World population visual timeline: the top 15 countries by population. According to UN estimates, the global population could surpass 11 billion by 2100. Historical country data from before 2020 is shown based on today’s geographical borders. | TRT World

PGMN anchor Orion Perez Dumdum discusses years of research comparing countries across global economic and governance indicators. He explains that in rankings such as GDP per capita, the Human Development Index, ease of doing business, and the Corruption Perceptions Index, most of the top-performing countries operate under parliamentary systems, while many of the lowest-performing countries are presidential or semi-presidential. Orion points out that the pattern appears consistently across multip