An Empirical Study on Purchasing Intention of Online Group-buying in China : Focusing on the Mediating Effect of Perceived Risk

Zhai Shuai,Wang Jianfeng 한국유통과학회 2013 한국유통과학회 학술대회 논문집 Vol.2013 No.-

In recent years, the development of electronic commerce has led to the creation of many new and interesting business models for internet-based buying, and online group-buying has become an effective form of it. Online group-buying is a model in which consumers collaborate and purchase a good at a discounted price. Many online group-buying websites are focusing on social service products which have great potential space for a bigger discount. Customers use "online shopping, offline consuming" as a way to consume, which has different perceived risks along with the change of business model. The purpose of this study is to examine the effect of reputation, price and service on purchasing intention through mediator which is perceived risk. To empirically test the proposed model, a survey was conducted and 140 samples were collected. The result of this study shows price has a significant effect on purchasing intention through perceived risk. This result also shows service and reputation have an insignificant relationship with perceived risk. Therefore, online group-buying retailers should not only focus on making money from the business but also consider how to keep consumers for future business.

Model and Heuristics for the Heterogeneous Fixed Fleet Vehicle Routing Problem with Pick-Up and Delivering

Zhai Shuai,Chao Mao 한국유통과학회 2012 한국유통과학회 학술대회 논문집 Vol.2012 No.-

This paper discussed the heterogeneous fixed fleet vehicle routing problem with pick-up and delivery, which different type vehicles have different capacities, fixed costs and travel costs. A more practical mathematical model was established and because the NP-hard, we improved the traditional simulation annealing algorithm and test the new algorithm through a certain scale example. The results show that the new algorithm can obtain better solution, better stability. Through comparing the results of HFFVRP and HFFVRPPD, this paper illustrates the advantages of using HFFVRPPD for physical distribution enterprises in saving distribution vehicles, reducing logistics cost and raising economic benefits.

The Financial Strategic Consistence and Firm Performance: Evidence from Manufacture Industry in China

Zhai Shuai,Mao Chao 한국회계정보학회 2012 회계정보연구 Vol.30 No.4

Firm strategy expresses a basic idea of how to reach firm’s objectives. Financial strategy, as a functional strategy, is subject to the overall firm strategy. The financial strategy plays an important role in firm strategy. This paper formulates a theoretical model to explain why target shareholders under corporate control contests allow their managers to play the role of a gatekeeper despite the conflicting incentive of the managers to resist takeover attempts that might increase firm value. The paper claims that sometimes the existence of a manager with a conflicting goal can contribute to enhancing the welfare of his shareholders under a corporate control contest where bidders have the choice of takeover methods. We set up a game-theoretical model and derive a separating equilibrium where bidders with higher synergy prefer a tender offer to a merger, and the bidders are forced to pay a higher takeover premium in a hostile tender offer due to the existence of informed target managers who can make counter offers under a merger deal.

Analysis on Spillover Effect of Share Price and Volatility

Zhai Shuai 한국유통과학회 2014 한국유통과학회 학술대회 논문집 Vol.2014 No.-

With TGARCH model, this paper empirically examines the spillover effect of price and volatility among the two markets using sample of 18 dually-listed stocks' daily data from mainland and Hong Kong Stock Exchanges. We get the conclusion as follows: Return of half dually-listed A shares are in line with the Hong Kong market and the opposite influences are different due to different stocks; spillover effect exists among the two markets, the volatility of Hong Kong market is influenced by the mainland market more obviously than Hong Kong market to mainland market; information asymmetry is obvious among the two markets; good information has a leverage effect, and good information of A share market hasa more notable effect to Hong Kong market in volatility effect than Hong Kong to A share market.

Model and Heuristics for the Heterogeneous Fixed Fleet Vehicle Routing Problem with Pick-Up and Delivery

Shuai Zhai,Chao Mao 한국유통과학회 2012 유통과학연구 Vol.10 No.12

Purpose – This paper discusses the heterogeneous fixed fleet vehicle routing problem with pick-up and delivery (HFFVRPPD), for vehicles with different capacities, fixed costs, and travel costs. Research Design, data, methodology – This paper made nine assumptions for establishing a mathematical model to describe HFFVRPPD. It established a practical mathematical model, and because of the non-deterministic polynomial-time hard (NP-hard), improved the traditional simulated annealing algorithm and tested a new algorithm using a certain scale model. Result – We calculated the minimum cost of the heterogeneous fixed fleet vehicle routing problem (HFFVRP) with a single task and, on comparing the results with the actual HFFVRP for the single task alone, observed that the total cost of HFFVRPPD reduced significantly by 46.7%. The results showed that the new algorithm provides better solutions and stability. Conclusions – This paper, by comparing the HFFVRP and HFFVRPPD results, highlights certain advantages of using HFFVRPPD in physical distribution enterprises, such as saving distribution vehicles, reducing logistics cost, and raising economic benefits.

A Trajectory Tracking Method for Wheeled Mobile Robots Based on Disturbance Observer

Shuai Wang,Junyong Zhai 제어·로봇·시스템학회 2020 International Journal of Control, Automation, and Vol.18 No.8

In this article, an adaptive tracking control method is proposed for wheeled mobile robots (WMR). In thetrajectory tracking control of WMR, skidding and slipping are taken into account, and the slip degree parameters areintroduced. The disturbance observer is designed to estimate the total disturbances. Then, we design the adaptivecontroller to guarantee that the tracking errors asymptotically converge to zero, the stability of the system is provedby Lyapunov theory. Finally, the simulation results are provided to demonstrate the effectiveness of the proposedscheme.

An Empirical Study on the Export and Import Effects of Foreign Direct Investment on the Blue Economic Zone of the Shandong Peninsula in China

이성준,Shuai Zhai 한국유통과학회 2013 유통과학연구 Vol.11 No.1

Purpose - During a reform period lasting 30 years, the Blue Economic Zone (BEZ) in the Shandong Peninsula has made progress in attracting foreign investment, and has acquired the foreign direct investment (FDI) essential for economic growth. It is therefore important to conduct a proactive and systematic study of FDI in the BEZ. Research design, data, methodology - This dissertation discusses the contribution of FDI on economic growth, from both a theoretical and empirical perspective. Taking seven core cities for study, statistics and econometrics are used, and panel data are used to validate FDI contribution to import and export in the BEZ. Results- FDI was found to exert both positive and negative influences on the imports and exports of the BEZ. In other words, the research findings are consistent with Trade Generated and Inverse Trade Generated theories put forward by Kojima and Mundell, among other researchers mentioned earlier in this paper. Further, FDI has greatly increased imports and exports for the BEZ. Conclusions - According to the results of this empirical study on local investment environment optimization, FDI plays an important role in foreign trade. This dissertation puts forward recommendations on using FDI to better promote economic growth in the BEZ.

The Effects of County-of-Origin, BrandImage, and Corporate Image Dimensions on Brand Evaluations and Purchase Intentions of Smart Phones of Five Brands: A Comparative Study of China and Korea

Li Mo,Shuai Zhai 한국유통과학회 2013 유통과학연구 Vol.11 No.7

Purpose - In the academic literature, the researches on a comparative study on purchase behaviors of the consumers from emerging and mature markets remain limited. Therefore, this empirical study is attempted to examine the effects of country of origin (COO), brand image and corporate image on the purchase behavior of Chinese consumers (as from emerging market) and Korean consumers (as from mature market). Research Design, data, methodology - In total, 615 valid questionnaires were collected from the main cities of China and Korea respectively,and a multiple group analysis was conducted to test the hypotheses with SPSS 16.0 and AMOS18.0. Results - Chinese consumers are not influenced by country-of-origin effect, whereas Korean consumers are sensitive to it. Both Chinese and Korean consumers are sensitive to brand image, whereas corporate image does appear to influence Chinese consumers but not Korean consumers. The effects of country-of-origin are not more influential in less developed market (China) than more developed market (Korea). Conclusions - According to the results of this empirical study, the country-of-origin effect does impact Korean consumers but not Chinese consumers’ purchase behavior. Therefore, multinational companies are relatively free to make the decision, if Chinese consumers are the marketing targets, when choosing manufacturing sites.

Significantly enhanced antifouling and separation capabilities of PVDF membrane by synergy of semi-interpenetrating polymer and TiO2 gel nanoparticles

Yongdi Ma,Xi Chen,Shuai Wang,Hualin Dong,Xiaoying Zhai,Xin Shi,Jianzu Wang,Rujiang Ma,Wangqing Zhang 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.108 No.-

PVDF membrane has strong hydrophobicity and low anti-pollution performance, greatly limiting its practicalapplication. These drawbacks have been successfully overcome by designing and then preparing amembrane with a semi-interpenetrating polymer (semi-IPN) of PVDF/poly(acrylic acid) (PAA) as themembrane matrix, TiO2 nanoparticles as functional components and F127 as pore-forming agent. Thesemi-IPN was prepared by copolymerizing acrylic acid with N,N methyl acrylamide in the presence ofPVDF, and the TiO2 gel nanoparticles were in situ formed in the membrane-forming process. The propertiesof the composite membrane were significantly affected by the semi-IPN, F127 and TiO2. By adjustingthe membrane structure with the semi-IPN, F127 and TiO2 nanoparticles, we prepared a composite membranewith a water contact angle of 40, a BSA rejection ratio of 87.5% and a water flux of 802.5 L/m2/h/bar. After a simple UV irradiation, the water flux of this composite membrane rose to 1030 L/m2/h/bar,without any rejection decline. The membrane contaminated by humic acid could recover the water fluxup to above 95.3% of its original value by a single UV irradiation, showing a very good antifouling performance. In addition, the composite membrane also exhibited a very strong pollution resistance and separationperformance for bovine serum albumin and oil-water emulsion. All in all, based on the synergy ofthe semi-IPN and the evenly dispersed TiO2 nanoparticles, the prepared composite membrane exhibitedexcellent comprehensive properties and demonstrated a great potential for various separationapplications.

중국 산동반도 BEZ에 대한 FDI의 기술발전 효과에 관한 실증 분석

이성준 ( Sung Joon Lee ),적수 ( Shuai Zhai ) 한국유통경영학회(구 한국유통정보학회) 2012 유통정보학회지 Vol.15 No.6

30년 전에 개혁개방(改革開放)이 시작된 이후 외국인직접투자(Foreign Direct Investment: FDI)가 지속적으로 증가하여 경제발전에 크게 기여를 하였다. 그리고 2001년에는 처음으로 미국을 뛰어넘어 세계 제1의 투자 유 치국이 되었다. 산동성은 중국이 외국인직접투자를 유치하는 과정에서 지속적으로 중요한 역할을 담당하였다. 중국 산동성은 중국 동부연해 황하하류에 위치하고 한국과 바다를 사이에 두고 서로 마주보고 있기 때문에 지리적으로 매우 근접해 있다. 산동반도 블루경제구역(BEZ)은 중국 정부에서 2011년 l월4일에 두 차례에 걸쳐 해양경제의 발전, 해양자원의 과학개발, 해양우수산업 육성을 통해 ``산동반도 해양 경제 구``를 구축할 계획이다. "산동 반도 블루경제구역 발전계획"을 토대로 산동성은 향후 해양정제를 주요 성장동력으로 하는 중국의 핵심 경제구역으로 성장할 전망이다. 본 논문에서는 FDI와 산동반도 BEZ의 결합, 산통반도 BEZ에 FDI가 미치는 영향 및 효과를 분석 하는데 연구목적을 두고, FDI가 산동반도 BEZ의 기술발전에 미치는 효과를 분석하였다. 이와 같은 분석을 통해 향후 산 동성 정부의 BEZ 외자유치 증대 방안을 제시하고 나아가 산동반도 BEZ에 투자활 기업에게는 투자전략에 참고자료를 제공하고자 하였다. 본 논문에서 분석하기 위한 기본 자료는 산 동성 통계연감과 산동반도 BEZ의 7개 도시 통계국에서 발표한 1992년부터 2011년 12월까지 자료 등을 활용하고, Eviews 6.0을 통하여 모형을 분석하고자 한다. FDI inward is studied and recognized by more and more foreign and local scholars. Over 30 years of reform, Blue Economic Zone of Shandong Peninsula made an outstanding contribution in attracting foreign investment and showed a certain degree of FDI, which plays an important role in economic growth. So it is valuable and significant to make a proactive and systematic study for FDI inward in the BEZ of Shandong Peninsula. This dissertation discusses the contribution of FDI inward on the economic growth theoretically and empirically, which takes seven core cities as research subjects and statistics, econometrics, as guide, using Panel data to validate contribution of the FDI inward on technology progress of the BEZ of Shandong Peninsula. It draws conclusion that FDI plays an important role in technology progress, this dissertation proposed recommendations on how to use FDI inward better to promote economic growth the BEZ of Shandong Peninsula.