Bidding asymmetries in multi-unit auctions: Implications of bid function equilibria in the British spot market for electricity

This paper introduces and tests Bid Function Equilibria (BFE) in the British spot market for electricity. BFE extend von der Fehr and Harbord's (1993) multi-unit auction model of wholesale electricity markets by allowing firms to have heterogeneous costs for different generating units. Pure-strategy equilibria in BFE predict asymmetric bidding by producers: a single firm (the “price-setter") bids strategically while other firms (“non-price-setters") bid their costs. We test for asymmetries in firms' bid functions in the British spot market between 1993 and 1995 and find strong empirical support for the theory. We conclude that BFE have important implications for the design and governance of electricity markets.     

现代各种不同的维修管理

介绍当代各种不同的维修管理方法,以及在现代生产系统中造成维修管理复杂性的因素及其特征。对维修管理的方法及其框架这两个概念加以定义。详细说明维修活动的过程是由企业活动水平来划分,并提出一个结构,保证正确支持当前的管理人员,根据应用于维修的信息技术,现代维修工程的作用,以及根据维修方面公关能力的需求,对所需要的功能进行分类。     

Human capital,age structure and growth fluctuations

This article assesses the empirical relationship between per capita income growth fluctuations and the age-structured human capital variations across four groups of geographically clustered developed and developing countries from spatial perspective. We estimate a spatial Vector Autoregressive (VAR) model of income dynamics where the distance between countries is defined on relational space based on their similarity in appropriation tendency of human capital in the production processes. These distances are computed using a newly developed human capital data set which fully characterizes the demographic structure of human capital, and thus underlines the joint relevance of demography and human capital in economic growth. Spatial effects on growth interdependence and complementarity are then explored with respect to the proposed distance metrics. Our results imply that significant cross-country growth interdependence based on human capital distances exists among defined country groups suggesting the need for a cooperative policy programme among them. We also find that the relationship between economic growth and human capital is highly nonlinear as a function of the proposed human capital distance.     

Geographies of injustice: the socio-spatial determinants of energy poverty in Poland,the Czech Republic and Hungary

Falling real incomes, rising utility prices and the historically poor thermal quality of the housing stock are some of the main factors that have driven the rise of systemic injustices surrounding energy poverty in the post-communist states of Eastern and Central Europe (ECE). We undertake a socio-spatial and temporal assessment of energy poverty in Hungary, the Czech Republic and Poland, using Household Budget Survey micro-data and the consolidated national results of the EU Survey of Income and Living Conditions. Our results indicate that increases in domestic energy prices and expenditures during the last decade have not been offset by purchasing power gains or energy efficiency improvements, resulting in sustained and growing levels of energy poverty. Capital city regions have fared better than rural areas even if traditional macroeconomic performance indicators do not easily match domestic energy deprivation metrics. We thus question policy approaches that favour income-based solutions and fail to recognise housing- and demography-related vulnerabilities.     

Low‐Carbon Gentrification: When Climate Change Encounters Residential Displacement

This article focuses on the emergence of ‘low‐carbon’ gentrification as a distinct urban phenomenon, a process that we see as the outcome of efforts to change the social and spatial composition of urban districts under the pretext of responding to climate change and energy efficiency imperatives. The article develops a conceptual framework for scrutinizing low‐carbon gentrification, predicated upon insights from literatures on ecological gentrification and displacement. It documents the existence of an ‘eco‐social paradox’ associated with new patterns of socio‐spatial segregation and energy efficiency retrofits. We interrogate the discursive and policy frameworks, socio‐spatial implications and political contestations of low‐carbon gentrification. Evidence is drawn from case study research in an inner‐city district of the Polish city of Gdańsk, where such processes have been unfolding since 2006 due to the implementation of a targeted urban regeneration programme. This investigation is positioned within a wider analysis of secondary written sources about similar developments in other geographical contexts across Europe and North America, where anecdotal evidence suggests that low‐carbon gentrification may be widespread and common.     

Do neighboring municipalities matter in industrial location decisions? Empirical evidence from Spain

This paper focuses on industrial location, assuming that entrepreneurs not only consider the advantages associated with a certain municipality, but also those coming from nearby areas. Exploratory analysis reflects the existence of spatial patterns in the creation of manufacturing establishments and sheds light on the geographical scope on which agglomeration economies operate in industrial location. Spatial Probit models and standard Probit models with spatially lagged explanatory variables are estimated to test whether neighboring municipalities’ location decisions and characteristics, including agglomeration economies, matter in industrial location choices. Results show that neighboring municipalities location decisions and characteristics help to explain location decisions of new establishments for 11 manufacturing industries in Spanish municipalities (NUTS V) over the period 1991–1995.     

How different is Africa? A comment on Masanjala and Papageorgiou

Masanjala and Papageorgiou (Rough and lonely road to prosperity: a reexamination of the sources of growth in Africa using Bayesian model averaging, Journal of Applied Econometrics 2008; 23 (5): 671–682) use Bayesian model averaging to evaluate the existence of parameter heterogeneity between African and non‐African countries in the framework of cross‐country growth regressions. We show that their results are not robust to the use of a prior over the model space that respects the strong heredity principle put forward by Chipman (Chipman HA. 1996. Bayesian variable selection with related predictors. Canadian Journal of Statistics 24 : 17–36) for models including interaction terms. Copyright © 2010 John Wiley & Sons, Ltd.