Which bias is most associated with an overly optimistic forecast guiding decisions?

• A. Unconscious bias
• B. Optimism bias
• C. Information bias
• D. Hindsight bias

Answer: (B)

Optimism bias is the tendency to overestimate how favorable things will turn out and to underestimate the risks or downsides. When a forecast drives decisions and is overly positive, you’re seeing optimism bias at work: expectations about future rents, occupancy, or prices are stretched beyond what the evidence supports, leading to choices based on an unrealistically rosy view. In valuation practice, this shows up as projecting strong growth, low vacancies, and high resale values without adequately weighing potential downsides or market volatility, which can inflate valuations and misguide strategy.

This differs from unconscious bias, which is a broad, often subconscious influence on judgment; information bias, which stems from biased or incomplete data gathering; and hindsight bias, which makes past events seem obviously predictable after they occur. The scenario described aligns most closely with optimism bias because the forecast itself is biased toward favorable outcomes.