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econ.EM2023★ 1 cited
Nonparametric Estimation of Large Spot Volatility Matrices for High-Frequency Financial Data
Ruijun Bu, Degui Li, Oliver Linton +1
In this paper, we consider estimating spot/instantaneous volatility matrices of high-frequency data collected for a large number of assets. We first combine classic nonparametric k…
econ.EM2022
Improving Estimation Efficiency via Regression-Adjustment in Covariate-Adaptive Randomizations with Imperfect Compliance
Liang Jiang, Oliver B. Linton, Haihan Tang +1
We investigate how to improve efficiency using regression adjustments with covariates in covariate-adaptive randomizations (CARs) with imperfect subject compliance. Our regression-…
econ.EM2020
On the Time Trend of COVID-19: A Panel Data Study
Chaohua Dong, Jiti Gao, Oliver Linton +1
In this paper, we study the trending behaviour of COVID-19 data at country level, and draw attention to some existing econometric tools which are potentially helpful to understand…