Modern Agricultural Economics and Management has a nature of the fusion cross, and agricultural economic management has economics, agronomy, management and integration and it also has the particularity of disciplines,...Modern Agricultural Economics and Management has a nature of the fusion cross, and agricultural economic management has economics, agronomy, management and integration and it also has the particularity of disciplines, from the position in terms of management and economics agricultural economy belongs to the branch pipe and branch management economics. As China＇ s reform and opening up, the whole society is in a new phase of a transition, Agricultural Economics and Management disciplines would like to be explored in more areas, but we still want to keep the cross and integration features. In this paper, a modem agricultural economy management disciplines is in order to adapt to the transition period which is characterized by a series of market analyzes and reflection.展开更多
According to the general trend of the global infonnation industry development, we should use the latest and best technology integration, starting from a high point at the same time with the actual situation; we should...According to the general trend of the global infonnation industry development, we should use the latest and best technology integration, starting from a high point at the same time with the actual situation; we should formulate a feasible development plan, implementing after repeated discussions of experts. In the study and formulation of a plan, we should be sure to consider things conducive to catch up with world advanced level, enabling urban and rural economic and social development. The construction of modern agriculture, development of the rural economy and increasing farmers＇ income is a major task of building a moderately prosperous societyin the new era. Information technology and marketing are important symbols of modern agriculture throughout the entire process and all areas of modem agriculture. Vigorously developing the information industry and promoting agricultural and rural economic information are important content of agriculture and rural work in the new era.展开更多
The DeGroot model is a classic model to study consensus of opinion in a group of individuals(agents). Consensus can be achieved under some circumstances. But when the group reach consensus with a convergent opinion va...The DeGroot model is a classic model to study consensus of opinion in a group of individuals(agents). Consensus can be achieved under some circumstances. But when the group reach consensus with a convergent opinion value which is not what we expect, how can we intervene the system and change the convergent value? In this paper a mechanism named soft control is first introduced in opinion dynamics to guide the group's opinion when the population are given and evolution rules are not allowed to change. According to the idea of soft control, one or several special agents,called shills, are added and connected to one or several normal agents in the original group. Shills act and are treated as normal agents. The authors prove that the change of convergent opinion value is decided by the initial opinion and influential value of the shill, as well as how the shill connects to normal agents. An interesting and counterintuitive phenomenon is discovered: Adding a shill with an initial opinion value which is smaller(or larger) than the original convergent opinion value dose not necessarily decrease(or increase) the convergent opinion value under some conditions. These conditions are given through mathematical analysis and they are verified by the numerical tests. The authors also find out that the convergence speed of the system varies when a shill is connected to different normal agents. Our simulations show that it is positively related to the degree of the connected normal agent in scale-free networks.展开更多
文摘Modern Agricultural Economics and Management has a nature of the fusion cross, and agricultural economic management has economics, agronomy, management and integration and it also has the particularity of disciplines, from the position in terms of management and economics agricultural economy belongs to the branch pipe and branch management economics. As China＇ s reform and opening up, the whole society is in a new phase of a transition, Agricultural Economics and Management disciplines would like to be explored in more areas, but we still want to keep the cross and integration features. In this paper, a modem agricultural economy management disciplines is in order to adapt to the transition period which is characterized by a series of market analyzes and reflection.
文摘According to the general trend of the global infonnation industry development, we should use the latest and best technology integration, starting from a high point at the same time with the actual situation; we should formulate a feasible development plan, implementing after repeated discussions of experts. In the study and formulation of a plan, we should be sure to consider things conducive to catch up with world advanced level, enabling urban and rural economic and social development. The construction of modern agriculture, development of the rural economy and increasing farmers＇ income is a major task of building a moderately prosperous societyin the new era. Information technology and marketing are important symbols of modern agriculture throughout the entire process and all areas of modem agriculture. Vigorously developing the information industry and promoting agricultural and rural economic information are important content of agriculture and rural work in the new era.
基金supported by the National Natural Science Foundation of China under Grant No.61374168
文摘The DeGroot model is a classic model to study consensus of opinion in a group of individuals(agents). Consensus can be achieved under some circumstances. But when the group reach consensus with a convergent opinion value which is not what we expect, how can we intervene the system and change the convergent value? In this paper a mechanism named soft control is first introduced in opinion dynamics to guide the group's opinion when the population are given and evolution rules are not allowed to change. According to the idea of soft control, one or several special agents,called shills, are added and connected to one or several normal agents in the original group. Shills act and are treated as normal agents. The authors prove that the change of convergent opinion value is decided by the initial opinion and influential value of the shill, as well as how the shill connects to normal agents. An interesting and counterintuitive phenomenon is discovered: Adding a shill with an initial opinion value which is smaller(or larger) than the original convergent opinion value dose not necessarily decrease(or increase) the convergent opinion value under some conditions. These conditions are given through mathematical analysis and they are verified by the numerical tests. The authors also find out that the convergence speed of the system varies when a shill is connected to different normal agents. Our simulations show that it is positively related to the degree of the connected normal agent in scale-free networks.
