Search results for " Structural change"

Structural change in a Ricardian world economy: The role of extensive rent

2019

Abstract We study an implication of the Ricardian theory of differential extensive rent in a free trade regime. To this effect we develop a Ricardian two country two commodity open economy model. We assume that, unlike labour, land is heterogeneous both within and across countries and that the ratio of high to low quality land is different among the trading countries. By means of a numerical example we show that as the process of worldwide capital accumulation (and population growth) proceeds an industrial country may find it convenient to increase its domestic corn production and even reverse completely the pattern of its imports and exports.

Glucagon fibril polymorphism reflects differences in protofilament backbone structure

2010

Amyloid fibrils formed by the 29-residue peptide hormone glucagon at different concentrations have strikingly different morphologies when observed by transmission electron microscopy. Fibrils formed at low concentration (0.25 mg/mL) consist of two or more protofilaments with a regular twist, while fibrils at high concentration (8 mg/mL) consist of two straight protofilaments. Here, we explore the structural differences underlying glucagon polymorphism using proteolytic degradation, linear and circular dichroism, Fourier transform infrared spectroscopy (FTIR), and X-ray fiber diffraction. Morphological differences are perpetuated at all structural levels, indicating that the two fibril class…

Nonlinear economic growth: Some theory and cross-country evidence

2007

Abstract This paper aims to test the existence of different growth regimes, that is of different relationships between growth rate and income level. We propose a simple nonlinear growth model and test its empirical implications by estimating Markov transition matrices and stochastic kernels. We show that growth is indeed nonlinear: a first phase of slow or zero growth is followed by a take-off and, finally, by a phase of deceleration. We discuss the relevance of these results with respect to the issue of convergence and reversibility of development, in the light of models of structural change and technological diffusion.

The environmental Kuznets curve within European countries and sectors: greenhouse emission, production function and technology

2018

Based on the environmental Kuznets curve (EKC) hypothesis and the technological change and the environment literature, our original contribution consists in analysing within the decomposition model the direct and indirect influence of technological change as well as the energy mix on CO2 emissions. Focusing on the dirtiest sectors of 25 EU countries in the period 1997-2005 and considering the endogeneity issue, we estimate an adjusted EKC relationship comparing a single equation model (univariate model) with a simultaneous equations system (bivariate model). Following Lopez (J Environ Econ Manag 27:163-184, 1994), a second equation is introduced where per capita income is a positive functio…

Present-day uplift of the European Alps: Evaluating mechanisms and models of their relative contributions

2019

Abstract Recent measurements of surface vertical displacements of the European Alps show a correlation between vertical velocities and topographic features, with widespread uplift at rates of up to ~2–2.5 mm/a in the North-Western and Central Alps, and ~1 mm/a across a continuous region from the Eastern to the South-Western Alps. Such a rock uplift rate pattern is at odds with the horizontal velocity field, characterized by shortening and crustal thickening in the Eastern Alps and very limited deformation in the Central and Western Alps. Proposed mechanisms of rock uplift rate include isostatic response to the last deglaciation, long-term erosion, detachment of the Western Alpine slab, as w…

Back to agriculture? Malthus, Torrens, and Ricardo on International Trade and Structural Change

2019

In this article, we have analyzed the relationships among international trade, structural change, and economic growth in Malthus 1817 and 1826, Torrens 1815, and Ricardo 1822. In his Essay and in the 1815 pamphlet Grounds of an Opinion Malthus addressed international trade policy issues and elaborated quite a few arguments, ranging from economics to geopolitics, to support food protectionism. In this article, we have focused on Malthus’s views concerning international trade-induced structural change and the long-run growth prospects of an industrial country that heavily depends on foreign corn imports to feed its own population. To put it briefly, Malthus claimed that, in the long run, agri…

Dynamique de la structure industrielle française

1990

Is Food Self-Sufficiency Conducive to Long-Term Growth? An Assessment of Malthus (1803) on the International Corn Trade.

2017

In this article, we have reconstructed Malthus’s views on growth and international corn trade in the second edition of his An Essay on the Principle of Population (1803) and shown their theoretical consistency with Malthus’s food self-sufficiency policy proposal advanced in Grounds of an Opinion on the Policy of Restricting the Importation of Foreign Corn ([1815] 1986b), the protectionist pamphlet that elicited Ricardo’s vehement reaction in “Essay on Profits.” Malthus’s (1803) main thesis was that the contemporary British unbalanced growth pattern was not viable. In order to avoid premature stagnation, he thought that Great Britain should both follow a pattern of balanced growth and pursue…

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…