Spatial interdependence in cost efficiency and local government optimal size: The case of Italian municipalities

This study provides an original approach to empirically determine the optimal size of municipalities for efficient social service delivery in Italy, accounting for spatial spillover effects across municipalities as well as endogeneity between the output provided and its cost. A highly disaggregated and up-to-date database of Italian municipalities is used to estimate, through endogenous spatial frontier of Kutlu et al. (2020), the minimum costs. In municipalities with population ranging from 2000 to 3500 economies of scale in social service provision emerge, exhibiting cost-optimality. This outcome is completely ignored in some Regional government where financing criteria are based on historical, non-public, and ex-post repayment criteria.     

Implementation of social optimum in oligopoly

This paper presents a decentralized mechanism implementing socially optimal output choices by non-cooperatively acting oligopolists. A decentralized mechanism is a vector of balanced transfers among firms determined as a function of firms’ output choices. The mechanism is devised by a regulator with a full knowledge of demand and without any knowledge of the firms’ cost functions. Restricting the set of admissible demand and cost functions such that the firms always have an incentive to produce, it turns out that the socially optimal solution is implementable insofar as the demand function is a polynomial of at most (n−1)th degree, n being the number of firms in the industry. The author is indebted to a referee and an associate editor for their helpful comments.     

Efficiency loss in a Cournot oligopoly with convex market demand

We consider a Cournot oligopoly model where multiple suppliers (oligopolists) compete by choosing quantities. We compare the social welfare achieved at a Cournot equilibrium to the maximum possible, for the case where the inverse market demand function is convex. We establish a lower bound on the efficiency of Cournot equilibria in terms of a scalar parameter derived from the inverse demand function, namely, the ratio of the slope of the inverse demand function at the Cournot equilibrium to the average slope of the inverse demand function between the Cournot equilibrium and a social optimum. Also, for the case of a single, monopolistic, profit maximizing supplier, or of multiple suppliers who collude to maximize their total profit, we establish a similar but tighter lower bound on the efficiency of the resulting output. Our results provide nontrivial quantitative bounds on the loss of social welfare for several convex inverse demand functions that appear in the economics literature.     

Oligopsony/oligopoly power and factor market performance

This paper is concerned with the economic performance of factor markets in an oligopsony/ oligopoly setting. Firm arid industry indexes are developed to measure factor market price distortions caused by exerted oligopsony/oligopoly power. These measures indicate that the elasticity of output demand, the elasticity of input supply, and the input and output conjectural elasticities determine the degree of non-competitive performance in factor markets. It is also shown that under special conditions the firm index equals the Lerner index and the industry index equals the Herfindahl-Hirschman index.     

Indirect taxation with shadow cost of public funds in mixed oligopoly

We adopt a mixed oligopoly model, where a state-owned welfare-maximizing public firm competes with a profit-maximizing private firm, to compare the welfare effects of the specific and ad valorem tax in the presence of the shadow cost of public funds. Following the assumption of most previous literature that total output is constant under specific and ad valorem taxation, we find that, when the shadow cost of public funds exists, the tax policy must be adjusted according to the privatization level of the public firm; if the privatization level is low (medium, high), the government needs to adopt ad valorem (specific, ad valorem) tax. Moreover, the private firm will earn a higher (lower) profit under ad valorem tax than under specific tax, if the public firm is not fully privatized and the shadow cost of public funds is high (low).     

Ubiquitous inequality: The home market effect in a multicountry space

We show that spatial inequalities in an economic space of multiple countries in terms of both nominal income and real income are ubiquitous in the sense that they appear when countries are differentiated by population only. A new trade theory model is constructed without any freely traded homogeneous good, so that we can examine the home market effect (HME) and the non-monotonic relation between income inequalities and globalization. Meanwhile, there are three HME definitions for a two-country space in terms of firm share, labor wage, and trade pattern. The first two remain applicable in a multicountry space, and they are shown to be equivalent. However, a natural extension of the third is not equivalent.     

城市空间的社会与"城市文化资本"论--城市公共空间市民属性研究

城市社会空间作为城市的要素,具有典型的社会关系与社会资本属性,在不同的社会和不同的文化环境中,城市社会空间表现为不同的意义和符号价值.在当代中国城市化高速发展的今天,城市社会空间结构在发生巨变,传统的城市社会空间的意义和理念,被现代意义上的空间意涵所取代,同时,城市化的高速增长,使属于大众的城市社会空间变得越来越狭小,城市社会竞争的本质就是在竞争城市社会空间的占有形式.因此,重新认识城市社会空间的社会属性和文化价值,已经成为城市公共管理的重要内容.本文从城市社会空间属性的角度入手,研究城市社会空间的价值,以求对构建属于市民社会的新型城市社会空间有所裨益.     

Governance practices and agency cost in emerging market: Evidence from India

In this study, we examine whether governance practices brings down agency cost. We find that board size, board attendance, and CEO duality are important governance characteristics that influence the agency cost. We also bring out systematic differences in governance practices of the business group affiliated firms and stand‐alone firms. Larger board and proportion of independent director helps in reducing the agency cost for group affiliated firms supporting monitoring hypothesis. On the other hand, the governance structure of stand‐alone firms supports commitment hypothesis where we observe that board busyness and CEO duality help in reducing the agency cost.     

城市空间、社会分层与社会和谐

我国90年代以来的城市化浪潮,不仅是一个规模扩展的过程,也是一个利益重构与社会分化的过程,并带来城市居住空间上的"阶层化".这种社会阶层在生活空间上的疏离与隔膜对社会和谐造成负面影响,解决的途径可选择:适度的多样化混居;改造和提升弱区位的公共服务;充分考虑到外来工的生活居住问题等.     

Spatial patterns of urban growth: Optimum and market

The optimum spatial pattern of urban growth for a problem which is essentially a dynamic version of von Thünen model of land use is first studied by using a notion of bid land price curves, which is a dynamic extension of bid rent curves by Alonso [1]. Then a competitive market of which equilibrium growth path coincides with this optimum one is obtained by examining demand side properties. It is hoped in this way to throw some light for the future development of dynamic theory of urban land use.     

-learning agents in a Cournot oligopoly model

Q-learning is a reinforcement learning model from the field of artificial intelligence. We study the use of Q-learning for modeling the learning behavior of firms in repeated Cournot oligopoly games. Based on computer simulations, we show that Q-learning firms generally learn to collude with each other, although full collusion usually does not emerge. We also present some analytical results. These results provide insight into the underlying mechanism that causes collusive behavior to emerge. Q-learning is one of the few learning models available that can explain the emergence of collusive behavior in settings in which there is no punishment mechanism and no possibility for explicit communication between firms.     

The welfare cost of taxation in a labour market with unemployment and non-participation

The standard public economics analysis of the welfare cost of labour income taxation is based on the estimation of labour supply functions that treat unemployed individuals as non-participants. This paper applies econometric models of multinomial discrete choice to the labour market, explicitly allowing individuals to be in any of three possible states (employment, unemployment and non-participation). Based on these estimates, we present calculations of the dead-weight loss (DWL) of taxes, which turn out to be larger than those suggested by the literature.     

Spatial changes in labour market inequality

We study spatial changes in labour market inequality for US states and MSAs using Census and American Community Survey data between 1980 and 2010. We report evidence of significant spatial variations in education employment shares and in the college wage premium for US states and MSAs, and show that the pattern of shifts through time has resulted in increased spatial inequality. Because relative supply of college versus high school educated workers has risen faster at the spatial level in places with higher initial supply levels, we also report a strong persistence and increased inequality of spatial relative demand. Bigger relative demand increases are observed in more technologically advanced states that have experienced faster increases in R&D and computer usage, and in states where union decline has been fastest. Finally, we show the increased concentration of more educated workers into particular spatial locations and rising spatial wage inequality are important features of labour market polarization, as they have resulted in faster employment growth in high skill occupations, but also in a higher demand for low wage workers in low skill occupations. Overall, our spatial analysis complements research findings from labour economics on wage inequality trends and from urban economics on agglomeration effects connected to education and technology.     

The role of spatial interdependence in local government cost efficiency: An application to waste Italian sector

The paper aims to study the effect of spatial interdependence, among nearby municipalities, on public services efficiency. An empirical analysis on the waste disposal service in 4250 Italian municipalities was carried out to evaluate the efficiency of waste management expenditure, once the impact of positive/negative externalities, of neighbouring local governments, on efficiency levels is isolated. From a methodological point of view, our study extends the spatial stochastic frontier methodology proposed in Fusco & Vidoli (2013) usable only for production analysis, allowing to admit into a cost frontier the spatial autocorrelation among residuals. Ignoring spatial autocorrelation leads to inferential problems violating one of the most important assumption of classical regression models: the non-correlation of the residuals. We found a significant spatial interdependence among neighbouring municipalities in term of cost efficiency, that, thanks to the methodology proposed, has been isolated allowing a discussion on the specific efficiency of municipalities. These results may suggest the need to consider proximity effects in future investigations about the efficiency of waste management and, more generally, of public services.     

Testing a discrete switching disequilibrium model of the UK labour market

This paper develops a test procedure for serial correlation for discrete switching disequilibrium models which include both an endogenous price adjustment equation and lagged dependent variables. The tests are applied to a model of the UK labour market and the model is respecified in the light of the test results.     

Human resource policy in social work management: a response to enforced market orientation

This article is a contribution to the study of public service organizations converting to a market orientation. The case examined here is that of a social services department which opted for the strategy of restructuring on the lines of budget autonomy but accompanied it by an unusual focus upon managerial skills. The effect was to personalize the change. The conflict between old ways and new thinking was congealed into personal debate by the focus on skills so that changes had to be resolved internally. The rationale for this strategy is located in the antipathy between professional social work values and the practice of management.     

Nash-equilibria in a heterogeneous oligopoly with fuzzy information

We consider a model of an oligopolistic market with heterogeneous firms and products where neither the cost nor the demand functions are common knowledge. Instead, each firm only has some vague ideas about the price strategies adopted by its competitors which is modelled by a fuzzy set. In analogy to the notion of an "equilibrium of actions and beliefs" we define and characterize a generalized Nash-equilibrium and show its existence under general conditions. Furthermore, the impact of the fuzzy information on the equilibrium outcome is analyzed by means of a comparative static analysis within a particular model framework.Received: 28 May 2002, Accepted: 25 December 2002, JEL Classification: D43, D80, L13We wish to thank Bernhard F. Arnold, the editor Murat Sertel , and two anonymous referees for helpful comments. Of course, we are responsible for all remaining errors.     

Spatial differences in the cost of living

A method is described for constructing spatial indices of the cost of a basket of basic “requirements” of food and nonfood categories. The proposed index for nonfood items is built up from household expenditure, since their prices are unavailable in most developing countries. Using Peru as a case study, it is shown that the cost differences have significant implications for measures of real income and poverty across regions and between urban and rural areas.