Recency, relevance and evidence expiry

ಸರಳ ಅರ್ಥ

Recency, relevance and evidence expiry means examining questions, evidence ledgers, competing explanations, behavioural bias, review discipline and calibration with the identity, period, unit, source and limitations kept visible. It is a disciplined way to describe evidence, not a shortcut to an investment conclusion.

Learning objectives #

After this chapter you should be able to define recency, relevance and evidence expiry, identify the evidence needed to use it, distinguish a reported zero from unavailable evidence, and explain why unlike instruments or periods may not be comparable.

Prerequisites #

Read “Seek disconfirming evidence” first. Be comfortable checking an exact listing or instrument, its source, observation date, native currency and unit. When any one of those is unknown, pause the comparison and record the gap.

Core concept #

Evidence has observation dates and thesis-specific expiry rules rather than generic freshness. Preserve raw facts separately from interpretation, and retain the denominator, time window, classification rule and provenance that make the evidence reproducible.

Method #

For recency, relevance and evidence expiry, first identify the exact evidence named in this chapter: Evidence has observation dates and thesis-specific expiry rules rather than generic freshness. Then freeze identity and period, collect source-backed inputs with units, calculate or classify only compatible evidence, and record contrary facts and unavailable fields.

Where it appears in XMarketRadar #

Use Research Workspace, filings, Company Intelligence, decision signals, Review Center, exports and persisted AI explanations as evidence aids. A displayed field is useful only with its source and as-of context. If XMarketRadar does not calculate this chapter’s concept directly, use the chapter as an educational checklist and retain the supporting primary document or screen URL in the research workspace.

Worked example #

A 90-day-old price may be stale for liquidity but a 1-year covenant term can remain relevant. Module context: Illustrative thesis sets a 10-completed-session review horizon, records 4 supporting facts, 2 opposing facts and 1 unavailable input; after 8 sessions the outcome remains pending, not a hit or miss. This is an illustrative audit trail, not live data, a target or an expected outcome.

Interpretation #

Interpret the result in the direction defined by the field, not by an assumed desirable outcome. Higher, lower, positive and negative can each have different meanings by context. Compare the observation with its own history or a compatible benchmark, and label conclusions as observations, interpretations or user decisions.

Limitations and common mistakes #

Using retrieval time as evidence recency. Narrative coherence, hindsight, selective samples, generated text and changing definitions can make weak evidence feel stronger than it is. A precise calculation can still mislead when the source is stale, the denominator changed, or a classification hides important detail.

Unavailable evidence #

If evidence needed for this chapter’s focus is missing—Evidence has observation dates and thesis-specific expiry rules rather than generic freshness.—the result is unavailable (—). Do not resolve the gap by using retrieval time as evidence recency. It is not zero, neutral, low risk, a failed condition or permission to substitute a different listing. Retain the last verified observation only with its original date and stale label.

Market and jurisdiction differences #

Disclosure regimes, languages, session calendars and source access differ. User-declared catalysts and risks remain declarations rather than inferred events in every jurisdiction. Exchange rules, accounting conventions, calendars, taxes, disclosure timing, quote scale and licensed coverage can differ. Verify the current primary source for the relevant venue; registry support alone does not prove that every field is available.

Key takeaways #

For recency, relevance and evidence expiry, remember this boundary: Using retrieval time as evidence recency. Keep the evidence exact, dated and source-backed; publish missing information as unavailable rather than manufacturing a value.

Practice #

Reproduce this historical scenario from source-labelled inputs: A 90-day-old price may be stale for liquidity but a 1-year covenant term can remain relevant. Then change one input, preserve the original period and unit, and explain whether the result changes or becomes unavailable. Write the identity, source, date, unit and failure condition, then state exactly what would display as —.

Knowledge check #

Related next steps #

Continue with “Selection, confirmation and availability bias”. Follow the previous/next chapter links and related glossary terms for canonical definitions. Re-run the checklist whenever the source, period, instrument identity or methodology changes.

Educational use only #

This chapter is descriptive education, not investment advice, a forecast, a recommendation, a suitability assessment or an instruction to buy, sell, rebalance, trade or place an order. XMarketRadar’s broker connections remain read-only.