By "international trends" he is referring to the end of the standoff between the world's two great systems of economic thought, and the changes that this is bringing about. Socialism as an economic system has collapsed, and the market economies springing up from its ashes are yielding big payoffs.
大趨勢指的是世界兩大經濟思潮對抗之後，社會主義失敗，市場經濟結出碩果。