Why should relevant and permissible economic or market-study data identify its date and source?
Correct Answer
A) Such data ages and its relevance depends on when
Timing and provenance help assess whether information is reliable and relevant to the appraisal’s effective date and intended use. A date is not a guarantee of accuracy or a way to extend an opinion’s validity. Current demographic information is not automatically permissible valuation evidence: applicable nondiscrimination laws and USPAP restrictions still govern protected characteristics. No single universal citation format is prescribed.
Why This Is the Correct Answer
Option A is correct because such data ages and its relevance depends on when it was produced. Timing and provenance help assess whether the information is reliable and relevant to the appraisal's effective date and intended use. Data and inputs must be appropriate as of the valuation date.
Why the Other Options Are Wrong
Option B: Data providers require attribution by contract
Option B says data providers require attribution by contract. Some licenses may, but that is not the appraisal reason for dating and sourcing data, which is to support its reliability and relevance.
Option C: USPAP prescribes a citation format for such data
Option C says USPAP prescribes a citation format for such data. USPAP does not prescribe a single universal citation format.
Option D: Dating the data extends the report's useful life
Option D says dating the data extends the report's useful life. A value opinion is tied to its effective date, and dating data does not extend its validity.
Data has a birthday
Each data point has a birthday and a parent: when it was produced and who produced it. Both affect whether it fits your effective date.
How to use: Use this when a question asks why market data should carry a date and source.
Exam Tip
Choose the answer tied to relevance and reliability at the effective date. Answers about contracts, citation formats or extending a report's life miss the point.
Common Mistakes to Avoid
- -Believing USPAP mandates a citation format
- -Thinking a dated source extends the value opinion's validity
- -Using outdated market data without noting its date
Concept Deep Dive
Analysis
This question tests why economic and market-study data should be dated and sourced. Such data changes over time, so its relevance depends on when it was produced relative to the effective date. Source identification also helps readers judge reliability.
Background Knowledge
Economic and market conditions change, so data must be evaluated for its relevance to the effective date. Identifying date and source helps readers judge timeliness and reliability. Demographic data that touches protected characteristics remains subject to nondiscrimination laws and USPAP restrictions.
Real-World Application
An appraiser cites a regional employment report in a market analysis. Noting that the report is two years old and conditions have since shifted, the appraiser finds a current release from the same agency and dates both. Readers can see that the analysis reflects conditions near the effective date.
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