no code implementations • 4 Jul 2023 • Giuseppe Cavaliere, Thomas Mikosch, Anders Rahbek, Frederik Vilandt
Engle and Russell (1998, Econometrica, 66:1127--1162) apply results from the GARCH literature to prove consistency and asymptotic normality of the (exponential) QMLE for the generalized autoregressive conditional duration (ACD) model, the so-called ACD(1, 1), under the assumption of strict stationarity and ergodicity.
no code implementations • 10 Oct 2022 • Giovanni Angelini, Giuseppe Cavaliere, Luca Fanelli
We show that frequentist asymptotic inference in these situations can be conducted through Minimum Distance estimation and standard asymptotic methods if the proxy-SVAR can be identified by using `strong' instruments for the non-target shocks; i. e. the shocks which are not of primary interest in the analysis.
no code implementations • 4 Aug 2022 • Matteo Barigozzi, Giuseppe Cavaliere, Graziano Moramarco
We propose a factor network autoregressive (FNAR) model for time series with complex network structures.
no code implementations • 3 Aug 2022 • Giuseppe Cavaliere, Thomas Mikosch, Anders Rahbek, Frederik Vilandt
We establish new results for estimation and inference in financial durations models, where events are observed over a given time span, such as a trading day, or a week.
no code implementations • 3 Aug 2022 • Giuseppe Cavaliere, Sílvia Gonçalves, Morten Ørregaard Nielsen, Edoardo Zanelli
We consider bootstrap inference for estimators which are (asymptotically) biased.
no code implementations • 22 Jul 2022 • Giovanni Angelini, Giuseppe Cavaliere, Enzo D'Innocenzo, Luca De Angelis
In this paper we propose a new time-varying econometric model, called Time-Varying Poisson AutoRegressive with eXogenous covariates (TV-PARX), suited to model and forecast time series of counts.
no code implementations • 5 Feb 2022 • H. Peter Boswijk, Giuseppe Cavaliere, Luca De Angelis, A. M. Robert Taylor
We show that adaptive information criteria-based approaches can be used to estimate the autoregressive lag order to use in connection with bootstrap adaptive PLR tests, or to jointly determine the co-integration rank and the VAR lag length and that in both cases they are weakly consistent for these parameters in the presence of non-stationary volatility provided standard conditions hold on the penalty term.
no code implementations • 29 Jul 2021 • Matteo Barigozzi, Giuseppe Cavaliere, Lorenzo Trapani
We propose a novel methodology which does not require any knowledge or estimation of the tail index, or even knowledge as to whether certain moments (such as the variance) exist or not, and develop an estimator of the number of stochastic trends $m$ based on the eigenvalues of the sample second moment matrix of $y_{t}$.
no code implementations • 13 Jul 2021 • Giuseppe Cavaliere, Zeng-Hua Lu, Anders Rahbek, Yuhong Yang
We show that our tests perform better than/or perform as good as existing score tests in terms of joint testing, and has furthermore the added benefit of allowing for simultaneously testing individual elements of parameter of interest.
no code implementations • 28 May 2021 • Giuseppe Cavaliere, Indeewara Perera, Anders Rahbek
The test statistics considered are of Kolmogorov-Smirnov and Cram\'{e}r-von Mises type, and are based on a certain empirical process marked by centered squared residuals.
no code implementations • 7 Apr 2021 • Giuseppe Cavaliere, Ye Lu, Anders Rahbek, Jacob Stærk-Østergaard
Inference and testing in general point process models such as the Hawkes model is predominantly based on asymptotic approximations for likelihood-based estimators and tests.
no code implementations • 10 Jan 2021 • H. Peter Boswijk, Giuseppe Cavaliere, Anders Rahbek, Iliyan Georgiev
Instead, we use the concept of `weak convergence in distribution' to develop and establish novel conditions for validity of the wild bootstrap, conditional on the volatility process.