BUENOS AIRES, Argentina (AP) — The United States and China reached a 90-day ceasefire in a trade dispute that has rattled financial markets and threatened world economic growth. The breakthrough came after a dinner meeting Saturday between President Donald Trump and Chinese leader Xi Jinping at the Group of 20 summit in Buenos Aires.
So I know this is a controversial theory but imo its because the amount money material (aka gold) in the world shrinks absolutely in comparison to all the commodities that are being sold. Governments face a catch-22 during the final upswing of the industrial cycle to devalue their currencies and temporarily preserve commodities at profitable prices (but lower real prices in gold-terms) or to hold-steady and face the prospect of major deflation and massive job loss.