Global environment and dynamic games of environmental policy in an international duopoly

This paper examines a differential game model of international pollution control in which polluting oligopolists compete in a third country market. Two alternative policy instruments (emission taxes and command-and-control regulations) are considered. A tougher emission policy in the home country enhances the foreign firm’s competitiveness because of the static “rent-shifting” effect. The foreign country also enjoys a future improvement of the global environmental quality by “free riding” on the home country’s emission reduction effort. Because of these strategic effects, the levels of environmental policy determined in the noncooperative policy game are distorted away from the socially optimal level. Moreover, the emission tax game produces a more distortionary outcome than that in the command-and-control game; it generates more pollution and lower welfare.      

Renewable resource management with environmental prediction: the importance of structural specification

Environmental variability can substantially influence renewable resource growth, and as the ability to forecast environmental conditions improves, opportunities for adaptive management emerge. Using a stochastic stock‐recruitment model, Costello, et al. ( 2001 ) show the optimal management response to a prediction of favourable growth conditions is to reduce current harvests. We find this result may be reversed when environmental variability and stock are substitutes in growth, a possibility that has been ignored by resource economists. As an example, we analyze the South Carolina white shrimp fishery, finding the optimal response to a prediction of favourable overwinter conditions is to increase fall harvests.     

Fiscal policy asymmetries and the sustainability of US government debt revisited

This paper empirically investigates US fiscal policy sustainability and cyclicality in an empirical structure that allows fiscal policy responses to exhibit asymmetric behavior. We investigate this over two quarterly intervals, both of which begin in 1955:1. The short sample ends in 1995:2 and is most similar to the one used by Bohn (Q J Econ 113:949–963, 1998), whereas the full sample ends in 2013:3. Our estimation results show that the full sample period is sufficiently different from the short sample period, that the asymmetric (nonlinear) empirical models used in this paper are important and that the sustainability of US government debt topic needed to be revisited. Indeed, the short sample provides evidence of fiscal policy sustainability in line with Bohn’s (1998) findings. However, when considering the full sample, US fiscal policy is found sustainable during good economic times only according to the best fitting nonlinear model, but unsustainable for all specifications studied during times of distress. With regard to cyclicality, both samples show policy is asymmetric. Moreover, both samples show countercyclical policy during times of distress and the full sample results show some evidence that policy may be procyclical during good economic times.     

Green technical innovation, environmental expenditure, and the environmental Kuznets curve： a dynamic s model

The relationship between the emission of pollutant and economic growth has attracted a lot of attention in the environmental debate of the recent decades. Based on some theoretical and empirical research on environmental Kuznets curve （EKC）, this paper introduces the environmental technical innovation and environmental investment into Salow growth model to discuss the relationship between GDP per capital and the emission of pollutant By the dynamic simulation and parameters analysis, the results of the model indicate： （1） when ＂green＂ technical progress and environmental investment are fixed, the relationship between GDP per capital and the emission shows the linear relationship; （2） ＂green＂ technical progress can lead to the positive growth rates with a decreasing level of emission, which is compatible with an EKC; （3） the proportion of the environmental investment can lead the different growth rates and level of emission. These results can explain that developing countries are ＂too poor to be green＂.     

Strategic environmental policy and the accumulation of knowledge

In dealing with a transnational pollutant-emitting duopoly welfare-maximising policy makers face two negative externalities: imperfect competition and unpriced emissions. Strategic environmental policy models show that these externalities involve a trade-off between reducing pollution and allowing for rent-seeking of the respective firm. This dilemma usually results in a suboptimal internalisation of the negative externality emerging from emissions. Indeed, the conventional model setup includes an R&D stage that enables the firms to mitigate regulation costs. But the typical one period configuration ignores that R&D expenditures create knowledge capital which is, due to its inherent cumulativeness, also effective in following periods. Our model analyses the established trade-off in a two period setting and therefore allows for an investigation of intertemporal knowledge accumulation. We find that the intertemporal effects provide an incentive for a policy maker to set a higher tax rate compared to a one-period setup which lessens the magnitude of the suboptimal internalisation of emissions. Under certain conditions even a tax rate above the Pigouvian level is possible in period 1.     

Renewable resource management, user heterogeneity, and the scope for cooperation

Cooperation can increase the efficiency of commonly-owned renewable resource use. However, received knowledge is that, absent side payments, cooperative solutions are more difficult to achieve the less homogenous the agents involved. We revisit this claim by analyzing how differences in the opportunity costs of resource harvesting affect the scope for Pareto-improving contracts, where contracting is with respect to the type of technology used. We find that the scope for cooperation is largest for intermediate levels of heterogeneity.     

Scenario planning in public policy: Understanding use,impacts and the role of institutional context factors

Scenario planning has formed a growing area of interest on the interface of academia and public and private sector policy-making. While methodological approaches are well covered in the academic literature, less attention has been paid to studying the use, impacts and effectiveness of scenario planning in public policy-making. This article combines preliminary findings from a review of evaluative scenario literature with workshop discussions among scenario practitioners, using environmental relevant policies as a case study. Subject to the nascent evaluative scenario literature, our preliminary findings highlight that scenario planning still is often executed in a rather ad-hoc and isolated manner and is mostly geared towards indirect decision support such as agenda-setting and issue-framing. The slim evidence base aggravates the assessment, but the potential of scenario planning to prepare public policy-making for the uncertainties and surprises of future developments and better manage complex decisions involving conflicting societal interests is clearly not fully utilized. Political and institutional context factors need to be treated with greater care in the future. Making better decisions under conditions of deep uncertainty does not only require rigorous analysis, but also political will and more stable institutional settings and organisational capacities to build up trust and experience with adaptive, flexible process formats. We synthesize our analysis with a discussion of further research needs.     

On the design of incentive mechanisms in environmental policy

The objective of this paper is to present environmental policy as a simple game in two stages within a principal-agent framework. At the outset the authority adopts a transfer payment rule. Then the firms react by carrying out abatement activities, based on their chosen levels of emission and output. Next the authority measures the emissions (and residual profit of the industry) and revises the level of its instrument. Then the game starts again. Our purpose is to narrow the scope of ad hoc incentive schemes by characterizing families of optimal linear schemes.We thank two anonymous referees for their valuable suggestions. We have also benefited from comments from I.-M. Andréasson, J. B. Opschoor, H. Verbruggen and the other members of the Task Force II: Environmental Policy instruments of the European Science Foundation Programme: Environment, Science and Society. Wang acknowledges support from the Deutsche Forschungsgemeinschaft (DFG).     

On the dynamics of renewable resource harvesting and pollution control

The paper presents a dynamic partial equilibrium model which combines optimal renewable resource harvesting and optimal pollution control. Pollution accumulates as a slowly decaying stock and is assumed to affect the growth and the quality of the renewable resource stock. The aim is to maximize a social welfare functional which gives the present value of the difference between natural resource benefits and pollution control costs. The existence, uniqueness and the dynamic properties of the steady states are investigated. The analysis also gives a general result concerning the steady state of any two state variable optimal control problems.     

Does fiscal policy really matter in the context of variable prices?

Blinder and Solow's crowding-out analysis is extended by allowing wealth effects of debt accumulation on both aggregate demand and aggregate supply. Two questions are reexamined; (1) the compatibility relationship between the long-run stability and the sign of the instantaneous money and bond multipliers, and (2) the long-run relative expansionary effect of bond financing. Without capital accumulation, real crowding-out may become compatible with stability under both money and bond financing, while nominal crowding-out is not. Normally, this is also true with capital accumulation. Furthermore, bond financing is not necessarily more expansionary than money financing in either real or nominal terms.     

The dynamics of entrepreneurship: hysteresis, business cycles and government policy

This article estimates two unobserved components models to explore the macrodynamics of entrepreneurship in Spain and the USA. We ask whether entrepreneurship exhibits hysteresis, defined as a macrodynamic structure in which the cyclical component of entrepreneurship has persistent effects on the natural rate of entrepreneurship. We find evidence of hysteresis in Spain, but not the USA, while in Spain business cycle output variations significantly affect future rates of entrepreneurship. The article discusses implications of the findings for the design of entrepreneurship policies.     

Institutional Resource Regimes: Towards sustainability through the combination of property-rights theory and policy analysis

Although the concept of sustainable development is gaining increasing political acknowledgement, despite the implementation of environmental policies specifically intended to solve problems in this area, environmental degradation resulting from the recurrent problems associated with the over-exploitation of natural resources remains an important concern for most countries. How can this situation be explained? This article postulates that a combination of approaches from the political sciences (in particular policy analysis) and institutional economics would enable the identification of the most relevant regulatory dimensions which can explain the (un)sustainable uses of resources. Based on this starting point, it develops an innovative theoretical framework, i.e. that of the Institutional Resource Regime (IRR).The adopted approach facilitates the analysis of the regulatory measures and resource management practices associated with complex and competitive heterogeneous use situations from a perspective of sustainability. Indeed, the two dimensions of “extent” and “coherence” enable the definition and categorization of the IRR of a given resource. The extent of an IRR refers to the total number of goods and services in use that are actually regulated by the regime at a given time, while the coherence measures the degree of coordination of the various user-actors within the regime. One of the major contributions of the IRR framework is its ability to describe the different configurations of regimes, both theoretically and empirically, and to predict their effect on the sustainability of a resource based on the hypothesis that high levels of regime extent and coherence are necessary preconditions for sustainability.By doing this, the IRR framework also enables the analysis of the actual use rights to the goods and services provided by resources as the result of the political strategies of actors who mobilize different legal provisions, which stem either from formal property rights to resources or from policies that regulate the use and protection of these resources.Having developed the central research hypotheses and the empirical research procedure, we present the lessons drawn from the first campaign of field research which was mainly conducted in Switzerland from 1999. Based on the evidence from these initial findings, it is suggested that the scope of the IRR framework could be far broader than evidenced by its application in the case of Switzerland where it was initially developed.     

(S,s) inventory dynamics and self-organized criticality

This paper proposes a new model of self-organized criticality in order to explain large fluctuations of aggregate production in an (S,s) economy. It is shown that the inventory distribution in an (S,s) economy always converges to a unique steady state, and that aggregate production exhibits a peculiar instability at the steady state: the propagation effect of a demand shock on aggregate production follows a power law.The model differs from previous models of self-organized criticality in that it incorporates a global interaction in the network. The global interaction is interpreted as a representation of market transactions with which economists are familiar. The other novelty of the paper is that an intrinsic instability of (S,s) economies is found. Many small non-linearities in the (S,s) economy may not be cancelled out in aggregation. Instead, they play a key role in organizing the fluctuations of aggregate production.     

简析人力资源管理视角下医院人力规划存在问题及措施

在医院的日常运营和发展工作中,人力资源是其中一个非常重要的资源构成形式,对提高医院的整体发展质量和经济效益形成了重要的影响。但是在实际的工作过程中,部分医院在人力规划工作当中存在诸多问题,影响到了医院的正常稳定发展。基于此,本文重点针对人力资源管理视角下医院人力规划工作存在的问题展开了分析和论述,并且有效提出了相应的问题解决措施,有效保证医院的长远稳定发展。     

New human resource management practices, complementarities and the impact on innovation performance

In this paper, we take our theoretical point of departure inrecent work in organisational economics on systems of humanresource management (HRM) practices. We develop the argumentthat just as complementarities between new HRM practices influencefinancial performance positively, there are theoretical reasonsfor expecting them also to influence innovation performancepositively. We examine this overall hypothesis by estimatingan empirical model of innovation performance, using data froma Danish survey of 1,900 business firms. Using principal componentanalysis, we identify two HRM systems which are conducive toinnovation. In the first one, seven of our nine HRM variablesmatter (almost) equally for the ability to innovate. The secondsystem is dominated by firm-internal and firm-external training.Of the total of nine sectors that we consider, we find thatthe four manufacturing sectors correlate with the first system.Firms belonging to wholesale trade and to the ICT intensiveservice sectors tend to be associated with the second system.     

Sex and environmental policy in the U.S. House of Representatives

Using LCV score data, we find that female legislators favor stricter environmental policies than do their male counterparts. Moreover, gender-corrected estimates suggest that voters do not push environmental policy towards the middle, but rather select the ideologically closest candidate.     

Optimum management and environmental protection in the aquaculture industry

The sustainability of the aquaculture industry has recently been the object of social and scientific debate, due to the contamination caused by the culture to the surrounding environment. As a contribution to the debate, this paper analyses the effect of adopting a Pigovian tax to internalise the environmental costs on the optimal management of farms. To do so, we make use of dynamic stochastic models of fish growth and contamination diffusion. Farms can also implement some measures to abate pollution, which are divided into two types: those applied continuously (“managerial” measures) and those once in a culture cycle (“structural” measures). The results reveal that the tax imposition lowers the optimum size in the farm. The type of abatement strategy plays a central role in the determination of the optimum harvest size. A need for caution in internalisation policies is emphasized, as negative consequences could arise in certain cases, putting the farms' survival at risk.     

寡头竞争、银行资金管理与存款准备金政策

利率和存款准备金政策是影响商业银行资金管理的重要因素.在一个统一的金融市场中,一家银行的利率变动必然受到其它银行利率变动及证券市场利率变动的影响,并且利率也会受到存款准备金政策变动的影响.分析表明,在古诺、勾结和准竞争的市场结构中,证券市场利率和存、贷款利率以及存款准备率和存款利率都具有一致的比较静态效应.     

Finance,growth and (macro)prudential policy: European evidence

Empirica - This paper examines the interactions between financial development, economic growth and (macro)prudential policy on a sample of 12 euro area countries. Our main takeaway is that active...