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21 results on '"Liu, Jiang-Long"'

5. Does the price of strategic commodities respond to U.S. Partisan Conflict?

Author

Jiang, Yong, Ren, Yi-Shuai, Ma, Chao-Qun, Liu, Jiang-Long, and Sharp, Basil

Subjects
Economics - General Economics
Abstract

A noteworthy feature of U.S. politics in recent years is serious partisan conflict, which has led to intensifying polarization and exacerbating high policy uncertainty. The US is a significant player in oil and gold markets. Oil and gold also form the basis of important strategic reserves in the US. We investigate whether U.S. partisan conflict affects the returns and price volatility of oil and gold using a parametric test of Granger causality in quantiles. The empirical results suggest that U.S. partisan conflict has an effect on the returns of oil and gold, and the effects are concentrated at the tail of the conditional distribution of returns. More specifically, the partisan conflict mainly affects oil returns when the crude oil market is in a bearish state (lower quantiles). By contrast, partisan conflict matters for gold returns only when the gold market is in a bullish scenario (higher quantiles). In addition, for the volatility of oil and gold, the predictability of partisan conflict index virtually covers the entire distribution of volatility.

Published
2018
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16. Pre-fenestration endovascular repair of aortic diseases in patients with zone 2 segment: A single-center experience.

Author

Zhang, Yu-Jing, Bai, Lei, Wang, Liang, Shi, Hong-Rui, Liu, Jiang-Long, Ma, Fu-Zhen, Guo, Shu-Ping, and Li, Xiao-Dong

Abstract

Objective: The present study aims to analyze the outcomes of three cases of pre-fenestration and branch stent-graft endovascular repair of aortic disease with zone 2 aortic lesions. Methods: From August 2017 to June 2018, three patients with zone 2 aortic lesions underwent thoracic endovascular repair with innominate artery, left common carotid artery, and left subclavian artery recannulation using pre-fenestration and branched stent-grafts to preserve the patency of the aortic arch branches. Results: The technical success rate was 100%. One patient had a proximal type I endoleak with no need for additional treatment. The overall mortality was 0%. All branches were patent. The follow-up period lasted for 2–15 months, with one patient lost to follow-up. There were no conversions to open surgical repair, aortic rupture, paraplegia, or retrograde type A aortic dissection. Conclusion: The use of a pre-fenestration and branch stent-graft for the thoracic endovascular repair of zone 2 aortic lesions is a feasible and effective method for aortic arch branch revascularization. The risk of this surgical procedure is high, requiring significant expertise. The procedure should be conducted only in experienced centers. Durability concerns should be assessed in future studies with long-term follow-up. [ABSTRACT FROM AUTHOR]

Published
2021
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