Returns to Scale and the Economic Impact of Migration

Abstract

This paper is concerned with the impact of international migration on a regional economy. It is based on the assumption that immigration causes the population of the region to grow, thereby increasing the cost of living for existing residents. In one version of the model, the government responds by increasing wages in the public sector so as to help offset the higher cost of living. The private sector follows suit. In another version of the model, wages are determined by supply and demand. The paper investigates what happens to living standards, unemployment and the location of the native population under different assumptions about returns to scale.     

WHAT HAS 20 YEARS OF PUBLIC–PRIVATE PAY GAP LITERATURE TOLD US? EASTERN EUROPEAN TRANSITIONING vs. DEVELOPED ECONOMIES

This paper surveys the literature on public–private sector pay differentials based on 20 years of research in transitioning countries of Eastern Europe (EE) and compares the results with estimates obtained from developed market economies. The majority of empirical studies from EE economies found evidence of public sector pay penalties during the period of economic transition from a communist to market‐based economy. In developed economies, however, the average differential is usually around zero or positive. The public sector pay inequality reducing effect relative to the private sector is greater in transitioning economies than in developed economies. Nevertheless, there is evidence that the sign of the public sector pay gap as well as the relative public sector pay distribution change with the progress of economic transition towards those usually observed in developed economies. Different pay‐setting arrangements between private and public sectors and competition for workers seem to be major arguments for the existence of systematic pay differences between the two sectors.     

Economies of scale in the Mexican automotive sector

Recent growth of the Mexican motor vehicle industry has sparked a great deal of controversy on both sides of the U.S.-Mexico border regarding the potential effects of the North American Free Trade Agreement. One of the key factors affecting the future competitiveness of the Mexican motor vehicle industry relative to U.S. producers is whether the Mexican firms can exploit economies of scale as their output expands. This article investigates that possibility as well as the direct and cross-price elasticities of demand for the inputs by estimating translog cost functions for the Mexican motor vehicle and autoparts industries. The results are consistent with the hypotheses that substantial economies of scale remain to be exploited by the Mexican motor vehicle industry, but that the autoparts industry is operating with diseconomies of scale. However, the lack of investment in new technology and X-inefficiency on the part of the autoparts firms may have been partially responsible for the latter finding.     

房地产企业多产品结构的经济效益分析

近年来，各地房地产企业发展迅速，实行多元化战略，呈现了多产品结构。本文运用Translog成本函数估算分析了多产品结构的经济效益，提出了“大公司、大企业有最大的范围经济，但其规模经济稳定不变，不能获得较大的成本效益；中等规模的公司可获得较大的规模经济和范围经济，能获得较好的成本效益”的观点。     

Multinational Enterprises and the Competitiveness of Transitional Host Economies

Abstract

The paper re-examines a hypothesis that multinational enterprise (MNE) subsidiaries in Poland make a significant contribution to host country competitiveness by raising overall export performance. Multiple indicators based on UNCTAD methodology are used by the authors to analyze Poland's export competitiveness and link this competitiveness to MNE subsidiaries export propensity and innovativeness. They find a confirmation of the positive impact of MNEs on the Polish export sector that has substantially strengthened the country's capacity to compete in world markets and speeded up the transition process to the market-led system.     

Technical efficiency of Norwegian banks: The non-parametric approach to efficiency measurement

The nonparametric frontier methodology is applied to a sample of banks, where output levels are measured either by the number of accounts and their average size, or by the total balances of the accounts. The efficiency rankings of individual banks are found to depend substantially on our choice of output metric, whereas the estimated size of potential productivity improvements in the banking sector are less affected. The results on economies of scale are also largely unchanged.The refereeing process of this paper was handled through S. Grosskopf.     

Big and beautiful? On non-parametrically measuring scale economies in non-convex technologies

Knowledge on the scale economies drives the incentives of regulators, governments and individual utilities to scale-up or scale-down the scale of operations. This paper considers the returns to scale (RTS) in non-convex frontier models. In particular, we evaluate RTS assumptions in a Free Disposal Hull model, which accounts for uncertainty and heterogeneity in the sample. Additionally, we provide a three-step framework to empirically analyze the existence and extent of RTS in real world applications. In a first step, the presence of scale (and scope) economies is verified. Secondly, RTS for individual observations are examined while in a third step we derive the optimal scale for a sector as a whole. The framework is applied to the Portuguese drinking water sector where we find the optimal scale to be situated around 7–10 million m³.     

The role of HR practices in developing employee resilience: a case study from the Pakistani telecommunications sector

Abstract

There has been increasing interest in understanding the factors that contribute to the development of employee resilience. Despite such interest, there is a dearth of research examining the contributory role played by HR practices in enhancing employee resilience. Looking at the context of Pakistan’s telecommunications sector and deploying a qualitative methodology, this paper examines the impact of HR practices on employee resilience. The findings indicate that four key areas of HR practices – job design, information sharing and flow within an organisation, employee benefits (monetary as well as non-monetary), and employee development opportunities – enable the development of employee resilience. Consequently, the effective implementation of HR practices in these areas has been the key factor for the development of employee resilience.     

Inequality and Growth in European Regions: Towards a Place-based Approach

Abstract

Does agglomeration matter for growth? This paper addresses this question by evaluating the impact that intra-regional income distribution has on regional growth in Europe. By using a spatially augmented Solow growth model, we investigate the convergence process among 188 EU regions between 1991 and 2004 and extend the traditional growth models to account for the impact of regional inequality on growth, as well as the effects of interaction among regions. Our assumption is that existing levels of inequality between sub-regional territorial units could positively contribute to regional economic growth in Europe, through the positive effects generated by the emergence of agglomeration economies. Our results show that while we cannot find any overall significant relationship in Europe between agglomeration and growth, once we distinguish between Objective 1 and Non-objective 1 regions we are able to find that agglomeration positively impacts subsequent growth, but only in the less developed regions.     

Returns to Scale and the Economic Impact of Migration: Some New Considerations

Abstract

This paper builds on an earlier paper by the author. It uses a simple model to analyse the economic impact of international migration on a large city. The paper assumes that immigration causes the population of the city to grow, thereby increasing the cost of living for existing residents. In one version of the model, the government responds by increasing public-sector wages so as to help offset the higher cost of living. The private sector follows suit. In another version, wages are determined by supply and demand. The paper investigates what happens to living standards, unemployment and the location of the native population under different assumptions about returns to scale. The mathematical analysis is supplemented by numerical simulations.

Retours à l’échelle et l'impact de la migration sur l’économie: quelques considérations nouvelles

RÉSUMÉ?La présente communication est basée sur un ouvrage précédent du même auteur. Au moyen d'un simple modèle, elle analyse l'impact économique des migrations internationales sur une grande agglomération. Cette communication présuppose que l'immigration détermine une augmentation de la population de la ville, en augmentant ainsi le coÛt de la vie pour les personnes qui y sont domiciliées. Dans une version de ce modèle, le gouvernement intervient en augmentant les salaires dans le secteur public, dans le but de compenser pour ce dernier l'augmentation du coÛt de la vie. Le secteur privé en fait de même. Dans une autre version, les salaires sont déterminés par la loi de l'offre et de la demande. La communication se penche sur ce qu'il en advient du niveau de vie, du chômage, et l'emplacement de la population autochtone dans le cadre de différents hypothèses sur des retours à l’échelle. L'analyse mathématique est complétée par des simulations numériques.

Retornos a escala y el impacto económico de la emigración: varias consideraciones nuevas

RÉSUMÉN?Este ensayo se agrega a un trabajo anterior del autor. Utiliza un modelo simple para analizar el impacto económico de la emigración internacional en una ciudad grande. El trabajo presupone que la inmigración provoca el crecimiento de la ciudad, aumentando por lo tanto el coste de la vida de los residentes existentes. En una versión del modelo, el gobierno responde incrementando los sueldos del sector público, para ayudar a contrarrestar el aumento de la carestía de la vida. El sector privado sigue su ejemplo. En otra versión, los sueldos están determinados por la oferta y la demanda. El trabajo investiga el efecto sobre el nivel de vida, el desempleo y la ubicación de la población autóctona bajo diferentes asunciones sobre los retornos a escala. El análisis matemático se complementa con simulaciones numéricas.

     

Overcoming the Negative Product Quality Image of Manufacturers in Emerging Economies

Abstract

Companies from emerging economies often suffer from perceptions of negative quality for their products. This study investigates, using an experimental design, how manufacturers in emerging countries can make use of warranty strategies to overcome their negative product quality image. Contrary to what is proposed in the warranty literature, our study shows that the use of better warranties for products designed and manufactured by firms in the emerging countries does not improve their product quality image. This is because of the “too good to be true” suspicion by consumers. Strategic alliances with firms in developed countries to produce hybrid products also may not be effective in overcoming the poor quality image for firms in emerging countries. A comprehensive warranty package such as providing full repair and replacement of parts is also effective in altering consumers' trepidation of hybrid products originating from countries of low repute. Implications for strategic alliances between firms in the developed and emerging economies are discussed.     

Economies of scale for a state system of public school districts

A review of the different variables, school district samples, regression techniques and a priori assumptions utilized in recent studies clearly indicates that no standard model or set of procedures have been developed for the problems of economies of scale within the educational sector. Based on these studies and a brief discussion of the limitations of economies of scale models as a tool in policy planning, we present a generalizable model that can easily be applied to statistics now available in state departments of education to derive valuable new information about the existing cost-size relationships and opportunity costs that exist in a state system of public school districts. A recent application of the model in Oregon that illustrates its generalizability is described. An example of how economies of scale information might be used in policy planning and proposed district consolidations is also outlined.     

Local industrial structure,agglomeration economies and the creation of innovative start-ups: evidence from the Italian case

We explore the local factors associated with the emergence of innovative start-ups fostered by a targeted industrial policy intervention in Italy. We focus on the local industrial fabric and the agglomeration mechanisms, namely localization (specialization) economies, diversification economies and the proximity to large firms. Results show that both localization economies and diversification economies are at play. Notably, a greater presence of large firms at local level seems to support the creation of innovative start-ups. Other factors, such us the presence of technical and scientific universities and the urbanization, are found to encourage their formation. The contribution of local factors to the innovative start-up creation is found to be different depending on the regional development conditions. Our analysis outlines the features of a local ecosystem favourable to the emergence of these firms, providing policy makers with suggestions for moulding industrial policies to regional specific needs and to better exploit the local opportunities.     

The effect of economic growth on banking system performance: An interregional and comparative study of Sub-Saharan Africa and developed economies

As an important part of the financial sector, banking systems play a critical role in economic development as well as in improving the quality of life of the people of sub-Saharan Africa (SSA). However, little evidence exists in the literature about the performance of the banking systems in SSA compared with developed economies. This paper investigates the effects of economic development on banking performance across 23 SSA countries and 14 developed countries between 1981 and 2018. Using estimation models such as feasible general least squares, fixed-effects estimation with Driscoll-Kraay standard errors, and system and difference generalized method of moments, our findings show that in SSA as a whole, economic development has a positive impact on commercial bank lending, raises lending rates, increases the amount of domestic credit to the private sector (DCPS), and reduces the number of nonperforming loans (NPLs). In developed countries, economic development has a positive impact on lending rates, DCPS, and the number of NPLs. However, although economic development in developed economies has mostly positive effects on banking performance, SSA countries have more performance issues in banking as a whole and in regional pockets. A careful reassessment of SSA’s interregional banking system is therefore highly recommended. An increase in the number of NPLs in East and Southern Africa, a decline in deposit rates offered in Southern, West, and Central Africa, and increasing real interest rates in SSA despite economic growth are some of the concerns that require careful reassessment and policy adjustments.     

The Producer Service Sector in Italy: Long-term Growth and its Local Determinants

Abstract

This paper analyses the local determinants of producer service growth in Italy, focusing on agglomeration economies. From a methodological viewpoint, we address the critique on the Glaeser et al. (1992)-type employment growth regressions by deriving a reduced-form equation that incorporates variables affecting both local labour supply and local demand for the industry's output. At the same time, by implementing an error-correction approach, we improve on previous dynamic specifications that do not allow for short-term fluctuations along the steady-state growth path. It turns out that long-run employment growth is positively influenced by specialization, with a smaller role played by urbanization externalities. These results are in line with the empirical findings of recent analysis based on firm-level TFP (total factor productivity) estimates, thus providing them with a valuable cross-validation, considering that TFP measurement is far from being undisputed, especially in the service sector.

Le secteur tertiaire en Italie: expansion à long terme et ses déterminants locaux

RÉSUMÉ?La présente communication analyse les déterminants locaux de la croissance des services de producteur en Italie, en se concentrant sur les économies des agglomérations. Du point de vue de la méthodologie, nous axons la critique sur les régressions de la croissance de l'emploi du type Glaeser et al. (1992), en dérivant une équation à forme réduite incorporant des variables affectant l'offre de main-d’æuvre locale et la demande locale pour la production industrielle. Parallèlement, et en réalisant une méthode de rectification des erreurs, nous optimisons des spécifications dynamiques précédentes, qui ne tiennent pas compte des fluctuations à court terme le long du chemin de croissance équilibrée à taux constant. Il en ressort que la spécialisation influe de façon positive sur l'expansion de l'emploi à long terme, un rôle plus limité revenant à des facteurs externes de l'urbanisation. Ces résultats rejoignent les conclusions empiriques d'analyses effectuées récemment, basées sur des évaluations TFP au niveau d'entreprise, en apportant ainsi une importante validation croisée, les mesures TFP étant loin d’être contestées, en particulier dans le secteur tertiaire.

El sector de los servicios de productor en Italia: el crecimiento a largo plazo y sus determinantes locales

RÉSUMÉN?Este trabajo analiza los determinantes locales del crecimiento de los servicios de productor en Italia, centrándose en las economías de aglomeración. Desde un punto de vista metodológico, tratamos la crítica sobre las regresiones del crecimiento de empleo del tipo Glaeser et al. (1992), derivando una ecuación de forma reducida que incorpora variables que afectan tanto al suministro de mano de obra local como a la demanda local en relación con la producción de la industria. Al mismo tiempo, mediante la implantación de un planteamiento de corrección de errores, mejoramos las especificaciones dinámicas anteriores, que no tienen en cuenta las fluctuaciones a corto plazo a lo largo del curso de crecimiento continuo del estado. El resultado es que el crecimiento del empleo a largo plazo es influido positivamente por la especialización, con una menor función desempeñada por las externalidades de urbanización. Estos resultados coinciden con los descubrimientos empíricos de análisis recientes basados en estimaciones de la PFT, las cuales, aunque la medición de la PFT está lejos de ser innegable, les aportan una valiosa validación sesgada, especialmente en el sector de servicios.

     

武汉城市圈中小企业如何实现规模经济

实现规模经济是武汉城市圈中小企业不断发展壮大的一条重要途经。武汉城市圈内各级政府和中小企业要根据企业的发展状况与基本特征,努力跨越实现规模经济的主要障碍,充分利用武汉城市圈作为"两型社会"试验区的发展机遇,既要实现内在的规模经济,也要实现外在的规模经济。     

Economies of diversification in the US credit union sector

Significant scale economies have been recently cited to rationalize a dramatic growth in the US retail credit union sector over the past few decades. In this paper, we explore another plausible supply‐side explanation for the growth of the industry, namely economies of diversification. We focus on the fact that credit unions differ among themselves in the range of financial services they offer to their members. Since larger credit unions tend to offer a more diversified financial service menu than credit unions of a smaller size, the incentive to grow in size may be fueled not only by present scale economies but also by economies of diversification. This paper provides the first robust estimates of such economies of diversification for the credit union sector. We estimate a flexible semiparametric smooth coefficient quantile panel data model with correlated effects that is capable of accommodating a four‐way heterogeneity among credit unions. Our results indicate the presence of non‐negligible economies of diversification in the industry. We find that as many as 27–91% (depending on the type and the cost quantile) of diversified credit unions enjoy substantial economies of diversification; the cost of most remaining credit unions is invariant to the scope of services. We also find overwhelming evidence of increasing returns to scale in the industry.     

基于生产函数和成本函数的我国航空运输业规模经济计量研究

运用了规模经济的一般含义和计量方法,并深入分析航空运输业规模经济的成因,然后借鉴规模经济常用的成本函数计量方法,通过柯布-道格拉斯生产函数构造了我国航空运输业成本函数模型,最后利用1990-2009年相关数据对我国航空运输业进行了实证研究,得出了我国航空运输业整体而言存在规模经济的结论,从而为指导我国航空运输业实践提供了依据。     

Cost-Output Relation,Technological Progress,and Clinical Activity Mix of US Hospital Pharmacies

The fairly recent discovery and growing use of costly, revolutionary biotechnology drugs (e.g., GM-CSFs) in hospitals represent a major technical innovation in clinical pharmacy intervention. This paper models the translog production cost impacts of ten distinct clinical pharmacy tasks including pharmacokinetics, consultations with MDs, monitoring drug interactions,..., and presents results on decomposed technical change, economies of scope, scale economies, total factor productivity, and the alternatively defined pairwise factor substitution possibilities. The model was fitted to 1981–1990 time-series/cross-sectional data of US hospital pharmacies (source: Eli-Lilly Co.®). Zellner's ISURE (Iterative Seemingly Unrelated Regression Equations) system estimates reveal a non-homothetic underlying technology with biased and pure technical change effects dominating scale-augmentation. Certain clinical tasks increase costs but are cost-saving if jointly produced with selective others. One of the largest and statistically significant economies of scope estimates is between monitoring drug interactions and consultations with MDs. Cost implications of findings are given in light of the recent trends in hospital pharmacy clinical activities, related professional health manpower, and piecemeal health policy reforms.     

The geography of new firm formation: Evidence from independent start-ups and new subsidiaries in the Netherlands

This paper investigates to what extent determinants of the rate of independent start-ups and the rate of new subsidiaries are different. Using a regional database for the Netherlands over the period 1988–2002, we investigate the impact of two types of agglomeration effects, localization and urbanization, while controlling for a range of economic variables. We find urbanization economies to be particularly important for the creation of new subsidiaries while localization economies are more important for the creation of independent new ventures. Finally, the effect of agglomeration variables is found to be stronger for manufacturing industries compared to services industries.