no code implementations • 17 Aug 2023 • Dennis Kristensen, Young Jun Lee, Antonio Mele
This paper develops power series expansions of a general class of moment functions, including transition densities and option prices, of continuous-time Markov processes, including jump--diffusions.
no code implementations • 14 Sep 2021 • Dongwoo Kim, Young Jun Lee
Conditional on first-dose coverage, an increased fraction with two doses appears to offer no further reductions in new cases and deaths.
no code implementations • 10 Apr 2019 • Dennis Kristensen, Young Jun Lee
We develop a novel asymptotic theory for local polynomial (quasi-) maximum-likelihood estimators of time-varying parameters in a broad class of nonlinear time series models.