miércoles, 24 de octubre de 2012

Green Growth

Varios elementos recientes e interesantes relacionados con la factibilidad de un crecimiento "verde" o sostenible:

- un paper reciente de Smulders y Withagen que nos dice que es posible, si uno pone las condiciones adecuadas:
This paper reviews dynamic general equilibrium models in order to collect insights on the interaction between economic growth and environmental issues. The authors discuss the Ramsey model and extend it for natural resource inputs and pollution, as well as for endogenous technical change. Green growth becomes within reach if there is good substitution, a clean backstop technology, a small share of natural resources in gross domestic product, and/or green directed technical change.
- otro paper que cuestiona la efectividad de este tipo de crecimiento para reducir la pobreza
The developing world is experiencing substantial environmental change, and climate change is likely to accelerate these processes in the coming decades. Due to their initial poverty, and their relatively high dependence on environmental capital for their livelihoods, the poor are likely to suffer most due to their low resources for mitigation and investment in adaptation. Economic growth is essential for any large-scale poverty reduction. Green growth, a growth process that is sensitive to environmental and climate change concerns, is often seen to be particularly helpful in this respect, leading to a win-win in growth and poverty reduction terms, with additional gains for the cause of greening the planet and avoiding further disastrous environmental change. This paper argues that such a view ignores important trade-offs in the nature of "green growth" strategies, stemming from a poor understanding of the sector and spatial processes behind effective poverty reduction. High labor intensity, declining shares of agriculture in gross domestic product and employment, migration, and urbanization are essential features of poverty-reducing growth. The paper contrasts some common and stylized green-sensitive growth ideas related to agriculture, trade, technology, infrastructure, and urban development with the requirements of poverty-sensitive growth. It finds that they may well cause a slow-down in the effectiveness of growth in reducing poverty. The main lesson therefore is that trade-offs are bound to exist; they increase the social costs of green growth and should be explicitly addressed. If not, green growth may not be good for the poor and the poor should not be asked to pay the price for sustaining growth while greening the planet.
- y la visión de Tom Heller sobre cuál es el futuro.

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