Brian, thank you for your in-depth explanations here. I feel like I'm finally filling the most crucial gaps in my understanding, even if every answer leads to a new question.
And regarding your IOR sentence above ... the bank does not deposit those reserves. Those reserves have already been credited by the Fed. And yes, the Fed is paying these banks interest on their reserves. In fact, they do not pay interest for just excess reserves (and just reserves on deposit with the Fed) ... they pay interest on all reserves. This includes required reserves as well as vault reserves.
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Maybe I am not the right person to ask as I have repeatedly written in my Financial Sense articles that I think this is part of the Fed's plan to stealthily recapitalize the banking system. It takes time, but it is time they have. A long, slow, painful process that benefits the banks.
The interest payments are simply additional reserves credits issued by the Fed.
Wow...the "interest on all reserves" part sounds extraordinarily shady, even by the Fed's standards. It essentially sounds like free money for banks based on how much money they already hold in reserves, which grossly distorts the meaning and purpose of the term "interest."
However, I'm now quite confused about something: The fact that interest is paid on all reserves - not just excess reserves or those on deposit with the Fed - seems to defeat the purpose of IOR, because if banks get the "interest" payments from the Fed regardless of how they're using their reserves, doesn't that limit the effectiveness of IOR in regulating interest rates and lending? After all, "interest no matter what, as long as you don't bleed reserves" seems like a poor way of incentivizing any particular lending behavior. Clearly I'm misunderstanding something here...fill me in?
You are really asking what happened on Day 1, right? To get a fiat currency central bank managed monetary system jump-started, you need to buy an initial round of assets. These assets traditionally fall into two categories ... sovereign debt and Gold. This is how the Federal Reserve system got started. The quality of assets are important because these are the securities that back the currency and money supply. This is why I harp on the declining composition of the Fed balance sheet ... both in terms of asset quality and maturity (asset risk and interest rate risk). Meanwhile, the financial media seems to be fixated on only the size of the balance sheet. Both are important. Agency debt and Agency MBSs, unfortunately, have become a core holding of our central bank. Meanwhile, average duration continues to rise and is at unprecedented levels.
From the perspective of a fiat money system propped up by legal tender laws and petrodollar hegemony, why is the composition of the Fed's balance sheet so important? Granted, the Fed needs to possess valuable assets instead of junk if it plans on extinguishing money by selling its assets back on the open market, but is there a reason related to the value of the dollar that I'm not seeing?
After all, it's not like the dollar is backed by gold in the sense of being redeemable for any fixed amount. That bygone policy previously gave the dollar value as a proxy for gold (which also led to expectations that it wouldn't be inflated). If FRN's were redeemable on demand at the Fed for a fixed quantity of some asset on the Fed's balance sheet (let's handwave the vague meaning of "quantity" for assets that aren't commodities like gold

), then the composition of those assets would obviously contribute to the value of the dollar, but as it stands, I'm having trouble seeing any real connection. In the absence of any kind of redeemability, the "backing" of the currency by the Fed's balance sheet just seems way too abstract (and disconnected from what the currency can actually be exchanged for) to matter, in and of itself.
Then again, taking the long view that the dollar is doomed to fail in the first place, I suppose the Fed's balance sheet composition might matter from the standpoint of switching over to another currency system. If another state-sponsored gold standard were ever implemented (which could be a terrible idea for a number of reasons), it would certainly matter whether the Fed's reserves at the end of this current system were composed of gold or toxic MBS's (and depending on the situation, I might be liable to value Treasuries closer to the latter

). The same might apply to any kind of switch to a regional or global fiat currency (God forbid), since the Fed's balance sheet could play a role in determining exchange rates and/or the US's stake in such a currency.
Over long periods of time, the Fed engages in asset purchases (at considerably lower levels than that of post September 2008). These asset purchases increase reserves in the banking system (liability side of the balance sheet) and obviously add to the asset side of the balance sheet. Increased reserves means increased monetary base. Over time, some of these reserves become currency in circulation. These types of systems rely on continued inflation (even if it is modest) to survive. This is how it is achieved. From the period of summer 1996 to summer 2006, the monetary base increased from $443 billion to $804 billion. In 1959 it was $40 billion.
Is it really necessary for the system to be inflationary just to survive though? I understand that the human element virtually guarantees inflation as an inevitable result of fiat money, but in theory, couldn't the Fed technically seek to maintain a stable monetary base under all conditions, thereby mimicking a gold standard (without any new gold mined)?
All systems start from scratch ... but that does not mean that the government did not already have assets to use as backing for the central bank and currency. It did (Gold). The Fed "purchased" them and as such, hold them as asset and liability entries on its balance sheet. The government also issued debt which the central bank purchased.
Brian
That cleared up a LOT for me. Thanks.
