Cul de las siguientes afirmaciones sobre los dficits presupuestarios es falsa? Se financian con ingresos fiscales o nueva deuda. Representan la diferencia entre los ingresos fiscales y los gastos del gobierno. Suelen ocurrir cuando se utiliza una poltica fiscal contractiva. Pueden afectar el RGDP a largo plazo..

1. It is known that for independent Poisson distributed random variables X1 Poisson(1) and X2
Poisson(2) it holds that X1 + X2 Poisson(1 + 2). Show that if Xi Poisson(i), i = 1, 2, . . . , k are
independent then the conditional distribution of X1 given X1 + X2 + . . .Xk is Binomial and
determine the parameters of this Binomial distribution. ii) Suppose that the X and Y are
components of continuous random vector with a density fX,Y (x, y) = cxy2, 0 < x < y, 0 < y < 2
(and zero else). Here c is a normalizing constant. a) Show that c = 5 16 . b) Find the marginal
density fX(x) and FX(x). c) Find the marginal density fY (y) and FY (y). d) Find the conditional
density fY |X(y|x). e) Find the conditional expected value a(x) = E(Y |X = x). Make sure that you
show your working and do not forget to always specify the support of the respective distribution