Estimation of Total Factor Productivity for Regions and Sectors in Italy. A Panel Cointegration Approach

University of Cagliari, Italy Contributi di Ricerca CRENoS 00/16

28 Pages Posted: 29 Jan 2001

See all articles by Emanuela Marrocu

Emanuela Marrocu

Universita di Cagliari - Centre for North South Economic Research (CRENOS)

Raffaele Paci

University of Cagliari - Centre for North South Economic Research (CRENOS)

Roberto Pala

Universita di Cagliari - Centre for North South Economic Research (CRENOS)

Date Written: December 2000

Abstract

In this paper a complete set of estimates of long-run production functions for 20 regions and 17 sectors in Italy is provided over the period 1970-1994. Our approach features two important aspects. First, this paper represents the first attempt to provide such a comprehensive set of estimates for the Italian economy. Moreover, we allow the estimated production functions for heterogeneity across sectors and regions. This is particularly appropriate when analysing the Italian economy since the Italian regions have been experiencing fairly different and, in certain cases, divergent development paths. Secondly, on the basis of specific panel tests, we show that there is a considerable empirical evidence which suggests the presence of unit roots in our series; therefore, we apply panel cointegration tests to guard against the spurious regression problem and to detect long-run relationships. Evidence of long run relationships is found for most of the regions and the sectors on the basis of the cointegration tests; thus, the problem of spurious regressions is ruled out allowing us to offer rigorous inference on the estimation of regional production functions. The technological levels of the northern regions result much higher than the southern ones, confirming the persistency of the North - South dualism in the Italian economy. Moreover, we find that factor elasticities highly differ across regions and sectors. This is an important result since most previous studies by employing unique national elasticities introduce a serious bias in the productivity comparisons.

Keywords: total factor productivity, regional gap, panel unit root test, panel cointegration test, Italy

JEL Classification: C23, D24, O47

Suggested Citation

Marrocu, Emanuela and Paci, Raffaele and Pala, Roberto, Estimation of Total Factor Productivity for Regions and Sectors in Italy. A Panel Cointegration Approach (December 2000). University of Cagliari, Italy Contributi di Ricerca CRENoS 00/16. Available at SSRN: https://ssrn.com/abstract=254390 or http://dx.doi.org/10.2139/ssrn.254390

Emanuela Marrocu

Universita di Cagliari - Centre for North South Economic Research (CRENOS) ( email )

V. S. Ignazio 78
Cagliari, 09124
ITALY
+39.0706753764 (Phone)
+30.0706753760 (Fax)

Raffaele Paci (Contact Author)

University of Cagliari - Centre for North South Economic Research (CRENOS) ( email )

Viale S. Ignazio, 78
Cagliari I-09123
Italy
+70-6753764 (Phone)
+70-6753760 (Fax)

Roberto Pala

Universita di Cagliari - Centre for North South Economic Research (CRENOS) ( email )

V. S. Ignazio 78
Cagliari, 09124
ITALY

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