7 resultados para non-renewable resources
em Corvinus Research Archive - The institutional repository for the Corvinus University of Budapest
Resumo:
The paper studies a generalisation of the dynamic Leontief input-output model. The standard dynamic Leontief model will be extended with the balance equation of renewable resources. The renewable stocks will increase regenerating and decrease exploiting primary natural resources. In this study the controllability of this extended model is examined by taking the consumption as the control parameter. Assuming balanced growth for both consumption and production, we investigate the exhaustion of renewable resources in dependence on the balanced growth rate and on the rate of natural regeneration. In doing so, classic results from control theory and on eigenvalue problems in linear algebra are applied.
Resumo:
The paper studies a generalisation of the dynamic Leontief input-output model. The standard dynamic Leontief model will be extended with the balance equation of renewable resources. The renewable stocks will increase regenerating and decrease exploiting primary natural resources. In this study the controllability of this extended model is examined by taking the consumption as the control parameter. Assuming balanced growth for both consumption and production, we investigate the exhaustion of renewable resources in dependence on the balanced growth rate and on the rate of natural regeneration. In doing so, classic results from control theory and on eigenvalue problems in linear algebra are applied.
Resumo:
The aim of the paper is to investigate the impact of recycling on the use of non-renewable resources in the economy. The paper tries to generalize the classical dynamic input–output model. In this regard we extend the standard Leontief model with the balance equation of recycled products, and we establish some properties of this augmented model. We investigate how recycling extends the availability of non-renewable natural resources for the next generations in an inter-industry framework. Supposing a balanced growth both for production and consumption, we examine the existence of the balanced growth path of this model and compare the results to the classical Leontief model. We try to answer the question whether recycling/reuse increases the growth possibility of an economy. Finally, we illustrate our results with a simple numerical example. Thus, we analyze a possible sustainable development of the economy on the basis of the product recovery management of industries.
Resumo:
In modern societies, humans are largely managing the world's natural resources as if they were limitless. ln fact, even the so-called renewable resources require time tor renewal once they have been used. This kind of human attitude puts pressure on Earth's ecosystems at an unprecedented scale. In order to reverse the recent trend, policies shall tackle the roots of the problems and the drivers behind them must be addressed in order to reduce the pressure on ecosystems, including the overuse of natural resources and ecological space. This publication aims to show good examples tor evaluating natural values and tor showing possible environmental and social impacts of various policies. Considering carefully the examples presented in this publication could play fundamental role in proper decision making that considers environmental and overall sustainability aspects.
Resumo:
The paper examines the role of EU cohesion policy in the field of human resources development and improving conditions for employment. The main objective of the analysis is to present a comprehensive picture about funding opportunities in connection with financing the activities of organisations of the social economy. As a background, the study stresses that the success of the European integration process depends to a great extent on the strength of economic and social cohesion between EU member states and regions. In order to create conditions for sustainable and balanced growth with social inclusion, there is a need to enhance the competitiveness of less developed regions combating the difficulties of structural change, and to improve their development prospects. To achieve this aim, one of the most important fields is to improve human resources. The paper points out, that EU cohesion policy has a crucial role in reducing disparities. After a general introduction to the EU level regional policy funding, the study focuses on the activities supported by the European Social Fund (ESF). The next part of the study deals with the possible types of the social economy projects and problems of self-financing. The author emphasises that social innovation emerges where State and markets fail to deliver for society (theory of non-profit/third sector) but not just to fix or replace them. The author concludes that these projects require state subsidies (official grants) at the beginning, but at the same time they can generate income. In this respect they follow same economic goals as other market actors, however, the crucial difference is that their main goal is not to make high profits for the owners. In the last part, as a concrete case study, the paper concentrates on the priorities of the Hungarian development plan in relation to social renewal. The author explains the priorities and fields of interventions of the social renewal programme. Finally, the chapter deals with the recent changes in the Hungarian employment policy and related measures supported by the European Social Fund. The chapter concludes that several employment programmes, projects for the development of social economy and programmes assisting the spreading of voluntariness and the training of volunteers have been launched with the co-financing of ESF.
Resumo:
Current energy systems are in most instances not fully working sustainably. The provision and use of energy only consider limited resources, risk potential or financial constraints on a limited scale. Furthermore, the knowledge and benefits are only available for a minor group of the population or are outright neglected. The availability of different resources for energy purposes determines economic development, as well as the status of the society and the environment. The access to energy grids has an impact on socio-economic living standards of communities. This not fully developed system is causing climate change with all its related outcomes. This investigation takes into consideration different views on renewable energy systems — such as international discussions about biomass use for energy production, “fuel versus food”, biogas use — and attempts to compare major prospects of social acceptance of renewable energy in Europe and Africa. Can all obstacles to the use of renewable energy be so profound that the overall strategy of reducing anthropogenic causes of climate change be seriously affected?
Resumo:
Current energy systems are in most instances not fully working sustainably. The provision and use of energy only consider limited resources, risk potential or financial constraints on a limited scale. Furthermore, the knowledge and benefits are only available for a minor group of the population or are outright neglected. The availability of different resources for energy purposes determines economic development, as well as the status of the society and the environment. The access to energy grids has an impact on socio-economic living standards of communities. This not fully developed system is causing climate change with all its related outcomes. This investigation takes into consideration different views on renewable energy systems — such as international discussions about biomass use for energy production, “fuel versus food”, biogas use — and attempts to compare major prospects of social acceptance of renewable energy in Europe and Africa. Can all obstacles to the use of renewable energy be so profound that the overall strategy of reducing anthropogenic causes of climate change be seriously affected?