Showing 1 - 10 of 911
This paper studies inference for the realized Laplace transform (RLT) of volatility in a fixed‐span setting using bootstrap methods. Specifically, since standard wild bootstrap procedures deliver inconsistent inference, we propose a local Gaussian (LG) bootstrap, establish its first‐order...
Persistent link: https://www.econbiz.de/10014362565
We present a new theory for the conduct of nonparametric inference about the latent spot volatility of a semimartingale asset price process. In contrast to existing theories based on the asymptotic notion of an increasing number of observations in local estimation blocks, our theory treats the...
Persistent link: https://www.econbiz.de/10012795628
-known phenomenon in financial markets. Mathematically, a bubble arises when the deflated price process transitions from a martingale to … a strict local martingale. This paper explores price bubbles using the framework of optional semimartingale calculus …
Persistent link: https://www.econbiz.de/10015358908
its cash-balance process is assumed to be described by a stochastic differential equation driven by Teugels martingales …
Persistent link: https://www.econbiz.de/10013165295
, accounting for inflation, interest rates, and claim occurrences. The first model extends the martingale approach to calculate …
Persistent link: https://www.econbiz.de/10015408385
We propose using a permutation test to detect discontinuities in an underlying economic model at a known cutoff point. Relative to the existing literature, we show that this test is well suited for event studies based on time‐series data. The test statistic measures the distance between the...
Persistent link: https://www.econbiz.de/10014306351
This paper presents an efficient solution method for solving stochastic overlapping generations (S-OLG) models. We use the Chebyshev parameterized expectation algorithm (C-PEA) developed by Christiano and Fisher (2000) to solve the life cycle block of S-OLGs. The method is well suited for this...
Persistent link: https://www.econbiz.de/10014578231
The parametric estimation of stochastic differential equations (SDEs) has been the subject of intense studies already for several decades. The Heston model, for instance, is based on two coupled SDEs and is often used in financial mathematics for the dynamics of asset prices and their...
Persistent link: https://www.econbiz.de/10014362627
This paper studies high-frequency econometric methods to test for a jump in the spread of bond yields. We propose a coherent inference procedure that detects a jump in the yield spread only if at least one of the two underlying bonds displays a jump. Ignoring this inherent connection by basing...
Persistent link: https://www.econbiz.de/10014343097
Despite the growing interest in realized stochastic volatility models, their estimation techniques, such as simulated maximum likelihood (SML), are computationally intensive. Based on the realized volatility equation, this study demonstrates that, in a finite sample, the quasi-maximum likelihood...
Persistent link: https://www.econbiz.de/10014425668