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Spatial Differentiation and Convergence Trend of High-quality Development Level of China’s Tourism Economy

Chinese Geographical Science 2024年第2期34卷 230-249页

作者： CAO Shanshan HE Zhaoli NIU Jinlan WANG Songmao ZHAO Lei school of Geography and Ocean Science Nanjing UniversityNanjing 210046China school of Business Administration Nanjing University of Finance and EconomicsNanjing 210046China school of Economics and management Shandong Agricultural Uni-versityTai’an 271018China school of Hotel management Shanghai Business SchoolShanghai 201400China school of Man-agement Zhejiang University of TechnologyHangzhou 310014China

This paper aims to interpret the connotation of high-quality development of tourism economy(HQTE)from the perspective of the new development concepts of innovation,coordination,green,openness and sharing,and then to evaluate the spatial differenti-ation of China’s HQTE based on provincial panel data from 2009 to ***,we employ the spatial convergence model to ex-plore the absolute and conditionalβconvergence trends of HQTE in the whole country and the eastern,central and western regions of *** empirical results reveal that:1)within the decade,from 2009 to 2018,regions of China with the highest HQTE index is its eastern region followed by the central region and then the western region,but the fastest growing one is the western region of China fol-lowed by the central region and then the eastern region.2)Whether or not the spatial effect is included,there are absolute and condition-alβconvergence in HQTE in the whole country and aforementioned three regions.3)The degree of government attention as well as the level of economic development and location accessibility are the positive driving factors for the convergence of HQTE in the whole country and the three *** degree of marketization and human capital have not passed the significance test either in the whole country or in the three *** above conclusions could deepen the understanding of the regional imbalance and spatial conver-gence characteristics of HQTE,clarify the primary development objects,and accomplish the goal of China’s HQTE.

关键词： new development concepts high-quality development of tourism economy(HQTE) spatial convergence China

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A Tale of Two“Skewness”:Managerial Epidemic Experience,Probability Weighting and Financial Market Stability

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Social Sciences in China 2024年第1期45卷 157-181页

作者： Gu Leilei Ni Xiaoran Peng Yuchao Business school Central University of Finance and Economics school of Economics Xiamen University school of finance and Belt&Road finance Institute Central University of Finance and Economics

Under probability weighting,entrepreneurs with skewness preference tend to seek rightskewed and avoid left-skewed *** show that Chinese firms managed by CEOs with professional epidemic experience,i.e.,who previously experienced the outbreak of SARS during their tenure as high level executives,have a lower stock price crash risk measured by the negative skewness of stock prices in subsequent *** particular,those firms intentionally avoid stock price crashes by adopting more conservative strategies in ***,we provide the first evidence on the unintended effect of entrepreneurs'subjective judgments of the probabilities of disease outbreaks on financial market *** have long-term implications for the financial system.

关键词： SARS epidemic experience probability weighting skewness preference stock price crash risk

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Principal Model Analysis Based on Bagging PLS and PCA and Its Application in Financial Statement Fraud

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Journal of Systems Science and Information 2024年第2期12卷 212-228页

作者： Xiao LIANG Qiwei XIE Chunyan LUO Liang TANG Yi SUN school of Economics and management Beijing University of TechnologyBeijing 100124China Shanghai Tongtu Semiconductor Technology Co. LtdShanghai 210203China school of finance Anhui University of Finance&EconomicsBengbu 233000China

Motivated by the Bagging Partial Least Squares(Bagging PLS)and Principal Component Analysis(PCA)algorithms,a novel approach known as Principal Model Analysis(PMA)method is introduced in this *** the proposed PMA algorithm,the PCA and the Bagging PLS are *** this method,multiple PLS models are trained on sub-training sets,derived from the training set using the random sampling with replacement *** regression coefficients of all the sub-PLS models are fused in a joint regression coefficient *** final projection direction is then estimated by performing the PCA on the joint regression coefficient ***,the proposed PMA method is compared with other traditional dimension reduction methods,such as PLS,Bagging PLS,Linear discriminant analysis(LDA)and *** results on six public datasets demonstrate that our proposed method consistently outperforms other approaches in terms of classification performance and exhibits greater ***,it is employed in the application of financial statement fraud *** and other five algorithms are utilized to financial statement fraud which concerned by the academic community,and the results indicate that the classification of PMA surpassed that of the other methods.

关键词： principal model analysis partial least squares principal component analysis dimension reduction ensemble learning financial statement fraud detection

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Quality disclosure strategies for small business enterprises under consumer loss aversion

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Journal of management Science and Engineering 2024年第1期9卷 62-87页

作者： Danli Yao Simai He Meng Zheng Business school University of Shanghai for Science and TechnologyShanghai200093China school of Information management and Engineering Shanghai University of Finance and EconomicsShanghai200433China

In this paper,we focus on small business enterprises(SBEs)that usually have low market power but can rely on retailers to transact sales and gain the ability to disclose quality ***,consumer loss aversion(CLA)is pronounced when buying from SBEs that have yet to develop a strong reputation and uncertain *** focus on two competing SBEs with heterogeneous quality levels and discuss their quality disclosure strategiesd whether selling through a retailerd in the context of *** study the interaction between consumers'prior belief in product quality and CLA and how these factors affect equilibrium *** show that a situation in which low-quality and high-quality SBEs both choose to disclose will not occur under a neutral consumer attitude,i.e.,it happens only when the aversion level is *** the aversion level is low,either the low-quality SBE or the high-quality SBE will decide to disclose,and the disclosing party depends on the prior *** addition,CLA significantly impacts the monotonicity of both SBEs'and retailers'prices and profits relating to the consumers'prior beliefs.

关键词： Quality disclosure Consumer loss aversion Competition Game theory

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The impact of the COVID-19 prevention and economic interventions on express delivery industry:Evidence from China

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Journal of management Science and Engineering 2024年第1期9卷 16-37页

作者： Juan Liu Jiafu Tang Minghe Sun school of Economics Dongbei University of Finance&Economics(DUFE)Dalian116025China school of management Science&Engineering Dongbei University of Finance&Economics(DUFE)Dalian116025China Department of management Science and Statistics College of BusinessThe University of Texas at San AntonioSan AntonioUSA

As a fundamental logistics service,the express delivery(ED)industry provides production and consumption activities to maintain efficient supply chain *** plays an important role in promoting industrial development and maintaining daily life and *** study examined the effects of COVID-19 on the ED industry using ED package delivery data from 31 provinces(autonomous regions and municipalities)in *** a difference-in-differences method,the COVID-19 outbreak was found to have a positive effect and epidemic prevention and control(EPC)policies were found to have negative effects on the development of the ED *** addition to EPC policies,the Chinese government has implemented other short-term economic interventions(SEI),such as the resumption of work and production(RWP),policies to balance economic growth,and epidemic *** study divided the pandemic period into three stages to analyze the different impacts of EPC and SEI policy changes on the ED *** RWP policies adopted during the pandemic positively impacted the volume and income of packages delivered to the ED *** conclusions of this study are significant for the ED industry in addressing public health emergencies and for the Chinese government to formulate EPC and SEI policies during epidemic periods.

关键词： COVID-19 Epidemic prevention and control policy Resumption of work and production Express delivery industry Quasi-experiment Difference-in-differences

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Tamed EM method for a delayed Ait-Sahalia type model driven by Poisson jumps

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Acta Mathematica Sinica,English Series 2024年

作者： Li TAN Sheng Rong WANG school of Statistics and Data Science Jiangxi University of Finance and Economics Key Laboratory of Data Science in finance and Economics Jiangxi University of Finance and Economics College of Modern Economics and management of Jiangxi University of finance and Economics

In this paper, we consider a delayed Ait-Sahalia type model driven by Poisson jumps. The analytical properties including uniqueness, positiveness and boundedness of the true solution to this model are investigated. Since the coefficients are sup-linear, a tamed Euler-Maruyama(EM) method is constructed, and it is shown that the tamed EM solution converges strongly to the true solution.

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Strong invariance principle for a counterbalanced random walk

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Applied Mathematics(A Journal of Chinese Universities) 2024年第2期39卷 370-380页

作者： TAN Hui-qun HU Zhi-shui DONG Liang International Institute of finance School of ManagementUniversity of Science and Technology of ChinaHefei 230026China Center for Basic Teaching and Experiment Nanjing University of Science and TechnologyJiangyin 214443China

We study a counterbalanced random walkS_(n)=X_(1)+…+X_(n),which is a discrete time non-Markovian process andX_(n) are given recursively as *** n≥2,X_(n) is a new independent sample from some fixed law̸=0 with a fixed probability p,andX_(n)=−X_(v(n))with probability 1−p,where v(n)is a uniform random variable on{1;…;n−1}.We apply martingale method to obtain a strong invariance principle forS_(n).

关键词： random walk martingale invariance principle

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Decentralization, Supervision, and Chinese Local Government Debt

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China & World Economy 2024年第4期32卷 229-262页

作者： Chunfei Yang Yongyou Li Yu Qi Yanzhe Xu school of Economics and management Wuhan UniversityChina school of Economics Shandong UniversityChina school of Public finance and Taxation Zhongnan University of Economics and LawChina

Decentralization can alter the incentive structure of local governments and one outcome of this is debt accumulation. Based on the “Province-Managing-County” pilot policy, a fiscal decentralization reform devolving fiscal power from the prefecture-level city to the county level, we assess the impact of fiscal decentralization on local government debt using a difference-in-differences model with a unique county-level dataset from 2011 to 2019. According to the study findings, the “Province-Managing-County” reform resulted in an average increase of 5.758 percent in the local government debt ratio across the pilot counties. Mechanism analyses suggest that this may have arisen from changes in the incentive structure, including external pressures from government assessments and internal developmental needs for promotion, leading to a rise in expenditure pressures on local governments. The role of supervision in mitigating the impact of fiscal decentralization on debt growth was also demonstrated, indicating that an appropriate supervision mechanism must be in place in conjunction with a decentralization policy.

关键词： fiscal decentralization incentive structure local government debt supervisior

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On the Pathwise Uniqueness of Solutions of One-dimensional Reflected Stochastic Differential Equations with Jumps

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Acta Mathematicae Applicatae Sinica 2024年第1期40卷 149-163页

作者： Hua Zhang school of Statistics and Data Science&Key Laboratory of Data Science in finance and Economics Jiangxi University of Finance and EconomicsNanchang330013China

In this paper, we are concerned with the problem of the pathwise uniqueness of one-dimensional reflected stochastic differential equations with jumps under the assumption of non-Lipschitz continuous coefficients whose... 详细信息

关键词： reflected diffusion processes with jumps pathwise uniqueness local time Meyer It?'s formula

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A Global Optimality Principle for Fully Coupled Mean-field Control Systems

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Acta Mathematicae Applicatae Sinica 2024年第2期40卷 379-413页

作者： Tao HAO school of Statistics and Mathematics Shandong University of Finance and EconomicsJinan 250014China

This paper concerns a global optimality principle for fully coupled mean-field control *** the first-order and the second-order variational equations are fully coupled mean-field linear FBSDEs. A new linear relation is introduced, with which we successfully decouple the fully coupled first-order variational equations. We give a new second-order expansion of Y^(ε) that can work well in mean-field framework. Based on this result, the stochastic maximum principle is proved. The comparison with the stochastic maximum principle for controlled mean-field stochastic differential equations is supplied.

关键词： optimal control global maximum principle fully coupled general mean-field FBSDE adjoint equation recursive utility

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