6 resultados para Interval of solidification
em Repositório digital da Fundação Getúlio Vargas - FGV
Resumo:
a theoretical model is constructed in order to explain particular historical experiences in which inflation acceleration apparently helped to spur a period of economic growth. Government financed expenditures affect positively the productivity growth in this model so that the distortionary effect of inflation tax is compensated by the productive effect of public expenditures. We show that for some interval of money creation rates there is an equilibrium where money is valued and where steady state physical capital grows with inflation. It is also shown that zero inflation and growth maximization are never the optimal policies.
Resumo:
We construct and simulate a theoretical model in order to explain particular historical experiences in which inflation acceleration apparently helped to spur a period of economic growth. Government financed expenditures affect positively the produtivity growth in this model so that the distortionary effect of inflation tax is compensated by the productive effect of public expenditures. We show that for some interval of money creation rates there is an equilibrium where money is valued and where steady state physica1 capital grows with inflation. It is a1so shown that zero inflation and growth maximization are never the optimal policies.
Resumo:
This paper investigates the impact of FDI on the productivity of Portuguese manufacturing sectors. Model specification is improved by considering the choice of the most appropriate interval of the technological gap for spillovers diffusion. We also allow for sectoral variation in the coefficients of the spillover effect; idiosyncratic sectoral factors are identified by means of a fixed effects model. Inter-sectoral positive spillover effects are examined. Significant spillovers require a proper technological differential between foreign and domestic producers and favourable sectoral characteristics. They may occur in modern industries in which the foreign firms have a clear, but not too sharp, edge on the domestic ones. Agglomeration effects are also one pertinent specific influence.
Resumo:
The new economy stimulated by the bigger Internet participation as an interaction mean between people and business has been changing the companies¿ management routine. Nowadays, Internet access goes through telephones, in the houses and offices, or through nets of the Intranet kind, with the users in their working settings. The Internet personal access added, with mobility, surely will bring changes to our contacting form to the outside world as well as it will create a possibility of giving the customers a bigger variety of products and services. The present study aims are: (i) to verify the customers behaviours related to this new media, presented in the mobiles digital screens; (ii) to explore some of their main features, and (iii) to compare them with the other media features, as the radio and the TV ones. The applied research methodology was the data collecting through phone interviews. To obtain a Confidence Interval of 95%, 470 WAP, Internet, radio and TV current users¿ answers were gotten. To compare the media, the Fishbein multi-attributes model was used what possibilities to form comparative scores of the attributes built for the research. To mark the discussion concerning the public behaviour related to the differentiated use of the mentioned media out, the study produced uses the McLuhan theoretical reference (1969), specially concerning to his theoretical building, denominated hot and cold means. But this referential theoretic mark could not be supported by the accomplished quantitative study result. The comparison of built attribute scores averages has differentiated the hot media WAP, like radio, as well as the cold media one, like TV. This way, showing that the access new technology appearance, WAP, not only enlarges the Internet use, but also appoints to a new theoretic classification possibility to this new media. The accomplished quantitative research revealed that, through the user point of view, the ¿Contents¿ category is considered as one of the most important WAP aspects. The TV and the radio received significantly lower grades in this subject. The public considers that is important that the WAP information is ¿trustworthy¿, ¿easy¿ to find, ¿available¿, ¿sufficient¿ and that attends the ¿urgency¿ expected by the user. It was observed that the WAP score ¿emotion¿ is inferior to the radio and TV and superior to the Internet ones. But, the differences found are not significant. Considering the low score of importance given to the attributes group ¿emotion¿, is not recommended the WAP use as media when the emotional users aspects are wanted to be reached.
Resumo:
É consenso na análise antitruste que o ato de concentração de empresas com participação significativa deve sofrer averiguações quanto a sua aprovação em decorrência dos efeitos prejudiciais que pode gerar sobre a concorrência na indústria. Concorrência é sempre desejável por favorecer melhores níveis de bem-estar econômico. À luz das investigações econômicas que os sistemas de defesa da concorrência realizam, este trabalho analisa as mensurações da simulação de efeitos unilaterais de concentrações horizontais. As avaliações realizadas testam a utilização do modelo PC-AIDS (Proportionaly Calibrated AIDS), de Epstein e Rubinfeld (2002). Dentre algumas conclusões que se extraem do uso do modelo temos que: (i) em mercados com baixa concentração econômica, o modelo avaliado para um intervalo da vizinhança da elasticidade-preço própria estimada, traz mensurações robustas, e (ii) para mercados com alta concentração econômica uma atenção maior deve ser dada à correspondência dos valores calibrados e estimados das elasticidades-preços próprias, para que não ocorra sub ou superestimação dos efeitos unilaterais do ato de concentração. Esse resultado é avaliado no caso Nestlé/Garoto.
Resumo:
Com a crescente elevação nas possibilidades de utilização da biomassa nos mais diversos setores da indústria, o presente estudo visa identificar uma alternativa para aumentar a produção utilizando, para tanto, o capim elefante (Pennisetum purpureum) e sorgo sacarino (Sorghum bicolor L.). Os experimentos foram realizados na Fazenda Vitória (4°21'36"S 38°5'17"W) em Beberibe – CE, em uma área total de 1.944 m2. A semeadura foi realizada em 36 parcelas de 54 m2, em delineamento inteiramente casualizado, sendo 9 tratamentos (genótipos) e 4 repetições. Foram utilizados seis diferentes genótipos de sorgo sacarino, s_1, s_2, s_3, s_4, s_5 e s_6. Fazem parte do estudo, ainda, um híbrido de capim elefante e milheto (Pennisetum glaucum), comercialmente conhecido como paraíso, e dois tratamentos de capim elefante, Cameroon e Napier. Para o sorgo sacarino, foram realizadas três colheitas, a primeira avaliada semanalmente e as demais com avaliação única. Para o capim elefante foram realizadas duas colheitas, a primeira com intervalo de 186 dias e a segunda com intervalo de 92 dias. Esse intervalo possibilitou a comparação da produtividade de biomassa de cada tratamento de forma trimestral e semestral. Os resultados observados mostraram que os tratamentos de maior destaque de produtividade de biomassa (base seca) foram com capim elefante, independente do período. Com base nessas informações, concluiu-se que, analisando apenas a produtividade de biomassa, o mais indicado dos tratamentos estudados é o capim elefante Napier ou Cameroon. No entanto, constatou-se que o sorgo sacarino apresentou grande potencial de produtividade com um aditivo, seu mosto pode ser utilizado no processo de fermentação para obtenção do etanol.