074048
I develop a methodology for Bayesian estimation of globally solved, non-linear macroeconomic models. A novel feature of my method is the use of a mixture density network to approximate the distribution of initial states. I use the methodology to estimate a medium-scale, two-agent New Keynesian...
Persistent link: https://www.econbiz.de/10015209827
The standard approach to solving linear DSGE models is to apply the QZ method. It is a one-shot algorithm that leaves the researcher with little alternative than to seek a different algorithm should the result be numerically unsatisfactory. We develop an iterative implementation of QZ that...
Persistent link: https://www.econbiz.de/10015209955