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| Registros recuperados: 10 | |
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| Dhehibi, Boubaker; Lachaal, Lassaad; Chebil, Ali. |
| The aim of this paper is to analyze and determine the factors influencing fish demand in Tunisia during the 1975-2000 period. A Box-Cox transformation is used to select the appropriate functional form between linear and double-log models. Results indicate that the double-log form fits better the data and is used for the empirical analysis. Calculated elasticities from static model show that fish demand is price-inelastic and that fish can be considered as a normal good. However, the dynamic analysis using Houthakker-Taylor model suggests that fish consumption in Tunisia depends on consumers psychological-buying habits. Finally, the values of the short and the long-run elasticities indicate that per capita consumption of fish in Tunisia is growing, but at a... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Fish demand; Box-Cox transformation; Double-log model; Tunisia; Demand and Price Analysis; D12; C22. |
| Ano: 2005 |
URL: http://purl.umn.edu/24715 |
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| Chebbi, Houssem Eddine; Lachaal, Lassaad. |
| For the past two decades, Tunisia has been undertaken important structural reforms, which call in most cases for market and trade liberalization (agricultural structural adjustment program, GATT reforms, free trade area with the European Union). The private-led type of growth strategy with less government intervention has culminated these last years into a more rapid economic growth and openness. Within this context, this paper examines the agricultural sector role into the economic growth and its interactions with the other sectors using time-series co-integration techniques. We use annual data from 1961 to 2005 to estimate a VAR model that includes GDP indices of five sectors in Tunisian economy. Empirical results from this study indicate that in the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Co-integration; Economic growth; Agricultural sector; Tunisia; International Development; C22; O13; Q18. |
| Ano: 2007 |
URL: http://purl.umn.edu/9416 |
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| Lachaal, Lassaad; Chebil, Ali; Dhehibi, Boubaker. |
| This study investigates firm level technical efficiency of production and its determinants in the Tunisian agro-food industry. To this end, a stochastic production frontier model, in which technical efficiency effects are assumed to be a function of firm-specific variables and time, is estimated using panel data on 46 agro-food firms observed over a period of 14 years. Results indicate that technical efficiency in the sample of firms investigated ranges from a minimum of 45% to a maximum of 90% with an average technical efficiency estimate of 67%. Further, investigation of the sources of technical inefficiency in the sample reveals that the age of capital stock and firm size are negatively associated with efficiency, the share of skilled labour is... |
| Tipo: Journal Article |
Palavras-chave: Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2004 |
URL: http://purl.umn.edu/26450 |
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| Dhehibi, Boubaker; Lachaal, Lassaad; Elloumi, Mohamed; Messaoud, Emna B.. |
| This paper proposes an alternative measure of irrigation water efficiency based on the concept of input-specific technical efficiency. It uses a stochastic production frontier approach, based on Battese and Coelli’s (1995) inefficiency effect model, to obtain farm-specific estimates of technical and irrigation water efficiency, and a second-stage regression approach to identify the factors that influence irrigation water efficiency differentials. This methodology was applied to a sample of 144 citrus farms in Nabeul, Tunisia. Technical efficiency varies widely, suggesting that these citrus farmers could increase their production by as much 33% by using inputs more efficiently. Mean irrigation water efficiency is similarly variable, and on average below... |
| Tipo: Journal Article |
Palavras-chave: Water efficiency; Stochastic frontier production function; Citrus farms; Tunisia; Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/57013 |
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| Dhehibi, Boubaker; Lachaal, Lassaad; Karray, B.; Chebil, Ali. |
| The aim of this paper is to investigate the relative contribution of technical efficiency, technological change and increased input use to the output growth of the Tunisian olive oil growing farms using a stochastic frontier production function approach applied to panel data for the period 1995- 1997. The proposed methodology is based on the use of a flexible translog functional form. Results indicate that technical efficiency of production in the sample of olive producing farms investigated ranges from a minimum of 24.8% to a maximum of 84.6% with an average technical efficiency estimate of 48.5%. This suggests that olive producers may increase their production by as much as 51.5% through more efficient use of production inputs. Further, the production is... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Olive oil sector; Tunisia; Productivity; Crop Production/Industries; Demand and Price Analysis. |
| Ano: 2006 |
URL: http://purl.umn.edu/10037 |
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| Dhehibi, Boubaker; Lachaal, Lassaad. |
| This paper analyse the patterns of productivity and economic growth in the Tunisian agriculture during the 19612000. Results indicated that agriculture output growth where high in both the 19611970 and the 19711980 periods but decreased during the 19912000 period. Average output growth exceeded 6% during the 19811990 period, the average output growth during 19912000 had fallen to 4%. Over the whole period, capital was the most important contributor to output growth and labour is considered as the least significant contributor to economic growth. Total factor productivity contribution to output growth decreased from 4.64% in 19611970 to 2.86% in 19711980. In contrast, this contribution increased in 1981-1990 to close the 4.38%. In the last period,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Production function; Translog; Agriculture; TFP; Tunisia; International Development; Productivity Analysis; C8; O13; O14. |
| Ano: 2006 |
URL: http://purl.umn.edu/25707 |
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| Registros recuperados: 10 | |
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