People often have different expectations. If people have rational expectations, the sacrifice ratio could be much smaller than suggested by the short-run Phillips curve is a false a statement.
- The sacrifice ratio is said to be smaller than suggested by former estimates. The short-run phillips curve will ten to shift downward and the economy would reach low inflation very fast.
Rational expectations  is known to be an economic theory. It simply states that when making decisions, individual agents will capitalize their decisions on the information that is best and available and they also learn from past trends.
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It will take 2 years because eaxh year you get 4% of the $2500 which means $100 a year
        
             
        
        
        
Answer: the correct answer is letter D. the nominal interest rate is the stated interest rate whereas the real interest rate is the nominal interest rate minus the inflation rate.
Explanation: in financial maths when you speak about "real" rates you should consider the inflation impact. 
 
        
                    
             
        
        
        
Answer:Graphically show & explain how carpooling may eliminate the shortage.
Explanation: