PUBLIC CAPITAL, EMPLOYMENTAND TOTAL FACTOR PRODUCTIVITY: EVIDENCE FROM ITALIAN TRANSPORT SECTOR

Cosimo Magazzino () and Eva Valleri

Articles, 2012, vol. 39, issue 1

Abstract: This paper uses time series methodologies to examine the causal relationship among capital stock, total labour force and Total Factor Productivity (TFP) applied to transport sector for Italy, using annual data for the period 1970-2007. After an introduction, a literature review is carried out, before discussing the econometric methodology and data. Stationarity tests clearly show that the series are I(1) processes. Our estimation results indicate that one cointegrating relationship exists among these variables. Moreover, there is a bidirectional Granger causality flow between real public capital and labour force, as well as between public capital and TFP ; while productivity Granger-causes labour force but not the other. The Forecast Errors Variance Decompositions (FEVD) show that errors in real public capital are mainly due to uncertainty in labour force and in public capital itself, and that labour force errors are due to labour force itself. Forecast errors in productivity instead, are mainly due to TFP itself, although public capital is also important.

Date: 2012
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