What a bond is
When the UK government borrows, it sells gilts. A gilt is an IOU: investors lend the government money now, receive interest, and get repaid when the bond matures. Those gilts are then traded. If demand falls, the price falls and the yield rises. A higher yield means the government pays more to borrow next time.
Price down
Investors are less willing to hold the debt at the old price.
Yield up
The interest return needed to attract buyers rises.
Debt cost up
More future tax revenue goes to debt interest rather than services.
Politics narrows
Governments become more cautious because markets can punish incoherence.
The quote
Burnham's bond market phrase was treated by opponents as if he had said Britain could ignore lenders. That was not the full argument. In his Manchesterism article he tied market weakness to deindustrialisation, privatisation, austerity and Brexit, then argued that long term investment and clearer national direction would put Britain in a better position with markets.
"in hock to the bond markets"Andy Burnham, New Statesman interview, later revisited in Guardian reporting
LabourList captured the actual debate well: some on the left want to confront market power, some are resigned to it, and the real question is which alternatives are credible.
What markets punish
Markets punish incoherence faster than ambition. The Truss mini budget combined large unfunded tax cuts with institutional conflict and no credible scoring. That is not the same as borrowing for productive assets with a clear timetable, revenue stream and OBR scoring.
The programme approach
The programme does not say ignore gilts. It says use them properly. Borrowing to fund current spending without a revenue plan is dangerous. Borrowing to build rail, grid, energy, housing and courts is different because it creates productive capacity, lower future costs and assets with long term returns.
The fiscal rule
OBR scoring is non negotiable. Infrastructure bonds are attached to productive assets. Current spending discipline remains. The objective is not to frighten markets. It is to give them something credible to fund: a country that builds again.
Read the financing section