Foram encontradas 395 questões.
It is policies in developed countries that have produced the bigger, more pervasive, more durable, and worsening “price twists” against developing countries’ farm prices, thereby encouraging developing country farmers to discount the future capacity of their resources to sustain output. Farm policy in the European Community, and for some products in the United States (sugar, tobacco, cotton) and Japan (rice), lowers the trend line of world farm output prices by (1) stimulating overproduction; (2) subsidizing huge stock overhangs that depress prices further, and arguably by subsidizing exports as well; and (3) greatly stimulating developed country farmers’ demand for research, which generates a pipeline of technical progress that leads to further incentives to overproduce. Finally, developing country governments have often ill-advisedly intensified this price decline via trade regimes, parastatal monopolies of farm inputs or monopsonies of farm outputs, and so forth.
In its evaluation of the impact of developed country policies on resource degradation in developing country rural areas, the text
Item 0 - exempts the former of any guilt;
Provas
Questão presente nas seguintes provas
Avalie o item abaixo, relativas ao modelo clássico (também chamado neoclássico) e ao modelo IS-LM:
Item 3 - Uma curva LM vertical implica que a política fiscal é ineficiente e, portanto, que a curva de oferta agregada é igualmente vertical.
Provas
Questão presente nas seguintes provas
Assinale certo ou errado:
Item 1 - O plano tangente à superfície !$ z=-{\large{x^3 \over 3}}+{\large{y^3 \over 3}}+x^2 \cdot y-y^2-3 \cdot y !$ no ponto !$ (2,1,- \large{7 \over 3}) !$ é paralelo ao plano !$ z=0 !$.
Provas
Questão presente nas seguintes provas
Considere o modelo de regressão linear múltipla para dados seccionais
!$ y_i=\beta_0+\beta_1+x_{1i}+\beta_2x_{2i}+L+\beta_kx_{ki}+u_i !$, !$ i=1,K,n !$.
É correto afirmar que:
Item 1 - a hipótese que !$ Var(u_i \mid x_{1i}, x_{2i}, K , x_{ki})=σ^2 !$, !$ i=1, k, n !$ não é necessária para que os estimadores de mínimos quadrados sejam consistentes;
Provas
Questão presente nas seguintes provas
Considere o seguinte modelo IS-LM para uma economia fechada:
| C = 200 + 0,8 Yd | ||
| I = 75 – 0,25 i + 0,11 Y | em que: | |
| T = 0,20 Y | C = consumo agregado | T = tributação |
| G = 200 | Yd = renda disponível | G = gasto do governo |
| Md = 0,6Y – 0,2 i | I = investimento | Md = demanda de moeda |
| Ms = 100 | i = taxa de juros | Ms = oferta real de moeda |
Com base neste modelo, avalie o item:
Item 1 - O multiplicador do gasto autônomo é igual a 1.
Provas
Questão presente nas seguintes provas
Sobre a inserção internacional do Brasil na década de 1990 é correto dizer que:
Item 3 - apesar do surgimento de déficit na balança comercial, a participação das exportações brasileiras no total das exportações mundiais cresceu ao longo da década;
Provas
Questão presente nas seguintes provas
Sejam: !$ X_1 !$, !$ X_2 !$, ..., !$ X_n !$ variáveis aleatórias independentes e normalmente distribuídas com média !$ \mu !$ e variância !$ σ^2 !$; !$ \overline{X}=n^{-1} \sum\limits^{n}_{i=1}X_i !$; !$ Z=\sum\limits^{n}_{i=1}Y^2_i !$, em que !$ Y_i=σ^{-1}(X- \mu) !$. É correto afirmar que:
Item 4 - a variável aleatória !$ W_i={\large{Y_i \over \sqrt{\large{Z \over n}}}} !$ possui distribuição F com !$ n_1 !$ e !$ n_2 !$ graus de liberdade, em que !$ n_1=1 !$ e !$ n_2=2n !$.
Provas
Questão presente nas seguintes provas
Public policy by the principal developed country (DC) governments since about 1979 has accepted, and probably caused, this interest upsurge. These governments, reacting against and inappropriately Keynesian response to the first (1973) oil price shock, decided to squeeze out inflation (and inflationary expectations) after the second (1978) shock. Around 1978-1984, this squeeze was attempted mainly by restraining the growth of the money supply, which led to increases in the nominal rate of interest. At the same time, the United States public sector deficits (and perhaps those in some other developed countries) added market-based upward pressure on interest rates. Rates charged by leading public institutions to borrowing governments – even on old loans – since the late 1970s have responded quickly to market conditions. There is no reason to doubt that these changes are passed on to final borrowers, especially in view of pressures by donors upon developing country governments to phase out interest rate subsidies.
After the second oil shock, principal developed country governments decided to fight inflation. According to the text, this was accomplished through
Item 1 - a squeeze in the growth of money supply;
Provas
Questão presente nas seguintes provas
A respeito dos conjuntos A, B, C e D definidos abaixo, no !$ \Re !$ assinale certo ou errado:
Item 0 - !$ A \cup B=B \cup C !$ em que, !$ A=\{x;\left\vert x \right\vert < 3\} !$
Provas
Questão presente nas seguintes provas
High (and Exogenously Set) Rates of Interest
It will now be shown that DRA resource depletion is in significant part caused by developed country policies that raise real long-term interest rates and that it could be moderated or reversed if these policies were. This interest rate argument asserts that rates of interest in the 1980s were excessive in the sense that they increased resource degradation by worsening the structures of investment, production, consumption, and resource management, and that these rates should therefore be reduced.
In May 1991 the World Bank summarized the position: “In the prosperous 1950s and 1960s, real long-term prime interest rates for prime borrowers stood at some 1 to 1.5 percent and short-term rates were even lower”. After an aberrant period of negative real rates during the rapid inflation of 1973-1977, “real long-term prime interest rates have hovered between 4 and 5 percent, and they appear set to remain at these levels or to climb even higher”; they have fully met that prediction in the 1990s. Such high rates appear to be historically without precedent.
In its discussion of the role of interest rates on resource depletion, the text asserts that
Item 2 - long-term rates for prime borrowers in the fifties and sixties were higher than the short-term rates for the same category of borrowers (World Bank quotation);
Provas
Questão presente nas seguintes provas
Cadernos
Caderno Container