Research on Government Subsidy Strategies for the Development of Agricultural Products E-Commerce

In many countries, the governments support the development of local agriculture through subsidization. Subsidizing the sales of agricultural products through E-commerce channels is a way to support the development of agriculture in China. This study aims to develop a profit model and apply Stackelberg game theory to determine which type of subsidies and decision-making can provide the maximum benefits for agricultural products E-commerce supply chains. The results indicate that for both centralized decisions and decentralized decisions, the subsidizing to the agricultural cooperative is better than the subsidizing to consumers and no subsidization. The sales volume, preservation level, sales efforts, and overall profit of the agricultural products E-commerce supply chain are significantly higher. It suggests that the government should play a leading role to support the development of agricultural products E-commerce. This study contributes to agricultural research by developing a profit model to examine the effects of different government subsidy strategies on each member of the agricultural online shopping supply chain. Recommendations are provided for agricultural cooperatives, E-commerce platforms, and the government to improve the quality and sales of agricultural products through online shopping channels.

A Generalized Stochastic Cost–Volume–Profit Model

Cost–volume–profit (CVP) analysis is a widely used decision tool across many business disciplines. The current literature on stochastic applications of the CVP model is limited in that the model is studied under the restrictive forms of the Gaussian and Lognormal distributions. In this paper we introduce the Mellin Transform as a methodology to generalize stochastic modeling of the CVP problem. We demonstrate the versatility of using the Mellin transform to model the CVP problem, and present a generalization of the CVP model when the contribution margin and sales volume are both defined by continuous random distributions.

Why Do Viewers Engage in Video Game Streaming? The Perspective of Cognitive Emotion Theory and the Moderation Effect of Personal Characteristics

Video game streaming (VGS) has attracted millions of users and shown unprecedented growth globally. With technological development, these appealing media have largely influenced the sustainable development of society and the economy. VGS creates a pleasant atmosphere and provides various novel features to please the viewers, induce positive emotions, and facilitate users’ engagement. Integrating several personal characteristics as moderators, this study applied cognitive emotion theory to explore the antecedent of viewers’ engagement in VGS. Using 308 empirical data, the research results reveal that broadcaster attractiveness and the para-social relationship are positively associated with the viewers’ positive emotion, which eventually leads to engagement. In addition, personal characteristics play significant roles as moderators between VGS features and the viewers’ positive emotions. The results provide theoretical implications for VGS research and useful insights for VGS platform managers and policymakers to enable a sustainable profit model and the growth of VGS.

An Intelligent Caching and Replacement Strategy Based on Cache Profit Model for Space-Ground Integrated Network

Compared with the stable states of the ground networks, the space-ground integrated networks (SGIN) have limited resources, high transmission delay, and vulnerable topology, which make traditional caching strategies unable to adapt to the complex space network environment. An intelligent and efficient caching strategy is required to improve the edge service capabilities of satellites. Therefore, we investigate these problems in this paper and make the following contributions. First, the content value evaluation model based on classification and regression tree is proposed to solve the problem of “what to cache” by describing the cache value of content, which considers the multidimensional content characteristics. Second, we propose a cache decision strategy based on the node caching cost model to answer “where to cache.” This strategy modified the genetic algorithm to adapt the 0-1 knapsack problem under SDN architecture, which greatly improved the cache hit rate and the network service quality. Finally, we propose a cache replacement strategy by establishing an effective service time model between the satellite and ground transmission link, which solves the problem of “when to replace.” Numerical results demonstrate that the proposed strategy in SGIN can improve the nodes’ cache hit rate and reduce the network transmission delay and transmission hops.

Understanding the Economic Sustainability Model for Urban Rail Transit Operator: A TOD Perspective

With the growth of urban rail transit construction and operation scales，it is necessary to strengthen and deepen the studies on urban rail transit enterprise economic sustainability model. From the theoretical and practical angles, this paper reviewed the exploration and practice process of urban rail transit enterprise economic sustainability model, including the connotation of “metro operation + property development” profit model, as well as further studies and prospect. It suggests TOD model can improve the economic sustainability capability of urban rail transit enterprise, and set up a self-virtuous development cycle in rail transit industry.

FROM LINEAR TO CIRCULAR ECONOMY: THE ROLE OF REGIONAL AWARENESS AND INITIATIVES

Although many OECD countries are working on it, the economy is only slowly developing from linear to circular. However, many economists are convinced that this is the only viable path if we want to prevent a climate catastrophe by 2050 and thereby leave a habitable and developable world for the next generations. Numerous articles in the press point out that many companies are only at the beginning of a gigantic effort to make their production CO2 neutral but also sustainable and that a lot of innovation will be needed before that happens. So, what are the reasons why the transition towards a circular economy is so difficult to make? The European Academy of the Regions, that advocates the regionalisation of a number of economic and socio-cultural sectors, closely follows the development of the circular economy. Since the beginning of May 2021, it has therefore set-up a blog in which newspaper articles are translated from various countries to English with examples of successful circular economy initiatives or of critical studies: earaercircular.tumblr.com. To date, the organisation made a statistical study on the 100 selected articles[1] published between 3/5/2021 and 3/9/2021 that will give the reader an idea of the themes that are most frequently discussed and of the remedies that are created. The articles come from newspapers and magazines from Belgium (Dutch and French), the Netherlands, Germany, Spain and the US and to a lesser extent from Switzerland, Canada and France. The results of this research are an overview of the topics covered, of indications of how initiatives are created, who is the influencer as well as an overview of the articles that have received more than 100 clicks on social media. It has been striking that many of the initiatives described by the press have arisen from companies whose top management is aware of the bend that urgently needs to be made and who also see commercial opportunities to start early. There are also a number of cooperative initiatives, that still succeed in creating successful initiatives from a small-scale approach. A second important player in this conversion is the academic world, especially faculties or even entire universities that have been conducting research into new materials or new applications for a long time. The traditional third player are the authorities, but very often regional governments or large cities. The conclusion remarks show that circular economy can only be successful if companies see a profit model in it, or are forced to change their course by public opinion because of negative perception and that we are not yet there.

Electric vehicles as distribution grid batteries: a reality check

The current transition towards electric mobility implies that a significant portion of electricity is drawn by and stored in the electric vehicle’s (EV) batteries. Vehicle-to-grid (V2G) technologies can potentially give distribution system operators access to such energy to provide ancillary services, while remunerating the vehicle owners for their availability to participate. Although the benefits of stabilization and grid efficiency improvements are clear, is it appealing and lucrative for the vehicle owners to participate in such services? In this work, we answer this question by modelling the V2G system and performing economic projections of the possible benefits for EV owners. In particular, we present a novel way of parametrizing the electric vehicle driving profile and the V2G energy transfer to compute battery degradation costs. A profit model is developed to evaluate the profit earned by the vehicle owners offering their batteries. The profit is estimated on the basis of the owner’s inclination to buy and sell energy from the grid based on the electricity price. Using data of the German electricity market, we estimate a profit of 662 €/EV/Year for a vehicle with 100 kWh capacity, 95% battery round trip efficiency and driving 52 km per day. The remuneration is meaningful and can have the potential to encourage EV owners to participate in V2G service.

Monetary Reform of G.Ya. Sokolnikov

The article covers the transformations in the sphere of commodity-money relations during establishment of Soviet power. The period under review starts from the chaotic monetary policy in the first post-revolutionary years with attempts to abandon money exchange to the period of creating stable money circulation in the country. NEP brings positive changes, when trade resumes, monetary wages are required, and a for-profit model (khozraschyot) is established. Theoretically, the advantage of a fixed equivalent of value is proved, and stable money is needed, the basis of which is gold. The State Bank is restored. It becomes possible to issue a bank card backed by gold. Under the People's Commissariat of Finance, a Currency Department is created. G. Ya. Sokolnikov is appointed to the post of People's Commissar, a group of specialists is selected, among them N. Kutler, L. Yurovsky, V. Tarnovsky. The reform begins with the implementation of two denominations that have eliminated many varieties of banknotes and reduced their number. The chervonets becomes the main monetary unit, which has a gold content and security. In 1924, the reform is completed. The Soviet Union is able to restore the national economy. The article states that the reform proved the viability of the Soviet currency, as well as the high qualification and theoretical training of its performers. Being in more difficult conditions than other countries participating in the First World War, the Soviet Union carried out monetary reform before them and with a higher result.

Establishment and Evaluation of Energy Consumption, Carbon Emission, and Economic Models of Retreaded Tires Based on Life Cycle Theory

This paper identifies the system composition of the life cycle of retreaded tires and constructs the energy consumption model, carbon emission model, and economic model of retreaded tires based on the life cycle theory. Moreover, the theoretical calculation model and method for the energy consumption, carbon emission, and economy at the production phase, transportation phase, usage phase, and reuse phase of retreaded tires are proposed. After that, this paper puts forward the energy substitution model, carbon reduction model, and cost profit model of five reuse methods of retreaded tires, namely, secondary retreading, mechanical pulverization, low-temperature pulverization, combustion decomposition, and combustion power generation. Finally, this paper proposes the evaluation index for the energy consumption, carbon emission, and economy in the life cycle of retreaded tires and quantitatively analyzes the energy consumption, carbon emission, and cost profit list in each phase of the life cycle of retreaded tires, obtaining the energy recovery rate, carbon reduction rate, and profit-to-cost ratio of the five reuse methods of retreaded tires. The main conclusions of this paper are as follows: the energy consumption and carbon emission of retreaded tires are the largest at the production phase, while the energy consumption and carbon emission are the lowest at the transportation phase. Among the five reuse methods, the energy recovery effect, carbon reduction rate, and economy of secondary retreading are the optimal ones, and the quantitative results show that retreading is the most effective way for the reuse of waste tires.