There is no alternative (shortened as TINA) was a slogan which Margaret Thatcher, the conservative British Prime Minister used often. In economics, politics, and political economy, it has come to mean that "there is no alternative" to economic liberalism, that free markets, free trade, and capitalist globalization are the best way for modern societies to develop.
The phrase may be traced to its emphatic use by nineteenth-century classical liberal thinker Herbert Spencer.[1]
In the early nineties, Francis Fukuyama wrote a book named The End of History and the Last Man, which in a similar strain argued that liberal democracy had triumphed over communism and the historical struggle between political systems was over (though there could still be future events).
According to TINA, economic liberalism is the only valid remaining ideology.