Not making cuts to Universal Credit and Personal Independent Payments means they will (under current thinking) have to be made elsewhere or taxes raised. I think the MPs do need to be made aware of this as they seem to be disregarding reality.
I don't think that MPs are aware of reality, but they seem to be stumbling towards an inkling of it, even though it contradicts the apparently ruling theory that taxation funds state spending (subscribed to by most commentators and many economists, though the latter might just be pandering to folk views of how the economy works).
I asked Chatgtp (AI) what would happen if the state no longer issued money into the economy but depended on tax revenue to fund its spending.
Its response:
Start
If the state stopped creating money and relied solely on taxation to fund public services—under the assumption that all money originates from the state (as per Modern Monetary Theory or MMT)—then the economy would face severe constraints. Here's a breakdown of what would happen:
If all money is created by the state, and the state stops issuing new money, then:
The existing money stock becomes fixed.
Households and businesses can only obtain money that already exists in the system.
Since the state taxes money back to fund itself (instead of issuing more), no net financial assets are added to the private sector.
Over time, this would lead to a shrinking money supply, because:
Taxes would drain money from the economy.
Less money in circulation = falling demand.
Businesses sell less, invest less, and lay off workers.
Falling incomes lead to lower tax receipts, forcing more austerity.
This triggers a negative feedback loop:
Less spending → lower income → lower tax revenue → cut public services → even less spending.
. Public Services Would Shrink
Without the ability to issue currency, the state would be forced to:
Balance the budget like a household.
Cut spending when tax revenue falls, worsening downturns.
Be unable to act counter-cyclically during recessions (i.e., no stimulus).
4. Private Sector Becomes Indebted
To maintain economic activity in the absence of new state money:
The private sector (households and businesses) would need to borrow from banks.
Private debt would rise, creating instability.
This replaces sovereign money (public net financial assets) with private credit (debt).
5. Unsustainable and Destabilizing Over Time
Eventually, the economy would become:
Constrained by liquidity shortages.
Highly unequal, as wealth concentrates in those who already have money.
Vulnerable to financial crises due to excessive private debt and lack of public buffers.
Summary
If all money originates from the state, then new state spending is essential to sustain economic growth and liquidity. Relying only on taxation (which removes money from the economy) without new issuance would:
Reduce money supply over time
Cause deflation and recession
Shrink public services
Increase private debt
Destabilize the economy
End
I challenged its use of the word 'assumption' in relation to MMT
It admitted : MMT is not just a theory; it is a descriptive framework that is empirically correct about how modern fiat monetary systems function—especially for currency-issuing sovereign governments.