The emission reduction effect and economic impact of an energy tax vs. a carbon tax in China : a dynamic CGE model analysis

Chinese government commits to reach its peak carbon emissions before 2030, which requires China to implement new policies. Using a CGE model, this study conducts simulation studies on the functions of an energy tax and a carbon tax and analyzes their effects on macro-economic indices. The Chinese economy is affected at an acceptable level by the two taxes. GDP will lose less than 0.8% with a carbon tax of 100, 50, or 10 RMB/ton CO2 or 5% of the delivery price of an energy tax. Thus, the loss of real disposable personal income is smaller. Compared with implementing a single tax, a combined carbon and energy tax induces more emission reductions with relatively smaller economic costs. With these taxes, the domestic competitiveness of energy intensive industries is improved. Additionally, we found that the sooner such taxes are launched, the smaller the economic costs and the more significant the achieved emission reductions.

Fighting tax evasion: a cellular automata approach

Estudio de la dinámica de una población donde los individuos son contribuyentes (pagadores de impuestos) o no mediante un autómata celular 2D

A journey through Spain in the years 1786 and 1787 : with particular attention to the agriculture, manufactures, commerce, population, taxes and revenue of that country and remarks in passing through a part of France

Sign.: A4, B-Z8, Aa-Bb8, Cc4

A journey through Spain in the years 1786 and 1787 : with particular attention to the agriculture, manufactures, commerce, population, taxes, and revenue of that country and remarks in passing through a part of France

Contiene: "Appendix" con las equivalencias entre la moneda castellana y la inglesa y un indice de nombres geograficos

Differential activation of proliferation and cytotoxicity in human T-cell lymphotropic virus type I Tax-specific CD8 T cells by an altered peptide ligand.

Human T-cell leukemia virus type I (HTLV-I) gives rise to a neurologic disease known as HTLV-I-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Although the pathogenesis of the disease is unknown, the presence of a remarkably high frequency of Tax-specific, cytotoxic CD8 T cells may suggest a role of these cells in the development of HAM/TSP. Antigen-mediated signaling in a CD8 T-cell clone specific for the Tax(11-19) peptide of HTLV-I was studied using analog peptides substituted in their T-cell receptor contact residues defined by x-ray crystallographic data of the Tax(11-19) peptide in the groove of HLA-A2. CD8 T-cell stimulation with the wild-type peptide antigen led to activation of p56lck kinase activity, interleukin 2 secretion, cytotoxicity, and clonal expansion. A Tax analog peptide with an alanine substitution of the T-cell receptor contact residue tyrosine-15 induced T-cell-mediated cytolysis without activation of interleukin 2 secretion or proliferation. Induction of p56lck kinase activity correlated with T-cell-mediated cytotoxicity, whereas interleukin 2 secretion correlated with [3H]thymidine incorporation and proliferation. Moreover, Tax peptide analogs that activated the tyrosine kinase activity of p56lck could induce unresponsiveness to secondary stimulation with the wild-type peptide. These observations show that a single amino acid substitution in a T-cell receptor contact residue of Tax can differentially signal CD8 T cells and further demonstrate that primary activation has functional consequences for the secondary response of at least some Tax-specific CD8 T cells to HTLV-I-infected target cells.

O orçamento como instrumento de intervenção no domínio econômico

Este trabalho versa sobre a utilização do orçamento público como instrumento de intervenção no domínio econômico, demonstrando, em síntese, de que forma o Estado utiliza, ou ao menos deveria utilizar, o orçamento público como instrumento de planejamento de suas ações e de intervenção na atividade desempenhada pela iniciativa privada. Tem-se por objetivo contribuir para a compreensão jurídica de diversas questões atinentes à elaboração e execução da peça orçamentária federal, aos reflexos causados na economia e na atividade desempenhada pela iniciativa privada, especialmente no que toca à realização das receitas e despesas públicas, à elaboração das leis orçamentárias Plano Plurianual (PPA), Lei Orçamentária Anual (LOA) e Lei de Diretrizes Orçamentárias (LDO) e, também, aos interesses, às paixões e ideologias envolvidas em todo o processo financeiro. Para tanto, inicialmente, estuda o papel do Estado, distinguindo os campos de atuação privada e aquele reservado à Administração Pública, os modos de intervenção e aqueles aplicados à hipótese analisada, para, em seguida, proceder à análise da peça orçamentária, sua concepção atual e relevância para a iniciativa privada, o que possibilita, então, tratar de questões que envolvam as receitas públicas, em específico as tributárias e as despesas públicas. Por fim, trata do crédito público e, com isso, procura evidenciar de que forma, sob a ótica do orçamento público e nos limites legais de atuação do Estado, as previsões constantes do orçamento podem funcionar como instrumento de promoção, incentivo e estímulo, ou, em sentido contrário, limitar, frear ou desestimular o crescimento econômico e a atividade desenvolvida pela iniciativa privada.

Smoothed bootstrap Malmquist index based on DEA model to compute productivity of tax offices

This paper analyses the productivity growth of the SUMA tax offices located in Spain evolved between 2004 and 2006 by using Malmquist Index based on Data Envelopment Analysis (DEA) models. It goes a step forward by smoothed bootstrap procedure which improves the quality of the results by generalising the samples, so that the conclusions obtained from them can be applied in order to increase productivity levels. Additionally, the productivity effect is divided into two different components, efficiency and technological change, with the objective of helping to clarify the role played by either the managers or the level of technology in the final performance figures.

Special Tax on Real Estate belonging to Non-resident Corporations in Spain

Análisis del impuesto español sobre bienes inmuebles de no residentes.

C. Tax bills, 1785-1805

This subseries contains ten printed tax bills filled out in manuscript for William Croswell between 1785 and 1805.

Parish tax, 1797

Small printed leaf containing the Cambridge parish tax list for Eliphalet Pearson for June 1797.