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1.
We analyze the efficiency of urbanization patterns in a stylized dynamic model of urban growth with three sectors of production. Pollution, as a force that discourages agglomeration, is caused by domestic production. We show that cities are too large and too few in number in uncoordinated equilibrium if economic growth implies increasing pollution (‘brown growth’). If, however, production becomes cleaner over time (‘green growth’) the equilibrium urbanization path reaches the efficient urbanization path after finite time without need of a coordinating mechanism. We also generalize these results by taking other forms of congestion and urban land markets into account.  相似文献   

2.
We study the existence problem of Nash equilibrium as well as the patterns of equilibrium policy outcomes in an electoral competition model with mixed motivations. Each party maximizes a sum of party members’ expected utility and office rent. The inclusion of office rent renders the payoff of each party discontinuous. This makes it difficult to apply usually fixed point arguments to prove the existence of Nash equilibria. By using a recently developed concept, multiple restrictional security (MR‐security) we provide conditions under which a pure‐strategy Nash equilibrium exists within fairly general settings, and further the analysis by presenting conditions under which various patterns of policy choices, including polarization, arise in equilibrium.  相似文献   

3.
We consider the problem of an inventor who discloses knowledge under the threat of a rival who may patent a competing idea. Disclosure diminishes the probability that the rival has of receiving a patent (legal externality) but it also decreases the rival’s marginal R&D cost (knowledge externality). Our results reveal that: (i) when the knowledge externality is ‘large’ (‘small’) relative to the legal one, an increase (decrease) in the patentability standard leads to higher disclosure and promotes R&D and (ii) if subsequent research creates positive external effects, the patentability standard should be set to promote further disclosure and R&D in equilibrium. The impact on the equilibrium configuration of changes in market profits is also examined.  相似文献   

4.
This paper analyzes the implications of an institutional structure in which current residents of an urban area have the power to exercise control over the level and pattern of new residential development. We develop a general equilibrium spatial model of a ‘small’ urban area in which the current residents can control new residential development through a zoning policy determined by majority vote. The current residents are modeled explicitly as home owners, and are allowed to be arbitrarily different in tastes and endowments. The urban government is assumed to provide a public good for its residents, the level of which is also determined by majority vote.The ‘optimal’ development control policy from the point of view of a particular current resident is determined and the allocation resulting from a majority vote of the current residents is described for both head tax and property tax systems. Efficient development control policies are also analyzed.  相似文献   

5.
We derive conditions such that optimal liquidity provisions through a demand deposit scheme can be sustainably implemented in a subgame perfect Nash equilibrium under the assumption that renegade investors have free access to ex post asset markets. As our qualitative main finding we demonstrate that such sustainability is more likely for ‘poor’ than for ‘rich’ scheme participants in terms of future income. By establishing sustainability for low future income populations, our formal analysis therefore offers an important qualification of Jacklin's (1987) influential claim that an optimal demand deposit scheme is not sustainable whenever there exists the possibility of an ex post asset market.  相似文献   

6.
Ola Tunander 《Geopolitics》2013,18(3):546-566
Early in the twentieth century, Swedish geopolitical scholar Rudolf Kjellén wrote of the nineteenth century nation-state as a state of ‘land and people’, but he also suggested that in the twentieth century various empires would eventually force Central Europe to unify into a bloc of states under the protection of a powerful Germany. This concept of ‘state-bloc’ resembles Carl Schmitt’s idea of Grossraum and is also very similar to what later became NATO, but now with the United States, not Germany, as its central protecting power. Within the individual state, this duality of nation-state and state-bloc was fused with what Hans Morgenthau called a ‘dual state’ with a regular state hierarchy of the nation-state versus a parallel security hierarchy, now linked to the central power. After the Second World War, Sweden, despite its ‘policy of neutrality’, was placed under the US nuclear umbrella, creating a duality that typified Morgenthau’s idea of the ‘dual state’. The regular ‘democratic hierarchy’ was confronted by the US-leaning ‘security hierarchy’, with the latter intervening in the event of emergency. In the 1980s, the strength and unpredictability of the Swedish Social Democratic government became worrisome to the US security network. In a crisis situation, the ‘dual state’ – or what we might call a ‘double sovereignty’ of the ‘democratic state’ and the ‘security state’ – might prove unacceptable. In the final analysis, the Schmittian ‘sovereign’ is undivided.  相似文献   

7.
This article deals with the mid-1990s Standort Deutschland debate, which is considered to be a distinct semantic means for the reproduction of the nation-state. This debate serves as a starting point for further theorising what we will call spatial semantics. In addition, but also in difference to research focusing too narrowly on (re)organisational aspects of economic state crises, we propose a view that addresses the role and function of space-related terms within mass-media communication. Against the fundamental background of Luhmann's version of systems theory, certain elements from banal nationalism, critical geopolitics and the place-concept in humanistic geography are revised to grasp the capability of spatial semantics to transform uncertainty of ‘the world we live in’ into seemingly ‘natural’ certainties. This elaboration is underpinned by a short empirical illustration that catches the main contents of the above mentioned debate by scrutinising the articles on the Standort Deutschland in the weekly newspaper Die Zeit between 1995 and 1999.  相似文献   

8.
Sean Carter 《Geopolitics》2013,18(4):756-763
The paper investigates the promise of Carl Schmitt's concept of ‘nomos’ for developing new spatial imaginaries apposite to the study of ‘the border’ in contemporary political life, as per the aims of the ‘Lines in the Sand’ research agenda. Schmitt introduced the idea of a ‘nomos of the earth’ to refer to the fundamental relation between space and political order. There have been various historical expressions of the nomos, from the Respublica Christiana, to the jus publicum Europaeum, to a post–World War II (dis)order yet to be adequately theorised. We aim to explore the relatively overlooked spatial ontology of Schmitt's work and suggest ways in which it might prompt alternative ways of thinking about borders and bordering practices as representative of broader dynamics in the relation between space and political order.  相似文献   

9.
This study develops an overlapping generations model that involves the endogenous determination of demographic and city structure to fully analyze the social and natural changes in city populations. We provide conditions under which the model exhibits the spatial features of demography observed in urban areas: city centres have a lower total fertility rate than suburbs and larger cities have a lower total fertility rate than smaller cities. Through calibration, we also show that spatial factors have a significant impact on demographic characteristics and city growth.  相似文献   

10.
Abstract. This paper analyzes the functioning of monetary policy transmission mechanisms in Italy from 1984 to 1998, highlighting the role performed by the credit system. We extend the Bernanke and Blinder model (1988) to the case of an open economy under a quasi‐fixed exchange rate regime, deriving analytically the conditions for the functioning of the three monetary policy channels generally identified in the literature (‘money’, ‘exchange rate’ and ‘credit’). These conditions explain the partial effectiveness of monetary policy in achieving price and income targets, while maintaining external equilibrium. By means of a structural VECM analysis, we evaluate the effectiveness of the transmission of monetary policy through the three channels.  相似文献   

11.
Tiebout's hypothesis is examined in a model with the continuum of income classes and no economies of scale of population in public output provision. Any efficient allocation of resources can be achieved in this model by a system of jurisdictions, each containing a separate income class, and each using a local property tax to finance local public output. However, in general at most one such allocation will be an equilibrium if residents can ‘vote with their feet’. Conditions are derived under which higher-income residents will locate in jurisdictions providing a higher level of public output. These are shown necessary, given a separable utility function, for any optimal allocation to be sustainable as an equilibrium when residents are mobile.  相似文献   

12.
In this comment, we answer the question posed in Svensson’s (2000) paper ‘Does the P* Model Provide any Rationale for Monetary Targeting?’– in contrast to him ‐‐ in the affirmative. We argue that a strategy of monetary targeting can be rationalized within the P* framework. Furthermore, we demonstrate that money growth targeting is a special form of inflation forecast targeting based on a ‘limited’ information set. In contrast to ‘full information’ inflation forecast targeting, monetary growth targeting is likely to be more robust under changing conditions of the real world.  相似文献   

13.
Agents interacting on a body of water choose between technologies to catch fish. One is harmless to the resource, as it allows full recovery; the other yields high immediate catches, but low(er) future catches. Strategic interaction in one ‘objective’ resource game may induce several ‘subjective’ games in the class of social dilemmas. Which unique ‘subjective’ game is actually played depends crucially on how the agents discount their future payoffs. We examine equilibrium behavior and its consequences on sustainability of the common-pool resource system under exponential and hyperbolic discounting. A sufficient degree of patience on behalf of the agents may lead to equilibrium behavior averting exhaustion of the resource, though full restraint (both agents choosing the ecologically or environmentally sound technology) is not necessarily achieved. Furthermore, if the degree of patience between agents is sufficiently dissimilar, the more patient is exploited by the less patient one in equilibrium. We demonstrate the generalizability of our approach developed throughout the paper. We provide recommendations to reduce the enormous complexity surrounding the general cases.  相似文献   

14.
《Ecological Economics》2009,68(4):630-639
Approaching the analysis of climate policies from a spatial organization perspective is necessary for realizing both efficient and effective mitigation of greenhouse gas (GHG) emissions. In particular, it allows assessing the potential contribution of specific mechanisms of spatial organization and related spatial planning and policy to climate policy goals. So far, this spatial organization angle of climate policy has hardly received attention in the literature. The main sector significantly contributing to GHG emissions and sensitive to spatial organization and planning is urban transport. A qualitative evaluation of the available spatial organization policy options is provided, on the basis of four standard ‘E criteria’ and a decomposition of CO2 emissions.  相似文献   

15.
Latin American regional governance today represents a conglomerate of commercial, political and trans-societal welfarist integration projects. In this overlapping and sometimes conflicting scenario what Latin Americanness should mean, and how integration projects should respond to current challenges of global political economy are being redefined. The focus of the paper is twofold: to better understand current regional transformations and to discuss what new developments mean for how we theorise non-European regionalism. Looking at the Bolivarian Alliance for the Americas and the Union of South American Nations we ask: How are we to understand regional agreements that are grounded in different systems of rules, alternative ideas and motivations that contest ‘open regionalism’? We argue that Union of South American Nations (UNASUR) and Bolivarian Alliance for the Americas (ALBA) represent different pathways to regional building, creating foundations for post-hegemonic and post-trade regional governance. We thus challenge New Regionalist approaches that assume regionalism as taking place within and modelled by neoliberal economics, establishing the debate around ‘old’ vs. ‘new’ regionalism. As these categories are limited in grasping the full meaning and implications of post-hegemonic regional orders, we discuss UNASUR and ALBA as ‘arenas for action’ to understand divergent practices, outcomes and types of regionness emerging in alternative regional spaces in South America.  相似文献   

16.
The theory of (tariff and exchange-rate) protection usually assumes that imports and domestic substitutes sell at the same price and that exceptions to the ‘law of one price’ are due to imperfect substitutability. This article discusses the implications for the modus operandi of protection of the divergence between the prices of imports and of their domestic substitutes. It argues that the extent of this divergence will depend on imperfect price flexibility as well as imperfect substitutability. Whereas under ‘flex-price’ conditions, protection in the first instance merely redistributes income and changes market shares, output and employment only with a lag, protection under ‘fix-price’ conditions immediately affects market shares and (subject to inventory changes) output and employment.  相似文献   

17.
Self-regulation (SR) is a common way of enforcing quality in markets (such as banking, financial services and several professions) and in a variety of public and private organizations. We provide experimental evidence of the reputational incentives of self-regulatory organizations (SROs) to publicly disclose versus cover-up fraud in an incomplete information environment. We find that observed behaviour is generally consistent with Bayesian equilibrium when subjects are informed about the relative likelihood of fraud detection by a ‘vigilant’ versus a ‘lax’ SRO type. In particular, a fraud disclosure equilibrium is supported when subjects are informed that the ‘vigilant’ SRO is more likely to detect fraud; otherwise, a cover-up equilibrium is supported. However, when subjects are not informed about the relative likelihood of fraud detection by the SRO types (as expected in real SR situations), no equilibrium is strongly supported. Our results suggest that in practice, the reputation-based incentives for effective SR may be inherently ambiguous and weak.  相似文献   

18.
The purpose of this paper is to characterize the outcome of tax competition between autonomous fiscal authorities. It treats the case of a two-region economy, where an origin-based commodity tax is levied by each region on some private good to finance a local public good. A second private good is untaxed.We first describe ‘regional market equilibria’, whereupon consumers of each region allocate their purchases of private goods between domestic and nondomestic ones according to the structure of relative prices, taxes, and transportation costs. Next, regional optimal tax levels and public good quantities are derived, the tax of the other region being held constant. Fiscal competition arises from the ability of one region in choosing its tax to alter the tax base of the other.A ‘noncooperative fiscal equilibrium’ (NCFE) is then defined as the pair of fiscal choices such that each region's tax and public good supply are optimal for itself, given those of the other region. After examining the conditions for the existence of a NCFE, its efficiency properties are considered. Pareto efficient tax levels are computed and compared with the NCFE ones, showing the sources and nature of fiscal externalities. Finally, it is established that, in this model, fiscal choices that are Pareto improving with respect to a NCFE never reduce the taxes in both regions, and always increase the tax of a tax importing region.  相似文献   

19.
We consider a homogeneous product oligopoly, where the Cournot equilibrium is regular and unique. We show that for a duopoly, a unique Cournot equilibrium is always locally stable. For a “n” firm asymmetric cost oligopoly a unique Cournot equilibrium is locally stable under very general conditions. The sufficient conditions for local stability of a unique Cournot equilibrium are much less restrictive than what the existing literature suggests. For a symmetric cost oligopoly the unique Cournot equilibrium is almost always locally stable, except for a perverse case. Journal of Economic Literature Classification number: L13.  相似文献   

20.
Economic methodologists most often study the relations between models and reality while focusing on the issues of the model's epistemic relevance in terms of its relation to the ‘real world’ and representing the real world in a model. We complement the discussion by bringing the model's constructive mechanisms or self-implementing technologies in play. By this, we mean the elements of the economic model that are aimed at ‘implementing’ it by envisaging the ways to change the reality in order to bring it more in line with the model. We are thus concerned mainly not with the ways to change the model to ‘fit’ the reality, but rather with the model's own armature that is supposed to transform the world along theoretical lines. The case we study is Arrow–Debreu–McKenzie general equilibrium model. In particular, we show the following: gradient methods and stability could be regarded as constructive mechanisms of general equilibrium modeling in the context of market socialism debates; the obsession of general equilibrium theorists with these concepts can be partly explained by the fact that they hoped not to be faithful to reality, but rather to adjust it to fit the theoretical model; mechanism design theory initiated by the stability theorist Leonid Hurwicz could be seen as a successor of this position. We conclude by showing the relevance of this analysis for epistemic culture of much of contemporary economics and hence, claim that it is an important complement to the traditional philosophy of economic modeling.  相似文献   

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