After a fifth straight month of gains in July (.SPX), Wall Street stock appeared to pull back on Tuesday as corporate earnings plummeted this week and poor manufacturing data from around the world created a sharper backdrop. The low productivity of factories in China has again become apparent and highlighted the difficulties in recovery, which may be the main reason for the slowdown in industrial activity worldwide. With markets growing impatient with the disappointing economic stimulus plans seen in Beijing so far, Chinese equities fell (.CSI300), counteracting a broader rally in Asian...