Can Andy Burnham Rewire the Treasury to Deliver Faster UK Economic Growth?

Prime Minister Andy Burnham is attempting to reshape one of the most entrenched features of British government: the Treasury’s dominant influence over economic policy. His plan to establish a new economic department within Downing Street, based in Manchester, represents a significant effort to place long-term growth at the centre of policymaking rather than leaving it primarily to the Treasury.

The initiative draws comparisons with Harold Wilson’s creation of the Department of Economic Affairs (DEA) in the 1960s. Wilson’s government sought to develop a longer-term national economic strategy outside the Treasury, reflecting concerns that the department’s traditional focus on taxation, public spending and fiscal discipline could come at the expense of industrial strategy and economic expansion. The experiment ultimately failed to dislodge the Treasury’s institutional power.

A battle over the definition of economic policy

Burnham’s proposal is significant because it is not simply an attempt to create another government department. It represents a different philosophy about how Britain should pursue growth.

The new Manchester-based operation is expected to focus on long-term economic development while giving greater responsibility to regional leaders. Burnham has linked the initiative to a broader programme of devolution, with metro mayors gaining greater influence over areas such as housing, education and planning.

The underlying argument is that economic growth cannot be delivered solely through national budgets and interest-rate policy. Investment in infrastructure, skills, housing and regional development may require decisions that produce benefits over many years rather than immediately improving the government’s fiscal position.

This approach could help address one of Britain’s longstanding economic weaknesses: the uneven distribution of investment and productivity between London and other parts of the country.

Why the Treasury will remain difficult to sideline

The central challenge is that the Treasury still controls the most powerful economic levers in government. Taxation, public expenditure and the management of the government’s finances remain fundamental to determining what policies can actually be implemented.

Consequently, creating a growth-focused unit in No 10 does not automatically transfer power away from the Treasury. The new department could develop ambitious strategies, but those plans would ultimately require funding and political backing.

That creates the possibility of institutional conflict. A growth department may favour substantial investment in infrastructure and regional development, while the Treasury may prioritise fiscal restraint, debt sustainability and the immediate cost of new programmes.

The history of Whitehall suggests that this tension is difficult to resolve simply by changing departmental structures. Wilson’s DEA provides the clearest warning: despite its ambitious mandate, the Treasury eventually regained its dominant position.

Devolution could be the bigger economic experiment

Perhaps the most consequential aspect of Burnham’s strategy is not the creation of a new department but the proposed redistribution of economic powers to the regions.

Greater control over planning, housing, education and investment could allow local governments to design policies around the specific needs of their economies. Manchester and other major city regions have long argued that decisions made in Whitehall do not always reflect local economic conditions.

If successful, this model could create a more decentralised British growth strategy, with regional authorities competing and cooperating to attract investment, improve infrastructure and develop skilled workforces.

However, devolution also carries risks. Local authorities vary significantly in their financial capacity, administrative expertise and economic circumstances. Giving them additional responsibilities without sufficient resources could produce uneven results.

Growth versus fiscal discipline

Burnham’s strategy also comes at a difficult economic moment. UK inflation rose to 2.9% in July, while government borrowing costs remain elevated, creating limited room for large-scale new spending.

That makes the Treasury’s traditional role particularly important. Higher borrowing costs mean that the government cannot simply finance every growth initiative through additional debt without facing pressure from financial markets.

The challenge for Burnham is therefore to demonstrate that his approach can produce higher productivity and sustainable economic growth, rather than simply increasing government expenditure.

Investment in housing, infrastructure and skills can potentially expand the economy’s productive capacity. But the benefits will take time to appear, while the financial costs are immediate.

The political test

The success of Burnham’s experiment will ultimately depend on whether he can give the new growth machinery enough authority to influence government decisions.

If the Manchester-based department becomes a genuine centre of economic strategy, it could gradually change the balance of power within Whitehall. If it becomes primarily an advisory unit without control over major spending and policy decisions, the Treasury is likely to retain its traditional dominance.

There is also a political calculation. Burnham has already embarked on a series of policies designed to address household finances and public services, including measures on energy costs, transport and homelessness.

Those commitments increase the importance of economic growth. Faster growth would make it easier for the government to finance public services and reduce pressure on household incomes without relying exclusively on higher taxation or borrowing.

Burnham’s attempt to reshape the Treasury represents a potentially important turning point in Britain’s economic policymaking. The objective is clear: move the government’s focus from managing scarcity toward creating the conditions for sustained investment, productivity and regional prosperity.

But institutional power in Whitehall is rarely surrendered simply because a new department is created. The Treasury’s influence is rooted in its control of public finances and its central role in every major government spending decision.

The real test, therefore, will not be whether Burnham can create a new economic department. It will be whether he can make long-term growth a binding priority across government, while maintaining the confidence of financial markets and demonstrating that additional investment can generate lasting economic returns.

If he succeeds, Burnham could establish a new model for British economic governance. If he fails, the Treasury may once again emerge as the dominant force shaping Britain’s economic choices.