Need help with 11-14

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As the marginal propensity to consume (mpc) increases, the multiplier remains the same. increases. decreases. as the marginal propensity to save (mps) increases, the multiplier decreases. increases. remains the same. if the marginal propensity to consume is 0.30, what is the multiplier, assuming there are no taxes or imports? round to the tenths place. given the multiplier that you calculated, by how much will gross domestic product (gdp) increase when there is a $1,000 increase in government spending? $

When cell phones were first entering the market, they were relatively large and reception was undependable. all cell phones were essentially the same. but as the technology developed, many competitors entered, introducing features unique to their phones. today, cell phones are only a small fraction of the size and weight of their predecessors. consumers can buy cell phones with color screens, cameras, internet access, daily planners, or voice activation (and any combination of these features). the history of the cell phone demonstrates what marketing trend?

In the fall of 2008, aig, the largest insurance company in the world at the time, was at risk of defaulting due to the severity of the global financial crisis. as a result, the u. s. government stepped in to support aig with large capital injections and an ownership stake. how would this affect, if at all, the yield and risk premium on aig corporate debt?