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New unit root tests in the nonlinear ESTAR framework : the movement and volatility characteristics of crude oil and copper prices
Li, Yanglin - In: Computational economics 63 (2024) 5, pp. 1757-1776
Persistent link: https://www.econbiz.de/10014549246
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Recursive adjusted unit root tests under non-stationary volatility
Wang, Shaoping; Li, Yanglin; Wen, Kuangyu - In: Economics letters 205 (2021), pp. 1-5
Persistent link: https://www.econbiz.de/10013202963
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Testing for no-cointegration under time-varying variance
Wang, Shaoping; Zhao, Qing; Li, Yanglin - In: Economics letters 182 (2019), pp. 45-49
Persistent link: https://www.econbiz.de/10012122426
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Does Institutional Ownership Improve Firm Investment Efficiency?
Yue, Cao - 2018
Our study examines the influence of institutional investors on firm investment efficiency based on the non-financial firms listed on Chinese stock exchanges over the period of 2009–2014. Our results show that institutional ownership generally improves firm investment efficiency. However, after...
Persistent link: https://www.econbiz.de/10012909933