Optimal social welfare:A many-to-many data transaction mechanism based on double auctions

With the development of Big Data and the Internet of Things(IoT),the data value is more significant in both academia and industry.Trading can achieve maximal data value and prepare data for smart city services.Due to data's unique characteristics,such as dispersion,heterogeneity and distributed storage,an unbiased platform is necessary for the data trading market with rational trading entities.Meanwhile,there are multiple buyers and sellers in a practical data trading market,and this makes it challenging to maximize social welfare.To solve these problems,this paper proposes a Social-Welfare-Oriented Many-to-Many Trading Mechanism(SOMTM),which integrates three entities,a trading process and an algorithm named Many-to-Many Trading Algorithm(MMTA).Based on the market scale,market dominated-side and market fixed-side,simulations verify the convergency,economic properties and efficiency of SOMTM.

Empirical analysis of carbon tariff's effect on the export structure of China's manufacturing industry and social welfare based on the GTAP model

In recent years,carbon emissions have gradually evolved from an environment issue into a political and economic one.Carbon tariff has brought about new trade barriers of developed countries,and in order to enhance the industrial competitiveness of developed countries,it will produce unfavorable impact on developing countries.Concentrated on the manufacturing industry,which is the most intensive high-carbon industry in China's export structure,this article studies the relationship between carbon tariff policy and industry structure of export trade and builds up a relation between climate change and international trade.First,by means of establishing a partial equilibrium model,it applies geometric analysis and mathematical analysis to compute the impact on China's manufacturing export trade and the consequences of the introduction of the US carbon tariff to China's manufacturing industry that has already imposed a domestic shipping carbon tax.Furthermore,with the application of the GTAP model,it estimates the overall economic and welfare effects on China's manufacturing industry if the US and Europe introduce carbon tariff by means of four ways,and then analyzes the influence on China's manufacturing industry export structure and social welfare as well.The result shows that the introduction of the US carbon import tariff lowers China's export price and export volume,and the implementation of a domestic carbon tax justifies a higher export price and a lower export volume for China.However,the degree of export reduction is smaller than that under the effect of the US carbon tariff.In the case of developed countries imposing carbon tariff on China's energy-intensive industries,such as chemical rubber products,oil and coal-processing industry and paper industry,whose export would be reduced,the negative impact on the paper industry is the severest,which will decrease the paper industry's export ranging from 1.79%to 6.05%,whereas the other industries' export will increase.Anyhow,it will promote China's manufacturing industry to adjust the export structure to a certain extent.In addition,it will lead to a decrease in China's welfare,with a decrease between $2,134 billion and $8,347 billion.Finally,this paper provides information on international coordination,export structure adjustment and green manufacturing adjustment as a reference for the development of China's manufacturing industry.

Welfare Balance of Different Interest Groups During Rural-urban Land Conversion

Rural-urban land conversion is currently a common social economic phenomenon during the process of economic development and rural urbanization in China. Rural-urban land conversion is positively effective as far as social and economic benefits are concerned (Yang, 2002), but its negative effect is also evident, resulting in such problems as low efficiency of rural land configuration and loss of social welfare. Consequently, farm-ers should also have an equal chance to enjoy the social welfare enhanced by land conversion. Based on the theories of welfare economy, this paper puts forward policy suggestions by discussing the welfare changes of various interest groups, builds the model of welfare distribution, and analyzes the conditions of maximizing social welfare. The absolute and opposite value of social welfare is closely related with the speed of rural-urban land conversion, and governments should give farmers and collectives fair compensa-tion to make up for the utility loss caused by land expropriation, which are conclusions drawn from this paper. This study aims to provide a theoretical basis for regulating targets and evaluation criteria, realizing the mechanism and implementation of public po-lices during rural-urban land conversion.

Multi-objective Programming and Social Welfare Analysis of Rural–urban Land Conversion Decision-making

Rural-urban land conversion is an inevitable phenomenon in urbanization arid industrialization. And the decision-making issue about this conversion is multi-objective because the social decision maker （the whole of central government and local authority） has to integrate the requirements of different interest groups （rural collective economic organizations, peasants, urban land users and the ones affected indirectly） and harmonize the sub-objects （economic, social and ecological outcomes） of this land allocation process. This paper established a multi-objective programming model for rural-urban land conversion decision-making and made some social welfare analysis correspondingly. Result shows that the general object of rural-urban land conversion decision-making is to reach the optimal level of social welfare in a certain state of resources allocation, while the preference of social decision makers and the value judgment of interest groups are two crucial factors which determine the realization of the rural-urban land conversion decision-making objects.

The social welfare effect of forest certification under environmental spillovers

Forest certification has positive environmental spillovers.Considering environmental spillovers,this study ana‐lyzed the social welfare effects of forest certification using partial and general equilibrium methods.The re‐sults of the partial equilibrium analysis showed that social welfare in producing countries tended to increase under the market expansion of certified forest products.The general equilibrium analysis results indicated that,in autarky,or economic independence,the production amount of certified forest products could increase.If conventional forest products are imported and certified forest products are exported,then the level of utility in free trade condition is greater than that in autarky.If conventional forest products are exported and certi‐fied forest products are imported,then the price of imported products must be compared with the price of the autarky domestic market to determine the utility level of free trade and autarky.If the price of certified prod‐ucts is less than the price at the time of autarky,then the total utility level increases;otherwise,it decreases.The social welfare effect of forest certification can be increased through expanding the market demand of cer‐tified products and giving these products subsidies in production and price incentives in importing.

Notions of Free Market and Social Welfare in Islamic Economics

Trading and business in Islam has been identified as the second best profession after agriculture and Prophet Muhammad （PBUH） himself has been engaged in trading. The Islamic theory of market aims to provide optimization of returns and satisfaction for all stakeholders. It also seeks to make ＂free market＂ an instrument of promoting equity and social justice for the welfare of society. It combines tenants from the free market model as well as those in command market economy. Islamic economics identifies certain functional parameters for the efficient functioning of the market to achieve the optimization of returns and social welfare like absence of middle men, prohibition of hoarding, mode of finance free from interest and usury, taxation and other wealth redistribution instruments like Zakat and Khums, asset-based and risk-sharing partnerships and stakes, etc.. It essentially creates conditions for proper functioning of a competitive market as an instrument of economic progress and social equity. In Islamic economics, the role accorded to the state is to ensure that institutions are set up and vigilance officers are appointed which create the specified condition for the proper and fair functioning of the market and hence preventing what is identified as ＂market failure＂. The role of the state is to improve the functioning of the market as opposed to that of systematic intervention. This paper tries to examine the Islamic notions of ＂free market＂ in the traditional sources like Qur＇an, Hadees, the early texts of Islamic Jurisprudence, and contemporary writings on Islamic economic system and to make a comparative analysis with theories of market in capitalist and socialist frameworks. The paper will examine the extent to which Islamic notions of free market offer an alternative model to resolve the problems of growth, inequity, and risk management.

Changes in social welfare party leadership since the reform and opening up

The planned economy period after the founding of New China, there are a number of defects caused by the social welfare system of the country arranged the comprehensive safeguards, cannot meet the needs of the members of the community welfare. Since the reform and opening up, under the leadership of the Communist Party of China, China＇s social welfare undertakings made progress in the reform, old-age benefits, disability benefits, women＇s welfare, child welfare and so on can be further developed. In aging relatively serious today, social pension needs of rapid growth, the urgent need to support the people＇s participation and social forces, to promote the socialization of social welfare, accelerate the development of social welfare, the early establishment of an appropriate type social welfare undertakings Pratt ＆ Whitney.

The research on the welfare of the China disabled children

The disabled children are a special people; but we pay little attention to them. At the same time, we study the welfare of the disabled children very little. As many problems on the disabled children presented in front of people, their welfare are generally put forward. The proportion of the disabled children＇s welfare is relatively small in the social welfare system of china; paying attention to the disabled children＇s welfare of china; getting to know the present situation of the disabled children＇s welfare of china and establishing the disabled children＇s welfare pattern of china based the present situation of the disabled children＇s welfare of china will be good for the rescue of the disabled children of china. That can give them a hand to make them live in a good living environment. Improving and perfecting the system of the disabled children＇s welfare of china; safeguarding the rights and interest of the disabled children of china; forming a good social atmosphere; building a harmonious society and improve the level of civilization are the benefit of the new system.

Analysis of Intermediate Product Price and Social Welfare in the Vertical Merger of Enterprises

According to the different products that two upper enterprises produce, this paper analyzes the transfer pricing of intermediate product and the effect of social welfare of vertical merger under imperfect competition market. The conclusions are: the transfer pricing of intermediate product is equal to marginal cost; the perfect outputs that upper enterprises sell to the market before and after the vertical merger of enterprises are the same; the product price in the integrated enterprises may be higher, lower or equal to the price in non-integrated enterprises.

Resource Trading and Miner Competition in Wireless Blockchain Networks with Edge Computing

To promote the application of edge com-puting in wireless blockchain networks,this paper presents a business ecosystem,where edge comput-ing is introduced to assist blockchain users in imple-menting the mining process.This paper exploits re-source trading and miner competition to enable se-cure and efficient transactions in the presented busi-ness ecosystem.The resource trading problem is for-mulated as a Stackelberg game between miner candi-dates and edge computing servers,where computing,caching,and communication resources are jointly op-timized to maximize the potential profit.Partial of-floading is introduced to further enhance the system performance when compared with the existing work.We analyze the existence and uniqueness of the Nash equilibrium and Stackelberg equilibrium.Based on the optimization result,winners are selected from the set of miner candidates by bidding and constitute the mining network.Simulation results demonstrate that the proposal is able to improve the social welfare of blockchain miners,thus stimulating more blockchain users to join the mining network.

R & D Strategy of High Technology Industry

In a symmetrical static game model, this paper is mainly concerned with the research and development (R&D) strategy of the High Technology (HT) industry and the society's optimal R&D level given the investment revenue. We obtain different investment decision with different amount of firms engaging in the R&D and each firm's expected profit respectively. When the risk (the probability each firm succeed) is not random, it's socially desirable to have more firm engaging in R&D if and only if the relationship among the invest cost, the probability and the prize satisfies some condition, that is, Eπ s(n)≥Eπ s(n-1)I≤α(1-α) n-1 V . When the R&D cost I is certain, more prizes or higher probability will make more firms engage in the R&D and higher prize makes it's socially desirable to have more firm invest in R&D.

Mixed oligopoly,foreign penetration,and environmental taxes

This paper examines the impact of foreign penetration on the public firm in a mixed oligopolistic market. Through the establishment of a mixed double oligopoly market, this paper analyzes how the share of foreign investment affects the environmental policy, the pollutant emission, and the social welfare under the condition of the state tax. The results show that: first, the introduction of foreign investment has some crowding-out effects on the social level of output. Second, the entry of foreign investment increases the profit of the public firm by a large margin, and the maximum profit of the private firm has been reduced. Third, the increase of foreign investment in public firm does not necessarily improve the environment.

A Factor Analysis of the Tourism in the Mexican Province of Michoacan

The tourism is a key branch in the world wide economy nowadays, and revenues account for one third of total income in the world. Many nations are trying to improve their tourism sector attracting more tourists every year in order to impact social welfare. This study addresses two research questions： （1） What are the factors that impact on tourism sector？ and （2） Does the tourism really impact on social welfare of the communities？ The objectives of this work are to analyze the variables that impact on the tourism in the Mexican providence of Michoacan and also to find out if the tourism sector is impacting on social welfare of the province, with the propose of answering this questions 41 variables were selected being 63 municipalities of Michoacan province in the case of study. Analysis Factorial of Correspondences （AFC） through the analysis of principal components methodology is employed in this article. The analysis is divided into five phases： （1） reliability testing; （2） the calculation of a matrix that expresses the joint variability of the variables; （3） extraction of the optimal number of factors; （4） the rotation of solutions for the ease of interpretation; and （5） the estimation of the scores graphically. The results showed that the variables that impact on tourism are several the most representative tourism infrastructure and complementary services restaurants, lodging with category five- and four- star travel, visitors foreign share of the Economic Active Population （EAP） in the tertiary sector, percentage of EAP women, percentage of economically active men and Gross Domestic Product （GDP） per capita among others. However the analysis of the Human Development Index （HDI） is not associated with the tourism variables

Selection of Mergers and Acquisitions by Foreign Capital in Open Economies

By a linear Cournot model, the factors associated with the integration of two firms are discussed in terms of their effects on the private surplus and the social welfare in economies with varying extent of openness. Meanwhile, the trade policy of the host government is taken into account. It is concluded that the more open the economy and the more intense the competition, the less profitable the integration; the most important determinant to the changes of the domestic social welfare is the industry strength of the host country. The host authority can enhance the domestic social welfare in two ways： to adjust the trade policy and to only approve the socially desirable cross-border mergers and acquisitions.

On the Nature of Commonweal

The purpose of economic activities boils down to improving people＇s commonweal （＂minsheng＂ in Chinese, which refers to people＇s welfare, well-being and livelihoods）. The more equal income distribution is, the higher the aggregate social utility will be. Hence, the ability to meet basic commonweal needs and rights is a symbol of a country＇s commonweal achievements and improvements. Commonweal goods are provided through businesses, nonprofit organizations and government institutions. The coexistence of these three types of organizations emphasize their respective strengths and overcome their weaknesses. No matter which organization provides any given commonweal good, there is no free lunch. It is an important question of choice as to under what conditions should public needs be replaced by government decisions （choices） and what are the consequent costs. After a country has built a basic material foundation to ensure public welfare, the satisfaction of commonweal needs will increasingly take on cultural elements. Hence, commonweal values are evolving. Supply and demand of commonweal goods and the material cost for commonweal satisfaction （happiness） are subject to substantial changes. Great commonweal achievements and improvements cannot only be ＂good deeds＂ that are of immediate benefit to the people. They should include the establishment of sound economic mechanisms supported by the people and that can deliver commonweal improvements on a sustained and extensive basis, as well as compatible social and political systems.

Look from the empty nester problem of urban and rural dual structure of society

More and more empty nest has become a social problem that couldn＇t ignore. The problem of empty nester is the essence of urban and rural dual structure social changing. The emergence of empty-nesters is a serious problem in China＇s social development process, with the aging of the population increasing, urban-rural divide more and more obvious. The condition of the human society has gradually formed the rural and the division of labor and the dual structure of the city. This paper expounds the connotation, significance and characteristics of empty nest elderly, analyzes on the problems existing in current urban and rural society and the problem of empty nest elderly in the new situation puts forward the suggestions and countermeasures.

Energy Management of Price-maker Community Energy Storage by Stochastic Dynamic Programming

In this paper,we propose an analytical stochastic dynamic programming(SDP)algorithm to address the optimal management problem of price-maker community energy storage.As a price-maker,energy storage smooths price differences,thus decreasing energy arbitrage value.However,this price-smoothing effect can result in significant external welfare changes by reduc-ing consumer costs and producer revenues,which is not negligible for the community with energy storage systems.As such,we formulate community storage management as an SDP that aims to maximize both energy arbitrage and community welfare.To incorporate market interaction into the SDP format,we propose a framework that derives partial but sufficient market information to approximate impact of storage operations on market prices.Then we present an analytical SDP algorithm that does not require state discretization.Apart from computational efficiency,another advantage of the analytical algorithm is to guide energy storage to charge/discharge by directly comparing its current marginal value with expected future marginal value.Case studies indicate community-owned energy storage that maximizes both arbitrage and welfare value gains more benefits than storage that maximizes only arbitrage.The proposed algorithm ensures optimality and largely reduces the computational complexity of the standard SDP.Index Terms-Analytical stochastic dynamic programming,energy management,energy storage,price-maker,social welfare.

The Emerging Big Data Ecosystem and Digital Transformation of Poverty Governance in China

Big data technology has become increasingly prevalent in facilitating the delivery of government services and public goods in China and beyond.This article seeks to examine how big data can be leveraged in poverty governance in rural China,and what the political implications are.This phenomenon of big data-driven welfare governance is particularly salient considering the broader context of governmental digital transformation,both within China and globally.This research sheds light on how big data usage functions in poverty alleviation,highlighting general motivations and developments in Chinese data-centric welfare governance.More importantly,this article introduces the novel concept of"digital cybernetic capacity"to examine public sector modernization as big data transforms the landscape of welfare delivery and governance.By delving into the intersection between technology and social welfare,we explicate how the use of big data in social welfare policies can go beyond merely improving information capacity to redefine state capacity.This article argues that such a new governance ecosystem,driven as it is by data technologies,not only provides insights about the transformative resilience of Chinese governance but also opens a new theoretical frontier for research into other countries.

Impacts of Two Tax Reforms on Inequality and Welfare in China

This paper takes stock of the existing literature on taxation and presents a framework to evaluate the impacts of tax policy reforms from the perspectives of progressivity and social welfare.It applies this framework to examine two tax reforms in China and finds that(i)the abolition of the regressive agricultural tax in 2005 has significantly improved the social welfare of rural residents;(ii)the increase in the income tax thresholds in 2011 increased progressivity but reduced the overall income tax share of total taxation.When the majority of the taxpayers are in the lower tax bracket,progressivity has little real impact in improving income distribution.

The Social Welfare Housing Project and Its Effects in China

It was planned to build 36 million units of social welfare housing during the twelve-five2011-2015 in China.This paper introduces the estimation of owner occupied dwelling sector and develops a dynamic computable general equilibrium model for China's real estate and macro-economy,to simulate the policy effects.The simulation results show that this policy can meet the increased requirements of housing demand due to fast urbanization and improvement of living conditions,therefore it will effectively cool down the price boom of housing market.Meanwhile,although the investment on social welfare housing will reduce the investment on other sectors,it will still stimulate GDP growth.