The primary reason for the establishment of the G20 was to create a broader, more representative forum to manage global financial stability in the wake of the major financial crises of the late 1990s, especially the Asian financial crisis, and to give emerging economies a stronger voice in international economic decision‑making.

Quick Scoop: Why the G20 Was Created

Think of the G20 as a “crisis-born” club: it was set up in 1999 after a series of financial shocks showed that the old system (mainly the G7 rich countries) was too narrow to keep the global economy stable.

Core Purpose at Birth

  • To respond to the late‑1990s financial crises (Mexican peso crisis, 1997 Asian financial crisis, Russian crisis, LTCM collapse) that rattled emerging markets and advanced economies alike.
  • To improve coordination on international economic and financial policy among “systemically important” economies, not just the traditional G7.
  • To include major emerging economies (like China, India, Brazil, South Africa) whose economic weight was growing but whose voice in Bretton Woods institutions and G7‑type forums was limited.

In short, the primary reason was better global financial governance : a more inclusive table to prevent and manage crises in an increasingly interconnected world economy.

How Insiders Describe Its Origin

  • Canadian PM Paul Martin and US Treasury Secretary Lawrence Summers pushed the idea after the 1990s crises, arguing the G7 was “not the world” and needed to be supplemented by a broader group.
  • Official G20 and government briefs explicitly state it was created in 1999 “in response to the financial crises in the late 1990s” and the rising influence (but under‑representation) of emerging markets.

In essence: global problems needed global solutions, and that meant more voices at the table, especially from emerging economies.

What It Has Evolved To Do

While the founding motive was financial stability, the G20 has since expanded to:

  • Coordinate responses to major shocks like the 2008 global financial crisis, using joint stimulus, regulatory reform, and crisis‑management measures.
  • Discuss broader economic issues such as sustainable growth, development, trade, climate, and inequality, building on its role as a central platform for economic cooperation.

But all of this still rests on that original logic: a forum of major economies—advanced and emerging—designed primarily to safeguard global financial and economic stability in a globalized world.

TL;DR: The G20 was established mainly to create an inclusive, crisis‑response forum for global financial stability after the late‑1990s financial crises exposed the limits of the G7‑centric system.

Information gathered from public forums or data available on the internet and portrayed here.