Current Attempt in Progress

The three economic factors that affect the shape of the yield curve are:

the real rate of interest, the expected rate of inflation, and marketability.

the real rate of interest, the expected rate of inflation, and interest rate risk.

the nominal rate of interest, the expected rate of inflation, and default risk.

the real rate of interest, the nominal rate of interest, and currency risk.

Which principle dictates that efforts $($expenses$)$ be recorded with accomplishments $($revenues$)?$

Historical cost principle.

Revenue recognition principle.

Periodicity principle.

Expense recognition principle.