The Iron Lady’s revolt against the post-war consensus
In 1979, Margaret Thatcher inherited a Britain many called ungovernable. Her response was not just a change in policy, but a systematic reversal of decades of political agreement, replacing the welfare state's reach with the decisive power of the free market.
Thatcherism emerged as a rejection of the 'post-war consensus'—a period where major British parties largely agreed on Keynesian economics, nationalisation, and a robust welfare state. Driven by a desire to curb inflation and reduce the influence of the labour movement, Thatcher’s administration introduced supply-side economics. This involved lowering taxes, privatising national industries, and implementing monetarism—a theory prioritising the control of the money supply to manage inflation, a concept famously championed by Friedrich Hayek.
The movement was characterised by a tension between libertarian economic ideals and a highly centralised, almost 'Leninist' style of governance. While proponents saw a movement toward individual responsibility and 'Victorian values' of self-help, critics like Murray Rothbard argued the rhetoric of a free market merely masked a statist agenda. This was evident in the government's approach to trade unions, most notably during the 1984–1985 National Union of Mineworkers strike, which resulted in a significant shift in power from labour to capital.
Despite the radical economic shifts, Thatcherism was not a total dismantling of the British state. The administration notably left the National Health Service (NHS) intact, with Thatcher promising in 1982 that it remained 'safe in our particular hands.' Ultimately, the era's legacy was cemented by its endurance; even 'New Labour' under Tony Blair in the 1990s and 2000s accepted many of the core reforms, such as deregulation and the privatisation of key industries, viewing them as an inevitable consequence of social and economic change.
Source: Thatcherism
