An advantage of fiscal deficits is that the non-government sector becomes immediately wealthier because the sovereign government issues debt to private wealth holders.
Answer: False
The answer is False.
The fundamental principles that arise in a fiat monetary system are as follows.
National governments have cash operating accounts with their central bank. The specific arrangements vary by country but the principle remains the same. When the government spends it debits these accounts and credits various bank accounts within the commercial banking system. Deposits thus show up in a number of commercial banks as a reflection of the spending. It may issue a cheque and post it to someone in the private sector whereupon that person will deposit the cheque at their bank. It is the same effect as if it had have all been done electronically.
All federal spending happens like this. You will note that:
Government spending adds net financial assets denominated in the government's currency to the non-government sector. If that spending is not matched by taxation revenue, then net financial wealth rises in the non-government sector.
So deficits add to non-government sector financial wealth through the spending.
All that bond sales do is provide a risk-free, interest-bearing security (government debt) to the wealth portfolio of the non-government sector.
In other words, the bond sale just offers portfolio choice for the non-government sector rather than changing its net holding of financial assets.
So the debt-issuance does not increase the net financial assets that are held by the non-government sector $-for-$.
Later, as interest payments are made on the outstanding debt, further increments in net financial assets will occur. But the question asks about the immediate impact.
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