scholarly journals A Dynamic Model of Cournot Competition for an Oligopolistic Market

Mathematics ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 489
Author(s):  
Zeng Lian ◽  
Jie Zheng

This paper studies firms’ dynamic interaction in a Cournot market. In each period of the game, the firm decides whether to make a stochastic positioning investment (establishing or maintaining its position in market competition). The market demand is also stochastic (high or low). By adopting symmetric Market perfect Nash equilibrium, firms choose strategies to maximize the discounted present value of cash flow. By considering the cases with one, two, and three active firms in the market, respectively, we present the stage game market outcome, show the transition probabilities, find the steady state of the system, and discuss the speed of convergence. Our work allows for two types of uncertainty in firms’ interactions, which contribute to the dynamic oligopoly literature.

2020 ◽  
Vol 31 (5) ◽  
pp. 513-524
Author(s):  
Junlong Chen ◽  
Yajie Wang ◽  
Jiali Liu

This paper sets up an industry competition model consisting of two upstream enterprises and two downstream enterprises. Then we rely on the model to explore how non-regulation and different regulatory policies (maximizing the total profits of the upstream enterprises, the social welfare of the upstream industry or the overall social welfare) affect the following factors: the excess capacity, enterprise profits, consumer surpluses, social welfare in the upstream and downstream enterprises and the overall social welfare. The following conclusions are drawn from our research. First, whether and how the government regulates the capacity choice greatly affect the equilibrium outcomes, as well as the welfare distribution among the upstream enterprises, downstream enterprises, and consumers. The specific effects are dependent on market demand and enterprise cost. Second, the government should formulate its regulatory policies on capacity choice based on the overall social welfare of the entire supply chain. If the government aims to maximize the profits of the upstream enterprises, the social welfare of the downstream industry will be negatively affected. Third, excess capacity does not necessarily suppress social welfare. Under certain conditions, the worst scenario of excess capacity may occur under the pursuit of the maximal overall social welfare. Excess capacity may arise from various causes, rather than market competition or government regulation alone. Excess capacity cannot be attributed solely to government failure. These conclusions have some significance for optimizing capacity regulation policies.


2015 ◽  
Vol 15 (4) ◽  
pp. 1507-1548 ◽  
Author(s):  
Alberto J. Naranjo

Abstract Street-level illegal drug markets generate much of the violence and intimidation that local communities face nowadays. These markets are mainly driven by territorial gangs who finance their activities through the sale of drugs. Understanding how the existence of both turf and drug market competition may have unintended consequences of law enforcement policies on violence is the main contribution of the paper. We propose a two-stage game-theoretical model where two profit maximizing gangs compete in prices and invest in guns. We find that policies such as traditional or community policing can have different and unexpected effects on the level of violence.


Author(s):  
Xianlei Dong ◽  
Yongfang Cai ◽  
Jiaming Cheng ◽  
Beibei Hu ◽  
Huijun Sun

The emergence and development of car sharing can not only satisfy people’s diverse travel demands, but also can bring a new solution to facilitate urban low-carbon and green development. With the increasing acceptance of car sharing, the market competition between car sharing and traditional taxis is becoming increasingly fierce. Therefore, we explore the advantages of car sharing to travelers compared with taxis. In this paper, we first use the GPS (Global Positioning System) trajectory data of car sharing orders to construct a comparative advantage model based on travel-cost. Then, we take Beijing as the research area to explore the travel-cost advantages of car sharing in terms of the time and space dimensions compared with taxis, through calculating the travel-cost of car sharing and using simulation to calculate that of taxis. The results of the comparison between car sharing and taxis from the perspective of travel-cost are as follows: (1) Compared with short trips, the travel-cost advantage of car sharing is relatively higher in medium and long trips; for travelers, the taxi has a higher travel-cost advantage when the travel time is either very long or very short. (2) On weekdays, it is more cost-effective to travel by shared cars for travelers before the rush hours in the evening, and the travel-cost advantage of using taxis is greater after the evening peak. (3) Compared with weekdays, it is more cost-effective to travel by shared cars on weekends wherever travelers are living in the main urban areas or in the remote suburbs. It is suggested that relevant departments should understand the travelers’ preference and analyze the influence mechanism of other various factors on the market demand for car sharing as per the focus on the market on the travel-cost advantages of car sharing, so as to promote the healthy and sustainable development of urban shared transportation.


Author(s):  
Agita Livina ◽  
Sarmite Rozentale

INTRODUCTION The article intends to identify the factors that can retain talented people and attract new talent in small and medium-sized urban areas of European scale, especially in regions with declining and ageing populations. The problem is topical in today's Europe and as well as in Japan. It is equally important to understand the skills needed and the sectors where talents are required in small and medium-sized urban areas with an ascending development trend. The theoretical background of the research is based on literature studies on the theory of talent flow, knowing the factors of the talent flow in small and medium-sized cities, and building the talent flow models based on them. The article discusses the concept of talent (Michaels et al. 2001, several dictionaries, understanding of Valmiera residents). The researchers define that talented people fascinate others, create and implement ideas and have good reasoning skills. Until now, mainly in Europe and in the USA, the attraction of talent at the level of cities and regions has been implemented through migration policy. The administrative boundaries where the migrant talents come from are not as important as the factors that encourage the decisions on the choice of the place of living and work. In Estonia a National Policy for Attracting and Retaining International Talents (2014) has been developed. The findings of the report on models for attracting talent in Europe through the public sector are relevant to small and medium-sized urban areas. In the case study, there are no respondents representing a migrant group that is not a diaspora, and this is a specific feature of a small and medium-sized urban area. MATERIALS AND METHODS The empirical part has been developed through a study in Valmiera City (Latvia, Europe) with a population of 23 thousand inhabitants, aiming at increasing this number by 5000 and further boosting growth  in the city's competitiveness in human resources. A survey of 25 experts was conducted initially to highlight the trends. In order to obtain the data, 29 interviews were conducted with the city's entrants, outgoing residents and the steady, already stable and welcoming residents of Valmiera. Also, an online survey of 81 university graduates was carried out to find out the major reasons for staying in or leaving the regional city of Valmiera. The research city of Valmiera was compared to Ventspils, Rezekne and Jelgava in Latvia, as well as to two foreign cities in Northern Europe – the nearest neighbouring city of Tartu in Estonia and Joensuu in Finland. The cities were compared by socio-economic factors - population dynamics, economic development, access to culture, and political stability, which are important factors in attracting talent. The research methodology is based on the theoretical findings of Ingram, Shapiro, Albouy on the impact of four dimensions in talent attraction: economic development, market competition, labour market conditions and national culture, as well as the impact of lifestyle on choice. According to these dimensions, interview questions have been developed, and, by grouping the content, the analysis of the responses has been carried out. The previous study by the authors has been used as a secondary source. The study focused on the future skills needed for the labour force in the Vidzeme region in Latvia, and the compliance of the proposed education with the labour market requirements in the Vidzeme region of Latvia. RESULTS The results of the research show that a job offer providing the applicant the  possibility to demonstrate his capacity and pursue his or her objectives is of primary importance for the recruitment of skilled labour in a winning city in a rural area, followed by the appropriate housing and transport, and social infrastructure. As a secondary factor, lifestyle, which includes diversity, cultural environment, architecture and the presence of the natural environment, is important. The importance of the factors of attraction varies according to the stage of human life. DISCUSSION The results of the interviews show that small and medium-sized urban areas have the potential to attract talented human resources, taking into account the key attraction factors described in the theory. The empirical analysis in the example of Valmiera reveals that a significant attraction factor in small and medium urban areas is social ties with the area. The labour market demand is also an important factor. The results of the research revealed that in certain occupational groups in Valmiera (such as managers, social sciences in general), the labour market demand is lower than the supply. In further research it would be necessary to carry out focus group interviews with migrants in small and medium-sized urban areas in order to find out the important factors in taking a decision on their choice of residence. CONCLUSION Small and medium-sized urban areas need to develop diversity and openness. This initiative needs to be strengthened both in the operation and investments of a municipality and in communication with the public. Virtually all of the examples discussed refer to migration as inevitable in attracting talent – highly skilled people.


2020 ◽  
Vol 13 ◽  
pp. 296-303
Author(s):  
Yin Li ◽  

The problem of constructing the Dynamic Nash Bargaining Solution in a 2-stage game is studied. In each stage, a minimum cost spanning tree game is played, all players select strategy profiles to construct graphs in the stage game. At the second stage, players may change the graph using strategy profiles with transition probabilities, which decided by players in the first stage. The players' cooperative behavior is considered. As solution the Dynamic Nash Bargaining Solution is proposed. A theorem is proved to allow the Dynamic Nash Bargaining Solution to be time-consistent.


Author(s):  
Iftitah Hevi Riyanti ◽  
Jabal Tarik Ibrahim ◽  
Istis Baroh

Organic rise is a rice which produce organically from paddy without using fertilizer and chemical perticides. The market demand on organic rice has increased drastically and effected on promising market prospect. Lombok Kulon village is one of the area di Bondowoso district has been applied organic farming on organic rice. Tani mandiri 1 is one of farmer group who are cultivating organic rice with the certificate. The subject of research was taken at Lombok Kulon village, Wonosari regency, Bondowoso district. The method of research was descriptive qualitative with purposive sampling. The objectives of the research are: (1) to analyze the financial structure; (2) To know the criteria of financial feasibility. The quantitave analysis is purposed to analyze the aspects of financial which are cash flow, NPV (Net Present Value), IRR  (Internal Rate of Return), Net B/C Ratio, Payback Period and sensitivity analysis financial. The research showed that Unit Processing Padi Organik Tani Mandiri I was a viable unit based on the result of financial analysis. It was proved by NPV score which was Rp. 1.456.180.006 with 6 % of discount rate, the score of Net B/C Ratio was 1,65 or more than (>) 1, and IRR score was 23,80% or more than (>) 6% of bank interest rate.Organic rise is a rice which produce organically from paddy without using fertilizer and chemical perticides. The market demand on organic rice has increased drastically and effected on promising market prospect. Lombok Kulon village is one of the area di Bondowoso district has been applied organic farming on organic rice. Tani mandiri 1 is one of farmer group who are cultivating organic rice with the certificate. The subject of research was taken at Lombok Kulon village, Wonosari regency, Bondowoso district. The method of research was descriptive qualitative with purposive sampling. The objectives of the research are: (1) to analyze the financial structure; (2) To know the criteria of financial feasibility. The quantitave analysis is purposed to analyze the aspects of financial which are cash flow, NPV (Net Present Value), IRR  (Internal Rate of Return), Net B/C Ratio, Payback Period and sensitivity analysis financial. The research showed that Unit Processing Padi Organik Tani Mandiri I was a viable unit based on the result of financial analysis. It was proved by NPV score which was Rp. 1.456.180.006 with 6 % of discount rate, the score of Net B/C Ratio was 1,65 or more than (>) 1, and IRR score was 23,80% or more than (>) 6% of bank interest rate.


Author(s):  
Yingxia Yang ◽  
Randolph Kirchain ◽  
Richard Roth ◽  
Jorge Arinez ◽  
Stephan Biller ◽  
...  

Flexible assembly systems have emerged as a key manufacturing strategy in many industries, such as automotive, electronic components and computers, to respond to stronger market competition and greater product proliferation. As more companies install flexible assembly systems, design and planning decisions for such flexible systems have to be considered together with other factors besides market demand and competitive forces. This paper presents a cost analysis tool that estimates the cost of flexible assembly lines. Specifically, it provides the capability to study the production of a given set of products while evaluating the impact of different flexibility strategies on total assembly cost. A mathematical description of the model is given, followed by a case study demonstrating its application to strategic decisions during the early planning stages of assembly system design.


2011 ◽  
Vol 101-102 ◽  
pp. 81-84
Author(s):  
Yuan Liu

With the rapid development of science and technology and the increasingly fierce market competition, product design and development has been paid much attention. At the same time, because of people's aesthetic awareness and the continuous improvement of quality life, people show too much favor in technique, human oriented design and artistry, which can also become the essential means for companies to compete in the market. Starting from the market demand perspective, taking the human oriented design and interesting design into consideration, and combining native culture and new material, this article provides a new idea of future product design and development.


2007 ◽  
Vol 6 (3) ◽  
pp. 287-312 ◽  
Author(s):  
CRAIG THORBURN ◽  
ROBERTO ROCHA ◽  
MARCO MORALES

AbstractEmpirical analyses of annuities markets have been limited to a few developed countries and restricted by data limitations. Chile provides excellent conditions for research on annuities due to the depth of its market and the availability of data. The paper utilizes an extensive dataset on individual annuities to examine econometrically a measure of market performance – money's worth ratios (MWRs), or the ratio of the expected present value of annuity payments to the premium. The results show that annuitants in Chile have generally got a good deal for their premiums, as indicated by MWRs higher than one and also higher than those estimated for other countries. The difference between Chile and other countries is striking considering that annuities in Chile are indexed to prices. The wide range of indexed instruments in Chile, allowing providers to hedge their risks while extracting higher returns, helps explain the difference. The high degree of market competition has also contributed to this outcome. Efforts to improve market transparency through a new electronic quotation system have decreased the dispersion of MWRs. Finally, MWRs tend to decrease for contracts with longer durations, reflecting pricing for higher longevity and reinvestment risks. These results are consistent with separate research on the annuity rate, and indicate the need to ensure competition and market transparency, as well as to develop appropriate financial instruments for providers in order to ensure good outcomes for annuitants.


2020 ◽  
Vol 22 (02) ◽  
pp. 2040004
Author(s):  
Stefanos Leonardos ◽  
Costis Melolidakis

We study the effects of endogenous cost formation in the classic Cournot oligopoly through an extended two-stage game. The competing Cournot firms produce low-cost but limited quantities of a single homogeneous product. For additional procurements, they may refer to a revenue-maximizing supplier who sets a wholesale price prior to their orders. We express this chain as a two-stage game and study its equilibrium under two different information levels: complete and incomplete information on the side of the supplier about the actual market demand. In the deterministic case, we derive the unique subgame-perfect Nash equilibrium for different values of the retailers’ capacity levels, supplier’s cost and market demand. To study the incomplete information case, we model demand uncertainty via a continuous probability distribution. Under mild assumptions, we characterize the supplier’s optimal pricing policy as a fixed point of a proper translation of his expectation about the orders that he will receive from the retailers. If this expectation is decreasing in his price, then such an optimal policy always exists and is unique. Based on this characterization, we are able to proceed with comparative statics and sensitivity analysis, both analytically and numerically. Incomplete information gives rise to market inefficiencies because the supplier may ask for a too high price. Increasing supplier’s cost results in increasing wholesale prices, decreasing orders from the retailers and hence decreasing consumer surplus. Increasing retailers’ production capacities results in decreasing wholesale prices and increasing consumer surplus. Finally, as the number of second-stage retailers increases, the supplier’s profit may initially rise but eventually drops.


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