activity
20132023
most citedExchangeable exogenous shock models

28 citations · 65 across the 13 of their papers we have counts for

collaborators

13 papers

q-fin.RM2023

Performance attribution with respect to interest rates, FX, carry, and residual market risks

Jan-Frederik Mai

We develop a method to decompose the PnL of a portfolio of assets into four parts: (a) PnL due to FX rate changes, (b) PnL due to interest rate changes, (c) carry gain due to time…

math.PR2020

Stochastic decomposition for -norm symmetric survival functions on the positive orthant

Jan-Frederik Mai, Ruodu Wang

We derive a stochastic representation for the probability distribution on the positive orthant whose association between components is minimal among all probability…

math.PR2020

Exchangeable min-id sequences: Characterization, exponent measures and non-decreasing id-processes

Florian Brück, Jan-Frederik Mai, Matthias Scherer

We establish a one-to-one correspondence between (i) exchangeable sequences of random variables whose finite-dimensional distributions are minimum (or maximum) infinitely divisible…

math.PR2020

Multivariate geometric distributions, (logarithmically) monotone sequences, and infinitely divisible laws (with erratum by Natalia Shenkman)

Jan-Frederik Mai, Matthias Scherer, Natalia Shenkman

Two stochastic representations of multivariate geometric distributions are analyzed, both are obtained by lifting the lack-of-memory (LM) property of the univariate geometric law t…

math.ST2019★ 3 cited

On the structure of exchangeable extreme-value copulas

Jan-Frederik Mai, Matthias Scherer

We show that the set of -variate symmetric stable tail dependence functions, uniquely associated with exchangeable -dimensional extreme-value copulas, is a simplex and determ…

math.PR2019★ 7 cited

The infinite extendibility problem for exchangeable real-valued random vectors

Jan-Frederik Mai

We survey known solutions to the infinite extendibility problem for (necessarily exchangeable) probability laws on , which is: Can a given random vector $\vec{X} = (X…

math.PR2018★ 6 cited

Subordinators which are infinitely divisible w.r.t. time: Construction, properties, and simulation of max-stable sequences and infinitely divisible laws

Jan-Frederik Mai, Matthias Scherer

The concept of a Lévy subordinator is generalized to a family of non-decreasing stochastic processes, which are parameterized in terms of two Bernstein functions. Whereas the indep…

stat.ME2018★ 7 cited

Canonical spectral representation for exchangeable max-stable sequences

Jan-Frederik Mai

The set of infinite-dimensional, symmetric stable tail dependence functions associated with exchangeable max-stable sequences of random variables with unit Fréchet margins is shown…

stat.ME2018★ 10 cited

Extreme-value copulas associated with the expected scaled maximum of independent random variables

Jan-Frederik Mai

It is well-known that the expected scaled maximum of non-negative random variables with unit mean defines a stable tail dependence function associated with some extreme-value copul…

stat.ME2018★ 4 cited

Exact Simulation of reciprocal Archimedean copulas

Jan-Frederik Mai

The decreasing enumeration of the points of a Poisson random measure whose mean measure has finite survival function on the positive half-axis can be represented as a non-increasin…

math.ST2016★ 28 cited

Exchangeable exogenous shock models

Jan-Frederik Mai, Steffen Schenk, Matthias Scherer

We characterize a comprehensive family of -variate exogenous shock models. Analytically, we consider a family of multivariate distribution functions that arises from ordering, i…

q-fin.RM2013

Consistent iterated simulation of multi-variate default times: a Markovian indicators characterization

Damiano Brigo, Jan-Frederik Mai, Matthias Scherer

We investigate under which conditions a single simulation of joint default times at a final time horizon can be decomposed into a set of simulations of joint defaults on subsequent…

q-fin.PR2013

Pricing bonds with optional sinking feature using Markov Decision Processes

Jan-Frederik Mai, Marc Wittlinger

An efficient method to price bonds with optional sinking feature is presented. Such instruments equip their issuer with the option (but not the obligation) to redeem parts of the n…