Many financial economists believe that the random walk model is a good description of the logarithm of stock prices. it implies that the percentage changes in stock prices are unforecastable. a financial analyst claims to have a new model that makes better predictions than the random walk model. explain how you would examine the analyst's claim that his model is superior.

Which composition of transformations will create a pair of similar, not congruent triangles? a rotation, then a reflectiona translation, then a rotationa reflection, then a translationa rotation, then a dilationmark this and retumsave and exit

Select the correct answers. mila is at a flea market. she has $50 in her wallet. she decides that she will spend $15 on jewelry, $20 on a pair of jeans, $5 on a t-shirt, and $10 on something to eat. she likes a one-of-a-kind t-shirt, but the seller is not ready to sell it for less than $8. she thinks of five ways to deal with this situation. which two choices indicate a trade-off?

Minneapolis federal reserve bank economist edward prescott estimates the elasticity of the u. s. labor supply to be 3. given this elasticity, what would be the impact of funding the social security program with tax increases on the number of hours worked and on the amount of taxes collected to fund social security?