Search results for "Convergence"

Unknown order process emulation

2002

Approaches the emulation problem using feedforward neural networks of single input single output (SISO) processes, applying a backpropagation method with a higher convergence rate. In this kind of application, difficult problems appear when the system's order is a priori unknown. A search through the SISO processes space is proposed, aiming to find a favorable neural emulator over the training examples set.

Cascades and multifilters

2000

Abstract Cascades (trees every element of which is a filter on the set of its successors), and multifilters, maps from cascades, are introduced. Multisequences constitute a special case of multifilters. Applications to convergence and to topology are indicated.

The competitive development of flowers and ornamental firms through the use of web-marketing strategies: a survey in the convergence objective region…

2011

A Multi-Port Approach to Solve Distribution Networks with Meshes and PV Nodes

2007

A new methodology based on the backward/forward (b/f) technique for the load flow solution in distribution systems is here proposed. The methodology takes efficiently into account the fixed voltage nodes and uses a reduced bus impedance matrix. In this way, it is possible to attain, for the unknowns at the PV nodes, the same values that are attainable solving the network with the methods adopted for transmission systems. With the same methodology it is possible to take into account also the meshes. If the network contains only meshes, the relevant model is linear and it is the one including the compensation currents. The presence of PV nodes introduces non linearity in the model and an iter…

Strategies for conservation of a minority language. Between convergence and hybridization

2019

The Arbëresh linguistic varieties constitute a rich field of investigation for interesting phenomena of language attrition and contact. Because of the ancient and prolonged situation of bilingualism between Albanian and Italo-Romance varieties an interesting set of phenomena of code-switching, loan, convergence and hybridization has presented itself. This research concerns the Arbëresh linguistic minority of Greci, a small town in the Campanian region of southern Italy. Within Arbëria, the widespread archipelago of Albanian-speaking communities which occupies a vast territory in southern Italy, the preservation of Arbëresh presents very different sociolinguistic situations. Inside Arbëria G…

On the Determinants of Distribution Dynamics

2013

n this paper we propose a novel approach to identify the impact of growth determinants on the distribution dynamics of productivit y. Our approach integrates counterfactual analysis with the estima tion of stochastic kernels. The counterfactuals are constructed from a semi-parametric growth regression, in which the cross-section heterogeneity in the growth determinants is removed. The methodology also allows us to test for potential distributional effects in the residuals. We illustrate the usefulness of the proposed methodology by an application to a cross-section of countries, which highlights the significant impact on inequality and polarization in the world productivity distribution of …

Counterfactual Distribution Dynamics across European Regions

2009

This paper proposes a methodology which combines elements of parametric regression analysis with the nonparametric distribution dynamics approach in order to analyse the role of some variables in the convergence of productivity across European regions over the period 1980-2002. We find that the initial productivity crucially accounts in the convergence process across European regions. Differently, employment growth seems not to play a role, while the Structural and Cohesion Funds seem to play a positive role, even though such effect seems to be very low and statistically significant only at the low bound of the range of initial productivity. The structural change of regional economies plays a p…

Productivity Dynamics across European Regions: the Impact of Structural and Cohesion Funds

2009

This paper analyzes the impact of the European Union regional policy of the three programming periods 1975-1988, 1989-1993 and 1994-1999 on the dynamics of productivity of European regions. On average, funding had a positive, but concave, effect on productivity growth. In particular, a share of funds on GVA of 10% GVA is estimated to raise the regional growth rate of about 0.9% per year. However, by separately considering the three programming periods and the composition of the funds according to the objectives defined by the EU, we find that: i) only the funds allocated in the second and third programming periods, when they remarkably increased, had a significant impact; and ii) only Objective…

A spatially-filtered mixture of beta-convergence regressions for European regions, 1980-2002

2009

Interest Rate Convergence, External Balances and the Euro Crisis

2016

Typically, the catching-up process between rich Northern Europe and poor Southern Europe and the diverging cost competitiveness between the two regions are considered alternative explanations for the widening current account imbalances in the euro area. This paper proposes a new explanation for the imbalances which led to the 2009 euro crisis i.e. large interest rate differentials among the EMU-12 countries which prevailed before the adoption of the euro. This finding suggests that the euro crisis was, at least to some extent, a consequence of the initial convergence shock.