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Technical Analysis

investment strategy
Definition
The study of past price movements and trading volume to forecast future price direction.

Explanation

Technical analysis assumes: (1) prices discount everything (all information is reflected in price); (2) prices move in trends; (3) history tends to repeat itself. Common tools: moving averages, RSI, MACD, Bollinger Bands, support/resistance levels, chart patterns, and volume analysis. Critics argue technical analysis is no better than astrology; proponents cite its self-fulfilling nature (enough participants watching the same signals create real price effects). Academic evidence is mixed — some patterns show weak predictive power, but transaction costs often eliminate the edge.

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