In a 32-bit program an address is a 32-bit value. In a 64-bit program an address is a 64-bit value (although only the low 48 bits are used). In a linear address space, the possible address space is 4GB. One note is that many hardware items are memory mapped to addresses.
However, this will not totally solve the Fedâs problem. Even when it was paying the banks 0.25% interest on reserves, the effective federal funds rate (the rate at which reserves at the Fed were actually being traded) was below 0.25%. This is why the Fed adopted a range for the federal funds rate of 0-0.25%.
The prime rate is influenced (but not dictated) by the Federal Funds rate, which is set by the Federal Reserve. The Federal Funds rate is the rate at which banks can borrow from each other or the Federal Reserve in order to meet their reserve requirements. The higher this rate is, the higher a bank's prime rate usually is.