Foram encontradas 395 questões.
Suponha que o consumidor I tenha a função de utilidade U(x,y) = x + 2y e o Consumidor II tenha a função de utilidade U(x,y) = min{x,2y}. O Consumidor I tem inicialmente 12 unidades de y e zero unidades de x, enquanto o Consumidor II tem 12 unidades de x e zero unidades de y. É correto afirmar que, no equilíbrio competitivo:
Item 3 - a cesta de consumo de I será: (xs = 6, ys = 9).
Provas
Questão presente nas seguintes provas
Research outputs apart, the very structure of agricultural research is changing in response to the needs and demands of wealthy farmers, consumers, and researchers. It is well known that biotechnology is concentrated mainly on the products, conditions, and factor intensities of big Western farmers. This, and similar trends in other areas of agricultural research, threatens to substantially reduce the proportion of research devoted to the farm products, labor intensities, and local resource degradation threats that concern smallholders in poor countries. All this provides exogenously structured incentives (and funds) for international and national agricultural research systems that do not focus on reducing the rate of resource degradation in developing rural areas.
The following statements summarize some of the main ideas presented in the text:
Item 1 - Environmental problems in developing country rural areas are of their own making.
Provas
Questão presente nas seguintes provas
No período 1981-83 a economia brasileira defrontou-se com acentuadas dificuldades cambiais. Contribuíram para tais dificuldades:
Item 0 - a crise recessiva vivida pelas economias centrais em 1981-82;
Provas
Questão presente nas seguintes provas
Many authors attribute much resource degradation in developing rural areas (DRAs) to market failure and policy failure – failure, in each case, to “reflect environmental values.” Other authors attribute much resource degradation to incorrect domestic policies affecting relative prices. This chapter suggests, instead, that most resource degradation in DRAs responds to the success of domestic markets and policies. They succeed in communicating to rationally maximizing agents (households, firms, managers of common property) that changes in prices (especially real interest rates) and in technical options increasingly favor accelerated resource degradation.
According to the text, much of natural resource degradation in developing rural areas (DRAs) has been (or can be) attributed to:
Item 4 - the failure of domestic markets and policies to inform decision makers about relevant changes in prices and in technical options.
Provas
Questão presente nas seguintes provas
Assinale certo ou errado:
Item 4 - !$ \underset{n\rightarrow +\infty }{\lim } !$ !$ {\large{-1+(\cos(\large{ \pi x \over 2}))^n \over 1+(\cos (\large{ \pi x \over 2}))^n}}=-1 !$, para !$ 0 < x < 1 !$.
Provas
Questão presente nas seguintes provas
Avalie o item abaixo, relativas à equivalência ricardiana:
Item 4 - A hipótese de que os consumidores são indiferentes ao bem-estar das gerações futuras enfraquece a teoria da equivalência ricardiana.
Provas
Questão presente nas seguintes provas
Exogenous World Farm Prices
The level of world farm prices also affects the scale and level of impact from developing country domestic policy upon resource degradation or renewal in DRAs. With marked fluctuations, world prices for most main crops have been falling in real terms for 40 years. Farmers anticipating continued price declines will shift toward adding value by farm production now at the cost of production later. Accelerated resource degradation results. This price-induced shift toward resource degradation is attributable to exogenous factors.
In its analysis of the impact of world farm prices upon degradation of resources in DRAs, the text states that:
Item 2 - domestic policies have no impact whatsoever on resource degradation or renewal;
Provas
Questão presente nas seguintes provas
Many authors attribute much resource degradation in developing rural areas (DRAs) to market failure and policy failure – failure, in each case, to “reflect environmental values.” Other authors attribute much resource degradation to incorrect domestic policies affecting relative prices. This chapter suggests, instead, that most resource degradation in DRAs responds to the success of domestic markets and policies. They succeed in communicating to rationally maximizing agents (households, firms, managers of common property) that changes in prices (especially real interest rates) and in technical options increasingly favor accelerated resource degradation.
According to the text, much of natural resource degradation in developing rural areas (DRAs) has been (or can be) attributed to:
Item 3 - the very success of domestic markets and policies in communicating changes in prices and in technical options;
Provas
Questão presente nas seguintes provas
Exogenous Technical Progress
In the long run, at least in the more vibrant regions of developing country farming technology probably affects farm-level incentives more than prices do. For example, the productivity levels of land, labor, fertilizer, and irrigation in rice or wheat production in the Indian Punjab have probably changed faster over the 1964-1992 period than their respective input/output price ratios. Farmers’ selection from an available set of generated production technologies determines whether their response to the joint pressures of population and changing prices will be resource-enhancing or resource-degrading.
In the discussion of the impact of farming technology on resource use in developing countries rural areas the text
Item 3 - implies that farmers have the appropriate set of technologies to choose from;
Provas
Questão presente nas seguintes provas
Um monopolista atende a dois mercados distintos. A função q1 = 32 – 0,4 p1 representa a demanda do primeiro e a função q2 = 18 – 0,1 p2, a demanda do segundo. A função custo da firma é dada por CT = 50 + 40q. O monopolista pode discriminar entre os dois mercados. Julgue o item:
Item 1 - A quantidade de equilíbrio é mais elevada no primeiro mercado.
Provas
Questão presente nas seguintes provas
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