Jeff Bezos has been ranked the world’s third richest person while critics say Amazon has dodged billions in tax, and campaigners are pressing governments to tighten international rules. Developing countries have launched negotiations for a global tax treaty through the United Nations to let multinationals be taxed where they generate real activity, proponents say. Activist groups and petitioners are urging the UK government and others not to cave to billionaire interests and to back stronger tax measures. Commenters point to corporate tax avoidance schemes and cite recent moves by Bezos such as a filing to sell up to $4.1 billion in Amazon stock. The debate is unfolding alongside broader scrutiny of tech billionaires’ efforts to build low-tax private jurisdictions like Próspera, which campaigners describe as a bid for greater autonomy and lower taxes.