Foram encontradas 400 questões.
Classifique a afirmativa abaixo como certo ou errado:
Item 2 - O aumento do preço dos produtos importados vendidos no país eleva o deflator implícito de preços do PIB deste país.
Provas
Questão presente nas seguintes provas
Classifique a afirmativa abaixo como certo ou errado:
Item 2 - A falta de sensibilidade do consumo em relação à renda corrente pode ser causada por restrições de liquidez que impedem que os indivíduos peguem emprestado o suficiente para manter seu perfil regular de consumo.
Provas
Questão presente nas seguintes provas
Uma firma monopolista atua num mercado no qual a demanda pelo produto pode ser dividida em dois mercados com características distintas, que podem ser resumidas pelo comportamento das respectivas demandas: !$ q_1^d = 24 - p_1 !$ e !$ q_2^d = 24 - 2p_2 !$. A tecnologia disponível para o monopolista apresenta custo marginal constante e igual a 6.
É possível afirmar que:
Item 2 -Com a discriminação de preços, a perda de eficiência no mercado 1, cuja demanda é caracterizada pela função !$ d_1^d = 24 - p_1 !$, será de 40,5.
Provas
Questão presente nas seguintes provas
Based on your interpretation of the following text, determine whether the statement is right or wrong.
Text 1
(From The Economist print edition, March 31st-April 6th 2012)
Excerpts from:
The World Bank
Hats off to Ngozi
A golden opportunity for the rest of the world to show Barack Obama the meaning of meritocracy
Mar 31st 2012 | from the print edition
WHEN economists from the World Bank visit poor countries to dispense cash and advice, they routinely tell governments to reject cronyism and fill each important job with the best candidate available. It is good advice. The World Bank should take it. In appointing its next president, the bank’s board should reject the nominee of its most influential shareholder, America, and pick Nigeria’s Ngozi Okonjo-Iweala.
The World Bank is the world’s premier development institution. Its boss needs experience in government, in economics and in finance (it is a bank, after all). He or she should have a broad record in development, too. Ms Okonjo-Iweala has all these attributes, and Colombia’s José Antonio Ocampo has a couple. By contrast Jim Yong Kim, the American publichealth professor whom Barack Obama wants to impose on the bank, has at most one.
Ms Okonjo-Iweala is in her second stint as Nigeria’s finance minister. She has not broken Nigeria’s culture of corruption—an Augean task—but she has sobered up its public finances and injected a measure of transparency.
She led the Paris Club negotiations to reschedule her country’s debt and earned rave reviews as managing director of the World Bank in 2007-11. Hers is the CV of a formidable public economist.
Mr Ocampo was also finance minister, though his time in office, 1996-98, saw the budget deficit balloon. He ran the mildly statist UN Economic Commission for Latin America and the Caribbean. His is the CV of the international bureaucrat.
Mr Kim, the head of a university in New England, has done a lot of good things in his life, but the closest he has come to running a global body was as head of HIV/AIDS at the World Health Organisation—not a post requiring tough choices between, say, infrastructure, health and education. He pioneered trials of aid programmes before they became fashionable and set up an outfit called Partners in Health which does fine work in Haiti and Peru. But this is a charity, not a development bank. Had Mr Obama not nominated him, he would be on no one’s shortlist to lead the World Bank. (Indeed he is a far worse example of Western arrogance than Christine Lagarde, whom the Europeans shoehorned into the IMF job last year: the French finance minister plainly had the CV for the job.)
According to the text
Item 4 - The World Bank needs, above all, someone with experience in finance as its president.
Provas
Questão presente nas seguintes provas
Based on your interpretation of the texts that follow, determine if each statement is true or false.
Text 2
(From The Economist print edition April 21st-27th 2012)
Excerpts from:
France’s presidential election
The anti-Sarkozy vote
All the signs point to a win for the Socialist François Hollande, chiefly because he is the anti-Sarkozy candidate
Apr 21st 2012 | DONZY | from the print edition
FAR from the giant rallies and big-screen showmanship of the final days of a presidential campaign, the sleepy town of Donzy in Burgundy feels untouched by politics. The talk in the bars is of the local fête and fishing. Only one campaign poster, for a fringe anti-capitalist, has been pasted to the municipal noticeboard. Yet this bellwether town is a pointer to how the French will vote in the election on April 22nd and May 6th: at every poll since 1981, it has gone for the winner.
In 1981 Donzy backed François Mitterrand, a Socialist. In 2007 it swung behind Nicolas Sarkozy, on the Gaullist right. This time the little town, encircled by wheat fields and home to factories making plastic straws and umbrellas, looks likely to back François Hollande, the Socialist. “My bet is that Donzy will vote Hollande,” says Jean-Paul Jacob, the (independent) centre-right mayor. This is not out of enthusiasm for the man, as “people find him cold, there’s no fervour about him.” Rather, the mayor thinks, it reflects disappointment with Mr Sarkozy. “His personality”, he says wryly, “doesn’t leave people indifferent.”
(...)
It is perhaps natural that the French should want change. The Gaullists, under Mr Sarkozy and his predecessor, Jacques Chirac, have held the presidency since 1995. Right across Europe in the euro-zone crisis, incumbents have been unseated by disgruntled voters. The French are fearful and restless and want something different. But the prospect of Mr Sarkozy’s defeat is still a remarkable one, in many ways. Unlike Mr Giscard d’Estaing, who had to run against Mr Chirac as well as facing Mitterrand, he has no centre-right rival. And he can reasonably claim to be the sort of authoritative leader to whom voters might turn in a crisis. Indeed, polls suggest the French rate Mr Sarkozy more highly than Mr Hollande for most traits to do with leadership. He scores better for having “the authority of a head of state” (54%, next to 23% for Mr Holland
Provas
Questão presente nas seguintes provas
Considere !$ \beta \{v_1,...,v_m\} !$ um conjunto de vetores de !$ R^n !$ . Julgue a seguinte afirmativa:
Item 3 - Se todos os vetores do conjunto !$ \beta !$ forem linearmente independentes, então o núcleo da matriz, cujas colunas são os elementos de !$ \beta !$ , é o subespaço nulo.
Provas
Questão presente nas seguintes provas
Classifique a afirmativa abaixo como certo ou errado:
Item 1 - Em uma economia aberta, se o investimento é superior à poupança doméstica, o saldo total do balanço de pagamentos é necessariamente negativo.
Provas
Questão presente nas seguintes provas
Considere X ,Y e Z variáveis aleatórias com distribuição conjunta caracterizada por !$ f_{X,Y,Z} (x,y,z) !$ e distribuições marginais caracterizadas por !$ f_X (x) , f_Y ( y) \ e \ f_Z (z) !$ . Sejam a, b, c e d constantes.
Julgue a seguinte afirmativa:
Item 0 - O resultado !$ g(E[X]) = E[g(X)] !$ se verifica para !$ g(X) = X^2 !$.
Provas
Questão presente nas seguintes provas
Usando uma base de dados que contém informação sobre 437 firmas, estimamos uma função de produção Cobb-Douglas:
!$ \hat{Y_i} = 0,99 + 0,64L_i + 0,45K_i !$
(0,003) (0,035) (0,023)
Em que !$ \hat{Y_i} !$ denota o produto (em logaritmo), !$ L_i !$ representa o insumo trabalho (em logaritmo) e !$ K_i !$ , o insumo capital (em logaritmo).
Os números entre parênteses representam o erro-padrão associado a cada coeficiente.
Baseado no resultado acima, julgue a afirmativa:
Item 2 - Com base nas informações acima, podemos testar a hipótese de retornos constantes de escala, isto é, a hipótese nula de que !$ \beta _L + \beta_K = 1 !$.
Provas
Questão presente nas seguintes provas
A abertura comercial e financeira, a partir da década de 1990, teve os seguintes impactos sobre a economia brasileira:
Item 0 - Ela foi, juntamente com a valorização cambial do real, um dos pontos fundamentais na estratégia de combate à inflação do Plano Real.
Provas
Questão presente nas seguintes provas
Cadernos
Caderno Container