We discuss a family of clusters C corresponding to the region whose boundary is formed by a fractional Brownian path y(i) and by the moving average function yn(i)≡1n∑k=0n−1y(i−k). Our model generates fractal directed patterns showing spatio-temporal complexity, and we demonstrate that...

The ageing of farmers and lack of successors are major concerns for the future of the sector. The paper analyses the age structure of family workers with a twofold objective. The ageing dynamics is analyzed in order to seek out its inertial components as well as any new trends there may be. The...

The paper contribute to the assessment of PDO/PGI schemes by building an approach to measuring the actual performance of the PDO/PGI products in relation to the objectives of the European Regulation 510/2006. This is done through a multi-criteria ex-post analysis that compares the performance of...

We study the performance of the so called Made in Italy agri-food exports over the last fifteen years, merging the strand of analysis that estimated price and demand elasticities with that considering more explicitly the role of product quality. We proceed in three steps. First, we estimate the...

Non-price competition is increasingly important in world food markets. Recently, the expression export sophistication has been introduced in the economic literature to refer to a wide set of attributes that increase product value. An index has been proposed to measure sophistication in an...

The Hurst exponent H of long range correlated series can be estimated by means of the detrending moving average (DMA) method. The computational tool, on which the algorithm is based, is the generalized variance σDMA2=1/(N-n)∑i=nN[y(i)-y˜n(i)]2, with y˜n(i)=1/n∑k=0ny(i-k) being the average...

This paper explores agri-food export dynamics in New Member States (NMS) and Old Member States (OMS) of the European Union during the enlargement process. A quality-oriented survey is conducted by developing an original analytical framework which combines information from trade similarity...

Fischlers Reform of the Cap has introduced economic support to reinforce the range of instruments aimed at promoting food quality. Before the Reform, European Union market intervention for food quality was confined to the regulatory ground. The paper discusses the economic justifications for...