The author is former vice president of Costa Rica and Secretary-General of the United Nations Conference on Trade and Development

Second chances are not common in this world, but one is arriving now. The scope and scale of government support for businesses and workers during the Covid-19 crisis of the last 18 months have swept aside entrenched policy dogmas.

This has generated political momentum across advanced and developing economies to change the balance of power between the state and the market, and thereby foster a new consensus for achieving more equitable and sustainable growth. By building on this impetus, we can avoid repeating the policy mistakes of recent decades.

The Covid-19 pandemic has tested governments’ responsiveness and the resilience of economic systems everywhere, and changed social behavior and personal habits in previously unthinkable ways.

There has also been cause for genuine hope amid the suffering. The dedication of essential workers has been inspiring, while the global scientific community has harnessed the power of collaborative research and public money to develop safe, effective Covid-19 vaccines at breakneck speed.

A global economic recovery began in the second half of 2020, as countries found less draconian ways to manage the pandemic’s health risks and launched vaccination programs. Global growth is expected to reach 5.3 per cent this year, the highest rate in almost a half-century. But the outlook beyond 2021 is uncertain, given disparities in countries’ financial resources, the prospect of new coronavirus variants, and highly uneven vaccination rates.

If we are not careful, these challenges – like governments’ misguided embrace of fiscal austerity after the 2008 global financial crisis – could slow the momentum for meaningful change. Moreover, the pandemic has revealed how unprepared even the wealthiest countries are for unexpected shocks – a fact underscored by extreme weather events this year – and how divided the global economy has become.

A return to the pre-pandemic policy paradigm, which delivered the weakest decade of global growth since 1945, would be a disaster. This is especially true for developing countries, where the economic damage caused by Covid-19 has exceeded that resulting from the global financial crisis a decade ago – in some cases by a considerable margin.

The new US administration’s wide-ranging economic initiatives, if complemented by similar actions in other developed countries, could restore the global economy to a sounder footing.

Moreover, US backing for the recent $650 billion allocation of International Monetary Fund special drawing rights (SDRs), as well as for a global minimum corporate tax rate and a waiver of Covid-19 vaccine-related intellectual-property rights, suggests a possible renewal of multilateralism.

The global economy’s existing asymmetries, and the interlocking economic and environmental crises these have caused, should top the multilateral agenda.