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| Roson, Roberto. |
| This paper considers the technical aspects and the consequences, in terms of simulation results and policy assessment, of introducing imperfect competition in a CGE model. The modifications to the standard CGE framework needed to model imperfect competition in some industries are briefly discussed. Next, the paper discusses whether, how much and why, those changes may affect the qualitative output of a typical simulation experiment. It is argued that technical choices made in designing the model structure may have a significant impact on the model behavior. This is especially evident when the output of the model, under an imperfect competition closure, is compared with that obtained under a standard closure, assuming perfect competition. As an... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2006 |
URL: http://purl.umn.edu/12061 |
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| Calzadilla, Alvaro; Pauli, Francesco; Roson, Roberto. |
| We use a general equilibrium model of the world economy, and a regional economic growth model, to assess the economic implications of vulnerability from extreme meteorological events, induced by the climate change. In particular, we first consider the impact of climate change on ENSO and NAO oceanic oscillations and, subsequently, the implied variation on regional expected damages. We found that expected damages from extreme events are increasing in the United States, Europe and Russia, and Russia, and decreasing in energy exporting countries. Two economic implications are taken into account: (1) short-term impacts, due to changes in the demand structure, generated by higher/lower precautionary saving, and (2) variations in regional economic growth... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/12055 |
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| Eboli, Fabio; Parrado, Ramiro; Roson, Roberto. |
| Human-generated greenhouse gases depend on the level of economic activity. Therefore, most climate change studies are based on models and scenarios of economic growth. Economic growth itself, however, is likely to be affected by climate change impacts. These impacts affect the economy in multiple and complex ways: changes in productivity, resource endowments, production and consumption patterns. We use a new dynamic, multi-regional Computable General Equilibrium (CGE) model of the world economy to answer the following questions: Will climate change impacts significantly affect growth and wealth distribution in the world? Should forecasts of human-induced greenhouse gases emissions be revised, once climate change impacts are taken into account? We found... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/52339 |
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| Roson, Roberto; Bosello, Francesco; De Cian, Enrica. |
| Future energy demand will be affected by changes in prices and income, but also by other factors, like temperature levels. This paper draws upon an econometric study, disentangling the contribution of temperature in the determination of the annual regional demand for energy goods. Combining estimates of temperature elasticities with scenarios of future climate change, it is possible to assess variations in energy demand induced (directly) by the global warming. We use this information to simulate a change in the demand structure of households in a CGE model of the world economy, in a set of assessment exercises. The changing demand structure triggers a structural adjustment process, influencing trade flows, regional competitiveness of industries and... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Climate Change; Energy; Computable General Equilibrium Models; Imperfect Competition; Resource /Energy Economics and Policy; D58; F12; Q43; Q54. |
| Ano: 2007 |
URL: http://purl.umn.edu/9095 |
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| De Cian, Enrica; Lanzi, Elisa; Roson, Roberto. |
| This paper presents an empirical study of energy demand, in which demand for a series of energy goods (Gas, Oil Products, Coal, Electricity) is expressed as a function of various factors, including temperature. Parameter values are estimated econometrically, using a dynamic panel data approach. Unlike previous studies in this field, the data sample has a global coverage, and special emphasis is given to the dynamic nature of demand, as well as to interactions between income levels and sensitivity to temperature variations. These features make the model results especially valuable in the analysis of climate change impacts. Results are interpreted in terms of derived demand for heating and cooling. Non-linearities and discontinuities emerge, making it... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Energy Demand; Cooling Heating Effect; Temperature; Dynamic Panel; Resource /Energy Economics and Policy; C3; Q41; Q54. |
| Ano: 2007 |
URL: http://purl.umn.edu/9322 |
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| Bigano, Andrea; Bosello, Francesco; Roson, Roberto; Tol, Richard S.J.. |
| Climate change impacts on human life have well defined and different origins, nevertheless in the determination of their final effects, especially those involving social-economic responses, interactions among impacts are likely to play an important role. This paper is one of the first attempts to disentangle and highlight the role of these interactions. It focuses on the economic assessment of two specific climate change impacts: sea-level rise and changes in tourism flows. By using a CGE model the two impacts categories are first analyzed separately and then jointly. Comparing the results it is shown that, even though qualitatively joint effects follow the outcomes of the disjoint exercises, quantitatively impact interactions do play a significant role.... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy; Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/12022 |
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