Countries pedalling ‘vaccine nationalism’ will likely hoard vaccines by striking a deal directly with Pharma companies, says a study by non-profit organisation, RAND Europe. According to the study, the nationalistic approach of some governments may hinder other countries’ access to Covid-19 vaccines.This could cost the global economy up to $1.2 trillion a year in gross domestic product (GDP).The countries pedalling vaccine nationalism will likely hoard vaccines by striking a deal directly with pharmaceutical companies. This would result in these countries incurring economic penalties for themselves as well as the wider global population.