The UK was the first to industrialize during the 18th century industrial revolution. As a trading nation with limited domestic markets and resources, it relies heavily on exports and imports. While the UK pioneered industrialization, by the early 20th century its economy experienced both absolute and relative decline as other nations like the US and Germany industrialized. Recent economic history saw mixed success from Margaret Thatcher's privatization policies in the 1970-80s and engagement with institutions like the IMF. Today the UK has a service-based economy, with sectors like aerospace and banking remaining important.