How Far Can Chinese Motorcycles Roar？——A Study on Motorcycle Export of China

Export of Chinese motorcycles increased dramatically in the past few years. This growth, however, is encountered with many fatal problems, such as over-intensified export market, low value-added, overwhelming fake commodities, awkward technology innovation and intellectual property rights protection, bitter competition from foreign counterparts, and anti-dumping charges by foreign countries, etc. This paper sheds light on these problems and challenges and puts forward suggestion accordingly.     

裂变营销属性：电商平台的创新、违法与传销犯罪

在“流量经济”与“用户思维”加持下,传销形态已发生异变。对于裂变营销属性的认定,应当通过非法传销的实质解读,提炼出传销的元模型,将具有非法传销外观的营销创新予以剥离,形成“拉人头+团队计酬”以及“收取入门费+团队计酬”的二元类型。同时,借助缓和的违法一元论,透视裂变营销中传销违法向传销犯罪的转化逻辑,明确二者之间“质”与“量”的区别。当本罪与诈骗犯罪或集资犯罪发生竞合时,应当充分发挥想象竞合的“明示机能”实现全面评价,并择重处罚。     

会计人员心理与会计违规行为——一个基于治理会计违规行为的分析视角

本文运用管理心理学理论,对会计人员心理与会计违规行为之间的深层内涵进行了分析,揭示了会计违规行为是外部环境和会计人员主观心理相互作用的结果。并指出治理会计违规行为的方法是减轻外部环境给会计人员造成的心理压力及对其各种需要的威胁,同时,还要重视会计人员正确价值观的塑造和健康心理的培育。     

Comparing Environmental Policy Instruments in the Presence of Imperfect Compliance – A Case Study

In this paper, we aim to include rule making, implementation, monitoring and enforcement costs into the cost comparison of policy instruments. We use a simple partial equilibrium model and apply it to the textile industry. The model includes discrete abatement functions and costly monitoring and enforcement. The case study uses individual firm data to simulate the differences in abatement costs and compliance decisions between firms. We compare combinations of regulatory instruments (emission taxes, emission standards and technology standards) and enforcement instruments (criminal fines, civil fines and transaction offers). We show that the inclusion of information, monitoring and enforcement costs indeed alters the relative cost efficiency of the different instruments.     

Simultaneous Estimation of Legal and Illegal Supply and Demand: The Case of Motion Pictures

Prior research into illegal goods has typically looked at one-way effects, such as illegal demand on legal demand. This research investigates a previously unexamined component of the market, illegal supply. The authors examine the supply and demand of legal goods and their illegal counterparts as a market system of four interdependent components. This research makes theoretical and empirical contributions by evaluating illegal supply in this system. Simultaneous equations estimate each market component on the others using data from the motion picture industry. The results find illegal supply has no effect on legal supply (movie screens), positive effects on illegal demand (piracy downloads), and some effect on legal demand (box office revenues). Timing effects highlight this: illegal supply has a positive effect on legal demand during a film’s opening week, but no effect post-launch. The other market components have positive effects on illegal supply (except legal supply, which is negative in the opening week). Additionally, illegal demand has a negative effect on legal demand during the opening week of release, but not in the subsequent weeks. This finding alleviates prior research tension as to whether piracy helps or hurts legal sales, as omitting illegal supply could result in biased estimates.     

出租汽车计价器加密传感器设计

文章对出租汽车计价器加密传感器的加密原理、几种入侵方式进行分析。     

Dually sustainable urban mobility option: Shared-taxi operations with electric vehicles

Electric vehicles (EVs) are energy efficient and often presented as a zero-emission transport mode to achieve long-term decarbonization visions in the transport sector. The implementation of a sustainable transportation environment through EV utilization, however, requires the addressing of certain cost and environmental concerns such as limited driving range and battery-charging issues before its full potential can be realized. Nevertheless, a specific type of use of EVs, namely in taxi services, may elicit positive public opinion, as it promises a commitment toward sustainability in urban life. In light of this, this study proposes an integrated approach that combines EV operation with a conceptual design for shared-ride taxi services. As some productivity loss may be naturally expected due to the time spent in charging, it is important to look at whether such performance loss from the passenger and system standpoints can be offset with ingenuity in operational design. In this study, an EV taxi charge-replenishing scheme that can be coupled with a real-time taxi-dispatch algorithm is designed. The proposed EV charging schemes for taxi services are studied via simulations and the effects of the limited driving range and battery-charging details are examined from a system performance viewpoint. The simulation study also reveals illustrative results on the impact of the EV taxi fleet's operation on the charging system. Next, a real-time shared-taxi operation scheme that allows ride sharing with other passengers is proposed to maximize the operational efficiency. The simulation results suggest that the shared-taxi concept can be a viable option to improve on the limitations caused by EV operation. In addition, the importance of projected charging demands and queue delays at different charging locations are also addressed. Some limitations and a future research agenda are also discussed.     

Revealing travel patterns and city structure with taxi trip data

Delineating travel patterns and city structure has long been a core research topic in transport geography. Different from the physical structure, the city structure beneath the complex travel-flow system shows the inherent connection patterns within the city. On the basis of taxi-trip data from Shanghai, we built spatially embedded networks to model intra-city spatial interactions and to introduce network science methods into the analysis. The community detection method is applied to reveal sub-regional structures, and several network measures are used to examine the properties of sub-regions. Considering the differences between long- and short-distance trips, we reveal a two-level hierarchical polycentric city structure in Shanghai. Further explorations of sub-network structures demonstrate that urban sub-regions have broader internal spatial interactions, while suburban centers are more influential on local traffic. By incorporating the land use of centers from a travel-pattern perspective, we investigate sub-region formation and the interaction patterns of center–local places. This study provides insights into using emerging data sources to reveal travel patterns and city structures, which could potentially aid in developing and applying urban transportation policies. The sub-regional structures revealed in this study are more easily interpreted for transportation-related issues than for other structures, such as administrative divisions.     

Study of emerging air taxi network operation using discrete-event systems simulation approach

This research focuses on understanding the air taxi operations to determine the number of air taxis required to fulfill the demand for urban air mobility in New York City (NYC). We leverage the Define, Measure, Analyze, Design, and Verify (DMADV) framework and integrate it with the systems simulation approach. Upon investigation, we find that all the parameters linearly impact the vehicle utilization, while other measures are robust, specifically with respect to the seating capacity. It is also recommended to operate initially with 70 air taxis in NYC to achieve a trade-off between customer wait time and vehicle utilization. The proposed approach can act as a recommender system for air taxi companies.     

恶意挤占医保基金的经济学分析

导致医保基金存量减少的原因可以分为两类,一类由客观原因导致,并且难以避免,另一类是人为因素造成的恶意挤占医保基金的行为。针对后一种情况,从经济学角度,首先运用产权理论的观点来分析制度本身的缺陷,再通过建立两个博弈模型来分析当事人投机心理的形成过程,并提出相应解决措施。