I have read (e.g., http://en.wikipedia.org/wiki/Federal_Reserve_System) that the Federal Reserve pays a fixed portion of its profits to the holders of its “stock” and the rest of its profit is handed to the U.S. Treasury.
How is this profit calculated? How can the Fed even be said to have made a profit? After all, all money is Fed liabilities, which, if they return to the Fed are therefore canceled out and disappear into nothingness.
Suppose, for example, the Fed purchases an asset for $100. The Fed purchases it by issuing new liabilities. So its liabilities (thus the money supply) increase by $100 and its assets increase by $100. If it were to sell the asset for $100, then its liabilities would decrease by $100 and its assets would decrease by $100, and its balance sheet would be back where it was.
Now, if after purchasing it, the market price of the asset goes up to $150, then (all else being equal) the Fed’s assets have increased by $50 above its liabilities. This might be called “profit”. But then how is the ‘profit’ given to the ‘stock’ holders and the U.S. Treasury? If it sold the asset (for $150), all that would happen is that its liabilities and assets would both decrease by $150 (and thus its assets would still exceed its liabilities by $50).
The only thing I can think of is if the Fed simply creates new liabilities of $50 and hands them out as its “profits”, without receiving any asset in exchange? Is that what happens? At the end of the year if its liabilities are less than its assets, does it just issue new liabilities (increasing the money supply) up to its assets to make the two equal (or only part of the difference)? If so, then what about when the value of the assets fall, and its assets are less than the liabilities? How would it make up the difference then?