投资股票基金，有人赚钱就一定有人亏钱吗？｜投资小知识

Group 1 - The core viewpoint is that investing in stocks and funds is fundamentally different from gambling, as it is a positive-sum game where all participants can potentially profit [3][4]. - The long-term profit growth rate of A-share listed companies is around 10% annually, allowing all participants to enjoy this return if they buy undervalued stocks [4]. Group 2 - The article emphasizes the importance of buying stocks when they are undervalued to maximize potential profits for all investors [4].