Title: The informal economy in Tunisia: measurement and linkage with the formal economy

Authors: Mehdi Abid; Ousama Ben Salha

Addresses: Higher Institute of Management, University of Sousse, Rue Abdelaziz il Behi, B.P. 763, Sousse, 4000, Tunisia; Development and Tourism Research Unit, Faculty of Economics and Management of Sousse, University of Sousse, Tunisia ' Higher Institute of Management, University of Sousse, Rue Abdelaziz il Behi, B.P. 763, Sousse, 4000, Tunisia; International Finance Group-Tunisia, Faculty of Economics and Management of Tunis, University of Tunis El Manar, Tunisia

Abstract: This paper has two main goals. The first is to estimate the size of the informal economy between 1980 and 2009 in Tunisia. The second objective is to check for the causal relationship from the formal economy to the informal economy. When calculating the size of the informal economy, we were based on a recent environmental approach proposed by Karanfil and Ozkaya (2007). Our results, based on the estimation of the Kalman filter, reveal that the informal GDP has a U-shaped curve over time. Furthermore, the informal GDP is found to range between 14% and 29% of the formal GDP during the same period. Cointegration and Granger causality tests show that there is a causal relationship running from the formal GDP to the informal GDP. Moreover, the former seems to negatively affect the latter.

Keywords: informal economy; formal economy; Kalman filter; cointegration; Granger causality; Tunisia.

DOI: 10.1504/IJEBR.2013.055539

International Journal of Economics and Business Research, 2013 Vol.6 No.2, pp.194 - 209

Published online: 30 Dec 2013 *

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