The Bank of Canada estimates that the effects of changes in monetary policy take approximately18 monthsto fully work through the entire economy. This lag exists because monetary policy impacts various sectors, such as consumer spending, business investment, and trade, at different speeds.
* B. 6 months: This is too short a timeframe for the full effects of monetary policy to materialize.
* C. 3 months: Immediate impacts may be seen in financial markets, but the broader economic effects require longer.
* D. 36 months: This is far longer than the typical lag for monetary policy effects.

Trend analysis compares financial statement items or ratios over several periods to identify patterns in a company's performance. A major limitation is that the selected base period must be representative. If the base year is abnormal because of recession, restructuring, one-time gains, losses, or unusual operating conditions, later comparisons can be misleading. Option B is too restrictive because trend analysis can support both internal historical review and broader analysis when used carefully. Option C is not the defining characteristic; both trend ratios and percentage changes can be useful depending on context. Option D is incorrect because a loss in the base year can make percentage-based trend calculations unreliable or meaningless. Therefore, the best characteristic is the warning about an unrepresentative base period.

Both technical analysis and fundamental analysis are tools used to predict changes in security prices, but they differ significantly in their approaches.
* Fundamental Analysis evaluates the intrinsic value of a security by analyzing factors such as a company's financial statements, industry conditions, and macroeconomic trends. It assumes that market prices will eventually reflect a security's true value.
* Technical Analysis examines historical price and volume data to predict future price movements. It focuses on identifying patterns, trends, and market sentiment without regard to the underlying fundamentals.
Option A is incorrect because it only describes fundamental analysis. Option B erroneously connects both methodologies to the random walk theory, which discounts their effectiveness. Option D misstates their purpose, as technical analysis focuses on price trends, not the causes of price movements.
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Volume 2, Chapter 13: Fundamental and Technical Analysis, Overview of Fundamental and Technical Analysis, Canadian Securities Course.