Fiscal and monetary policy co-ordination: A differential game approach

In this paper the interaction between the Treasury and the central bank is examined in the case of both cooperative and non-cooperative behaviour. Differential games are used in the framework of a continuous-time econometric model of the Italian economy. The Nash and the Stackelberg non-cooperative equilibrium solutions are computed, and the case for cooperation is analysed by considering the Nash and the Kalai-Smorodinsky bargaining models. It is shown that, in the Italian case, the government has a stronger bargaining position than the central bank. A comparison is then made between the different solutions to show that the drawbacks that emerge from non-cooperation are not simply those depending on the players' payoffs. Other features are in fact considered which constitute a further argument for policy co-ordination.     

A differential game in a duopoly with instantaneous incentives

In this paper, we study a differential game in which two competing firms exploit a public renewable resource that is relevant from a landscape point of view. We consider a policy maker that provides an instantaneous incentive to the firms in order to prevent the resource exhaustion during the whole extraction period, which coincides with the harvesting license period. We compute an open-loop Nash equilibrium of the differential game, showing that it coincides with a linear feedback Nash equilibrium. Finally, we compute the value of the incentive that leads to the maximization of social welfare considering the incentive both as a pure transfer and as a cost.     

Dynamic voluntary provision of public goods with uncertainty: a stochastic differential game model

Fershtman and Nitzan (Eur. Econ. Rev. 35:1057–1067, 1991) presented a continuous dynamic public good game and solved the model for feedback Nash equilibria. Wirl (Eur. J. Polit. Econ. 12:555–560, 1996) extended the model and considered nonlinear strategies. Both models do not include uncertainty and hence neglect an important factor in the theory of public goods. We extend the framework of Nitzan and Fershtman and include a diffusion term. We consider two cases. In the first case, the volatility of the diffusion term is dependent on the current level of the public good. This set-up will in principle lead to the same type of feedback strategies computed under certainty. In the second case, the volatility is dependent on the current rate of public good provision by the agents. The results are qualitatively different. We provide a detailed discussion as well as numerical examples. In particular, we show that in both cases uncertainty signifies the free rider effect.     

Existence of equilibrium in a differential game of spatial competition with advertising

We investigate a differential duopoly game with horizontal product differentiation and advertising efforts aimed at increasing market demand, to show that the standard approach to spatial competition fails to produce a pure-strategy price equilibrium in a dynamic game framework. This holds independently of the shape of the transportation cost function. Then, we introduce an endogenous cost associated with the choice of location and characterise the feedback equilibrium, identifying the necessary and sufficient condition for the existence of the pure-strategy (stationary) price equilibrium. The same condition is singled out for the static game where consumer population is constant. Finally, we show that the static game cannot be viewed as a special case of the dynamic one.     

Property appraisal in high-rises: A cooperative game theory approach

The construction of the higher stories in a building is utterly contingent upon the construction of the lower ones, while the construction of lower stories does not require the construction of the higher ones. This rationale underlies our adoption of a cooperative game theory methodology for examining the value of units based on the cost approach of land appraisal. Particularly, we propose the Shapley value solution to examine the allocation of the land and construction cost among the stories of the building. We explore the allocation mechanism and derive several closed-form properties by which the value pattern of stories in a building is rationalized. The proposed cost allocation may, among other things, generate values when comparable market prices are unobservable (consistent with the cost approach); may be used by courts in order to compute compensations in cases of disputes regarding expansions and redevelopments of existing structures among co-owners; and may determine the rent cost allocation in an organization with several profit centers located on different floors of a building.     

博弈分析视角下内部控制与公司治理的结合

本文从博弈的角度进行研究,得出结论：公司治理结构对内部控制的影响体现在权力的博弈中,只有各种权力在博弈中达到均衡,内部控制才会逐渐完善。     

The local stability of an open-loop Nash equilibrium in a finite horizon differential game

We propose a finite time differential game as a model for some economic processes and derive conditions for the Nash equilibrium solution to be locally asymptotically stable. We adopt the traditional ‘Cournot-reaction function’ notion of stability, which in our (continuous time) model becomes a function-to-function, or trajectory-to-trajectory, mapping. The conditions for stability seem to make economic sense. The equilibrium is less stable if the interaction terms in each period are large, if the game has a long duration, and if the discount rate is small.     

Advertising as Information: Matching Products to Buyers

We consider communication of quality via cheap talk and dissipative advertising expenditures, when consumers have heterogeneous tastes for quality, and price information must be acquired through costly search. For search pods, cheap talk communicates quality when fixed costs are roughly constant across quality levels, while if fixed costs vary greatly with quality, then firms having the higher fixed-cost quality level use dissipative advertising. For experience goods, quality can be communicated by cheap talk in a range where low-quality firms have greater fixed costs, and low-quality firms use dissipative advertising if their fixed costs are greater still.     

打假中的经济学和博弈论解释

本文是从经济学和博弈论的基础理论分析得出其的获取暴利和蔓延的必然性,并在分析后指出严厉打假、提高制假售假的成本是遏制制售假冒伪劣的根本之策.     

On the dominance of capitalists leadership in a ‘Feedback-Stackelberg’ solution of a differential game model of capitalism

This paper deals with a modified version of the Lancaster model of capitalism, where it is assumed that there is a cost jointly borne by the two groups of players (workers versus capitalists) and associated with the bargaining of a larger share of consumption for the workers. It is shown that a Feedback- Stackelberg solution, with the capitalists acting as leaders and announcing their investment policy at the beginning of each period, is a solution dominating the Feedback-Nash solution. The paper is also intended to be a tutorial on the Feedback-Stackelberg solution, a concept not so often used by economic modelers.     

A new approach to assess the normalization of differential rates of protest participation

Quality & Quantity - Research that compares those who do and do not participate in protest over time purports that protesters are becoming increasingly similar to the non-protesting population....     

The theta model: a decomposition approach to forecasting

This paper presents a new univariate forecasting method. The method is based on the concept of modifying the local curvature of the time-series through a coefficient ‘Theta’ (the Greek letter θ), that is applied directly to the second differences of the data. The resulting series that are created maintain the mean and the slope of the original data but not their curvatures. These new time series are named Theta-lines. Their primary qualitative characteristic is the improvement of the approximation of the long-term behavior of the data or the augmentation of the short-term features, depending on the value of the Theta coefficient. The proposed method decomposes the original time series into two or more different Theta-lines. These are extrapolated separately and the subsequent forecasts are combined. The simple combination of two Theta-lines, the Theta=0 (straight line) and Theta=2 (double local curves) was adopted in order to produce forecasts for the 3003 series of the M3 competition. The method performed well, particularly for monthly series and for microeconomic data.     

Modern day fund raising: a whole new ball game

Modern technology and fierce competition for the philanthropic dollar have revolutionized fund raising. Some special approaches are now required. One approach this author recommends is the development of a symbolic theme appeal.     

Toward a more practical approach to evaluating programs: The Multi‐Objective Realization approach

Emerging trends indicate that programs are being used to deliver benefits that may not be fully harnessed from single sets of uncoordinated projects. To support this movement, it is essential to have suitable measurement frameworks to assess the contribution of these activities and supply decision makers with valuable data on whether their objectives are being realized. This paper introduces the Multi‐Objective Realization Method (MORE) to help measure the strategic contributions of programs. The main principles of MORE underline the importance of a formal strategy to elicit and develop program objectives and to frame those objectives within defined measurement dimensions.     

Research into product costing practice: a European perspective

The period 2007–2010 marked one of the most severe economic and financial crises in living memory. In this paper, we focus on two of accounting's key functions within organisations and markets, financial reporting and governance. In this respect, we find that accounting exhibited shortcomings in its structural foundation and in its application. Salient is its failure to account for uncertainty and to adequately capture, measure and disclose the impact of risk-taking on the financial statements, thus undermining their reliability and, potentially, their relevance as indicators of economic performance. Consequently, boards were provided with misleading numbers, and compensation was based on paper profits that did not materialise. As such, accounting carried undesirable elements that interacted with other malicious market characteristics such as excessive risk-taking by bankers, and failure in regulatory and market oversight, thus potentially contributing to deteriorating economic conditions. The paper concludes with suggestions for further research in this area.

Guns don't kill people, but they sure help. (Exchange between Clive Owen and Paul Giamatti, Shoot 'Em Up, 2007)     

疫苗市场，内外企业狭路相逢

非典、流感、禽流感……频发的传染性疾病使得国内市场对疫苗的需求量剧增。有业内人士预计,2006年中国有价疫苗市场将迅速放大,市场规模有望达到30亿元。在这块大蛋糕前,诸多国际巨头正垂涎欲滴,国内企业无疑也不会放过这一市场,于是——■强强联合——外资疫苗企业在华市场牢固2005年11月初,全球第四大制药企业瑞士诺华制药公司宣布与美国凯龙公司达成最后的并购协议,以51亿美元收购其尚未持有的58%股份,新增加的生物制药业务将并入诺华现有的制药业务部门。业内人士分析,诺华的此次收购显然意在打入中国市场空缺。事实上,最近以来,国际制…