集聚与意大利南北差距

IF 3.1 2区 经济学 Q1 ECONOMICS
Luigi Buzzacchi, Antonio De Marco, Marcello Pagnini
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引用次数: 0

摘要

本文通过研究意大利全要素生产率(TFP)与就业密度之间的联系,为集聚经济提供了新的证据。我们研究了全要素生产率与就业密度之间的关系是否以及如何有助于解释意大利北部和南部地区之间明显的生产率差距的相关部分。我们对大量制造业企业样本的全要素生产率进行了估算,然后在当地劳动力市场区域层面进行了汇总。我们利用一套创新的诊断检测方法和一种依赖于地质和历史数据的工具变量方法,解决了因存在遗漏协变量和反向因果关系而产生的内生性问题。我们对经济活动空间集中度的全要素生产率弹性的估计值约为 0.045,与其他发达国家测得的数值相当。我们还表明,全国各地的集聚经济强度没有明显的异质性,有利于北部企业的全要素生产率正差异并不是因为这些地区的竞争更加激烈。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Agglomeration and the Italian North–South divide
This article offers new evidence on agglomeration economies by examining the link between total factor productivity (TFP) and employment density in Italy. We investigate whether and how the TFP–density nexus contributes to explaining a relevant share of the marked productivity gap between the northern and the southern Italian regions. We estimate TFP for a large sample of manufacturing firms and then aggregate it at the level of local labour market areas. We tackle the endogeneity issues stemming from the presence of omitted covariates and reverse causation with an innovative set of diagnostic tests and an instrumental variable approach that relies on geological and historical data. Our estimate of the TFP elasticity to the spatial concentration of economic activities is about 0.045, a magnitude comparable to those measured for other developed countries. We also show that no significant heterogeneity emerges in the intensity of agglomeration economies across the country and that the positive TFP difference in favour of the firms located in the North is not due to the tougher competition taking place in those areas.
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来源期刊
CiteScore
5.40
自引率
6.90%
发文量
33
期刊介绍: The aims of the Journal of Economic Geography are to redefine and reinvigorate the intersection between economics and geography, and to provide a world-class journal in the field. The journal is steered by a distinguished team of Editors and an Editorial Board, drawn equally from the two disciplines. It publishes original academic research and discussion of the highest scholarly standard in the field of ''economic geography'' broadly defined. Submitted papers are refereed, and are evaluated on the basis of their creativity, quality of scholarship, and contribution to advancing understanding of the geographic nature of economic systems and global economic change.
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