Suchergebnisse

Os aplicadores da Constituição no Tribunal de Contas da União têm externado opiniões, nem sempre coincidentes, sôbre a competência da Justiça para conhecer dos mandados de segurança impetrados contra o mesmo Tribunal.

This paper addresses the impact of the CO2 opportunity cost on the wholesale electricity price in the context of the Iberian electricity market (MIBEL), namely on the Portuguese system, for the period corresponding to the Phase II of the European Union Emission Trading Scheme (EU ETS). In the econometric analysis a vector error correction model (VECM) is specified to estimate both long–run equilibrium relations and short–run interactions between the electricity price and the fuel (natural gas and coal) and carbon prices. The model is estimated using daily spot market prices and the four commodities prices are jointly modelled as endogenous variables. Moreover, a set of exogenous variables is incorporated in order to account for the electricity demand conditions (temperature) and the electricity generation mix (quantity of electricity traded according the technology used). The outcomes for the Portuguese electricity system suggest that the dynamic pass–through of carbon prices into electricity prices is strongly significant and a long–run elasticity was estimated (equilibrium relation) that is aligned with studies that have been conducted for other markets.

En Colombia, el acceso a las telecomunicaciones como soporte para el ejercicio de los derechos a la libertad de expresión e información derivados de la Declaración Universal de los Derechos Humanos, muestra un alto grado de conexidad entre las Nuevas Tecnologías de la Información y la Comunicación (TIC) y algunos derechos constitucionalmente reconocidos, en consonancia con la pretensión de parte del Estado colombiano de garantizar la difusión de las nuevas tecnologías para la información y las telecomunicaciones bajo el principio de neutralidad; lo cual aporta nuevos retos y oportunidades paraconstruir una sociedad más justa, igualitaria, participativa y democrática. No obstante se requiera bajo esta consideración de un nuevo escenario político social y económico de acciones, tendiente a evitar nuevos tipos de exclusión y discriminación,entre ellas la informática, la alfabetización digital y la conectividad total, que constituyen el desafío más importante de la era digital en manos de los constructores de la sociedad del conocimiento y la información.

Estudos sobre eleitores partidários no Brasil mostram o declínio do partidarismo e dos sentimentos em relação aos partidos. Como a identidade partidária se mantém nesse cenário político? Argumentamos que, mesmo quando não avaliam bem o próprio partido, a identificação partidária se sustenta por meio dos sentimentos interpartidários, que se deterioram ao longo dos anos no país. A partir de dados do Estudo Eleitoral Brasileiro (ESEB) entre 2002 e 2018, os dados sugerem que os partidários estão menos entusiasmados com os partidos brasileiros e a relação entre sentimentos partidários se acentuou no contexto eleitoral mais recente. Os resultados da relação entre sentimentos partidários, utilizando um termo quadrático, indicam que as principais alternativas ao petismo justificam uma identidade partidária essencialmente na estratégia do menor dos males: a maior deterioração da imagem dos oponentes políticos como um mecanismo de justificativa da ambivalência em relação ao próprio partidarismo.

We develop a real options model that examines the effect of government's subsidies and taxation policy on the timing and size of investments. We find that a higher depreciation rate or subsidy, or a lower tax rate, accelerates investments. The effect of subsidies on the investment size depends on whether the subsidy is fixed or variable: a fixed subsidy induces smaller size investments, whereas a variable subsidy encourages larger size investments. The tax and depreciation rates do not affect the size of the investment. For revenue-neutral incentive packages, the effect of changes in the above variables on the investment timing and size is not necessarily monotonic and it depends on the instrument of the tax-subsidy policy that is used to keep the new policy revenue neutral. There are also economic contexts in which an increase in the tax rate can accelerate investments of a larger scale.

Following on from Volume 4 in this series, which looked at issues and challenges with regard to Climate Change Adaptation (CCA) and Disaster Risk Reduction (DRR), Volume 5 has a specific focus on Asia. Arguably among the regions of the world most vulnerable to climate change, Asia has different mechanisms for CCA and DRR activities. Synergies between DRR and CCA in this region are necessary not only to avoid duplicities and derive optimal benefits from scarce resources but also to add value to projects through lessons learnt from a variety of perspectives. This volume provides 19 case studies