When a son is born, people are offered red eggs, and at the lunar new year gifts of money are given out in red envelopes, while auspicious couplets are written on red paper. Even today, the expression for a bull market in Chinese is "long on red."
瞧，中國人結婚不是要貼大紅雙喜、穿紅戴金，生兒子要請吃紅蛋，而過農曆新年送紅包，貼大紅對聯討喜氣，連現代股市都不忘以「長紅」來表示漲停！