Between 1929 and 1933, nominal interest rates ___, and real interest rates ___

Changes in ________ do not affect the level of aggregate supply in the long run

A) the number of workers in the economy B) the price level C) the amount of accumulated capital equipment D) technology

Which of the following represents the appropriability of research?

A) the protection given to new products by the law B) how R&D spending translates into new ideas C) the extent to which firms benefit from the results of their own R&D spending D) the rate of technological progress E) both B and C