The stock market is said to be a leading indicator for gdp growth. because the stock market prices the expectations of future earnings, a bullish market may predict future economic growth and vice versa. let yt be gdp growth and xt be sp500 returns. (both series collected at the quarterly frequency as in the previous exercise). run ols for the following models:

a. yt=î²0+î²1xt+î¼t (contemporaneous correlation)
b. yt=î²0+axt-1+î¼t (one-quarter leading indicator)
c. yt= î²o+î²1xt-1+î²2xt-2+ î²3xt-3+ î²4xt-4+î¼t(four quarter leading indicator)
d. yt= î²o+î²1xt-1+î²2xt-2+ î²3xt-3+ î²4xt-4+î²5yt-1 +î¼t (leading indicator with gdp inertia)

for each model, assess the r-squared and the adjusted r-squared. which model do vou prefer?

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.