Arsenic Corp. manufactures coffee. The actual quantity of input used for the month of November was 400 kilograms of coffee beans, and the standard quantity of input allowed was 410 kilograms of coffee beans. The standard price per kilogram of coffee beans was $6. Determine the material usage variance of the month of November.

The former chairman of the federal reserve, alan greenspan, used the term "irrational exuberance" in 1996 to describe the high levels of optimism among stock market investors at the time. stock market indexes such as the s& p composite price index were at an all-time high. some commentators believed that the fed should intervene to slow the expansion of the economy. why would central banks want to clamp down when the economy is growing? a. to block the formation of unsustainable speculative asset bubbles. b. to curtail excessive profits in the banking system. c. to prevent inflationary forces from gathering momentum. d. all of the above. e. a and c only.