HARTI

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Comparable purchase quotation [LKR/kg]; Comparable selling quotation [LKR/kg]; Non-overlapping transfer costs [LKR/kg]; Expected saleable mass loss [%]; Product, grade and price basis

Other required evidence. Commodity; grade; market role; price; unit; date; transfer costs.

Fictional worked example · 2025

Laggala Pallegama — price spreads · Laggala Pallegama

Use matching grade, price date, currency, mass basis and payment terms. This quotation scenario excludes unlisted costs and is not realized profit or a forecast.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Realized net proceeds and comparable market-price movement.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

National Institute of Standards and Technology United States · Dataplot Coefficient of Variation
Government publication · Description, sample coefficient of variation and ratio-scale restrictions

Use a meaningful zero and positive mean. Local series selection and decision limits still need confirmation.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Comparable observation [LKR/kg]

Other required evidence. Regular prices; commodity grade; market; observation dates; baseline; missingness.

Fictional worked example · 2025

Laggala Pallegama — price volatility · Laggala Pallegama

Match definitions, methods, grade, location and reference basis. Gaps are not joined. Descriptive variation is not a forecast, causal effect or significant trend.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Realized price exposure, losses and forecast error if a model is used.

• NIST Coefficient of Variation — Government publication. Definition of sample CV. Published sample SD/mean ratio; positive ratio-scale mean is needed.
• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Comparable observation [LKR/kg]

Other required evidence. Multi-year prices; season; market; grade; inflation basis; observation coverage.

Fictional worked example · 2025

Laggala Pallegama — seasonal markets · Laggala Pallegama

Match definitions, methods, grade, location and reference basis. Gaps are not joined. Descriptive variation is not a forecast, causal effect or significant trend.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Trend and uncertainty after action using the same definition.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Comparable observation [LKR/kg]

Other required evidence. Commodity; grade; comparable price quotes; market; period; sample count.

Fictional worked example · 2025

Laggala Pallegama — market comparisons · Laggala Pallegama

Match definitions, methods, grade, location and reference basis. Gaps are not joined. Descriptive variation is not a forecast, causal effect or significant trend.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Distribution and uncertainty after intervention with unchanged definitions.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Required eligible frame [quotes]; Distinct members of that frame covered [quotes]; Frame members with unknown coverage [quotes]

Other required evidence. Market frame; commodity list; required quotes; valid quotes; collection dates.

Fictional worked example · 2025

Laggala Pallegama — market coverage · Laggala Pallegama

Count each eligible unit once for the selected service and period. Received messages, attendance, adoption and outcomes are separate measures.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Verified eligible units receiving service and remaining unmet need.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Specified basket/input quantity [kg]; Comparable unit price [LKR/kg]; Item, grade and basket specification

Other required evidence. Basket composition; quantities; local prices; income benchmark; period; definitions.

Fictional worked example · 2025

Laggala Pallegama — food affordability · Laggala Pallegama

An absent or zero denominator has no unit-cost result. Keep fixed, variable and opportunity costs identifiable.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Actual comparable unit cost and service/output quality.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Food and Agriculture Organization of the United Nations · Farm Management for Asia A Systems Approach
Institution publication · Chapter 4, Gross margin and section 4.7.1

Per-hectare and variable-cost break-even outputs are algebraic rearrangements. Local costs, prices and interpretation still need confirmation.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Saleable output [kg]; Realized price [LKR/kg]; Variable costs [LKR]; Matching crop area [ha]

Other required evidence. Crop revenue; variable costs; hectares; production system; sample weights.

Fictional worked example · 2025

Laggala Pallegama — farmer returns · Laggala Pallegama

Keep fixed costs, family-labour opportunity cost, taxes and financing identifiable. Gross margin is not net profit.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Realized gross margin and downside outcomes on the same basis.

• FAO enterprise and activity budgeting — Institution publication. Section4 enterprise and activity budgeting. Published enterprise gross margin/revenue and variable-cost distinction.
• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Batch input on stated moisture basis [kg]; Saleable output [kg]; Usable by-product [kg]; Closing stock [kg]; Documented transfers out [kg]

Other required evidence. Batch input; output; losses; quality degradation; stage; measurement protocol.

Fictional worked example · 2025

Laggala Pallegama — marketing losses · Laggala Pallegama

Use a consistent moisture basis and process boundary. Unaccounted mass is not automatically avoidable food loss or spoilage.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Verified physical loss and quality loss on comparable batches.

• FAO food loss measurement — Institution publication. Full method locator not established. Institutional context; does not establish the calculation or local approval.
• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Comparable purchase quotation [LKR/kg]; Comparable selling quotation [LKR/kg]; Non-overlapping transfer costs [LKR/kg]; Expected saleable mass loss [%]; Product, grade and price basis

Other required evidence. Matched prices; transport costs; grade; trade flows; dates; restrictions.

Fictional worked example · 2025

Laggala Pallegama — market integration · Laggala Pallegama

Use matching grade, price date, currency, mass basis and payment terms. This quotation scenario excludes unlisted costs and is not realized profit or a forecast.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Realized net proceeds and comparable market-price movement.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

World Bank · Impact Evaluation in Practice Second Edition
Institution publication · Chapter 7, table 7.2, printed page 140, PDF page 170

The formula is verified. Causal interpretation still requires a defensible study design, comparison and assumptions.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Treatment Real enterprise income on stated price basis before [LKR/ha]; Treatment Real enterprise income on stated price basis after [LKR/ha]; Comparison Real enterprise income on stated price basis before [LKR/ha]; Comparison Real enterprise income on stated price basis after [LKR/ha]; Study design and comparability evidence; Outcome definition, method and reference basis

Other required evidence. Policy exposure; baseline; follow-up; comparison group; prices; weather; confounders.

Fictional worked example · 2025

Laggala Pallegama — policy evaluation · Laggala Pallegama

The arithmetic alone does not establish causation. Design, parallel trends, confounding, attrition, uncertainty and adverse effects need appropriate evidence.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Verified outcomes, costs, distributional effects and evidence strength.

• World Bank Impact Evaluation in Practice Second Edition — Institution publication. Chapter7 difference-in-differences. Published difference-in-differences estimator and study assumptions; aggregate examples do not establish causation.
• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Specified basket/input quantity [kg]; Comparable unit price [LKR/kg]; Item, grade and basket specification

Other required evidence. Input type; price; quantity; location; period; farm system.

Fictional worked example · 2025

Laggala Pallegama — input markets · Laggala Pallegama

An absent or zero denominator has no unit-cost result. Keep fixed, variable and opportunity costs identifiable.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Actual comparable unit cost and service/output quality.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Option cost [LKR]; Available budget [LKR]; Mandatory constraints; Expected benefit and its evidence; Resource needs and adverse effects

Other required evidence. Organization evidence; participation; costs; sales outcomes; governance; research design.

Fictional worked example · 2025

Market observation · Laggala Pallegama

Affordability does not prove feasibility or scientific suitability. A missing mandatory condition keeps an option unresolved.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Verified benefits, costs and adverse effects versus the agreed baseline.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Person-days worked [person-days]; Cash wage per hired person-day [LKR/person-day]; Matching cultivated area [ha]; Unpaid family labour [person-days]

Other required evidence. Labour days; wages; crop; season; hectares; family and hired labour.

Fictional worked example · 2025

Laggala Pallegama — land and labour · Laggala Pallegama

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Output per relevant input alongside quality and resource impacts.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Comparable reference value [kg]; Later/comparison value [kg]

Other required evidence. Arrivals; prices; transport interruptions; crop output; event timing; baseline.

Fictional worked example · 2025

Laggala Pallegama — food supply disruptions · Laggala Pallegama

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Validated exceptions, response time and resulting outcome.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Food and Agriculture Organization of the United Nations · Guidelines for defining financial economic environmental and social information
Institution publication · Sections 2.2.2 and 2.2.3, discounting and Net Present Value

The five-year horizon, discount rate and cash assumptions are local settings. Verification does not approve an investment or loan.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Initial investment [LKR]; Net cash flow year1 [LKR]; Net cash flow year2 [LKR]; Net cash flow year3 [LKR]; Net cash flow year4 [LKR]; Net cash flow year5 [LKR]; Residual value at end of year5 [LKR]; Example discount rate [%]

Other required evidence. Storage costs; losses; capacity; price seasonality; energy; shelf life.

Fictional worked example · 2025

Laggala Pallegama — storage investments · Laggala Pallegama

Match currency, price year, real/nominal basis and cash-flow timing. The example rate and five-year horizon are assumptions, not institutional financing terms; no credit approval follows.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Realized cash flows, benefits and costs versus the approved appraisal.

• FAO Guidelines for financial economic environmental and social information — Institution publication. Section2 discounted cash-flow analysis and NPV. Published discounted cash-flow method; local rate, horizon and cash assumptions are separate.
• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Option cost [LKR]; Available budget [LKR]; Mandatory constraints; Expected benefit and its evidence; Resource needs and adverse effects

Other required evidence. Target population; strata; expected variability; research question; cost; precision.

Fictional worked example · 2025

Market observation · Laggala Pallegama

Affordability does not prove feasibility or scientific suitability. A missing mandatory condition keeps an option unresolved.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Verified benefits, costs and adverse effects versus the agreed baseline.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Original source measurement [LKR/kg]; Independent comparison measurement [LKR/kg]; Original measurement unit; Comparison measurement unit; Compared measure and definition

Other required evidence. Observation ID; independent quote; unit; grade; collection date; verification.

Fictional worked example · 2025

Laggala Pallegama — publication quality · Laggala Pallegama

Keep both originals, units, scope, method, calibration and correction history. A difference does not identify which source is correct; no automatic averaging or overwrite.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Discrepancies resolved with evidence and repeat error rate.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Required eligible frame [quotes]; Distinct members of that frame covered [quotes]; Frame members with unknown coverage [quotes]

Other required evidence. Needs assessment; participant frame; previous training; adoption; location.

Fictional worked example · 2025

Laggala Pallegama — training priorities · Laggala Pallegama

Count each eligible unit once for the selected service and period. Received messages, attendance, adoption and outcomes are separate measures.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Verified eligible units receiving service and remaining unmet need.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Received or defect observed; Recorded due date; Assessment date; Case/work closed; Documented critical unresolved condition; Responsible office or maintainer; Actual closure date when closed

Other required evidence. Request; question; responsible institution; evidence availability; due date; analyst capacity.

Fictional worked example · 2025

Laggala Pallegama — research requests · Laggala Pallegama

Example due dates are not legal service standards. Do not alter statutory deadlines by silently subtracting pauses, or infer severity from age alone.

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Response time, aged cases, completion and reopened cases.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.

Keep the same place, observation period, definitions, units and source versions.

Analysis inputs. Earlier/source value [LKR/ha]; Independently reproduced value [LKR/ha]; Original measurement unit; Comparison measurement unit; Compared measure and definition; Documented absolute comparison tolerance [LKR/ha]; Expected input/method version; Reproduced input/method version; Original result creator; Independent reproducer

Other required evidence. Dataset edition; survey design; code; model; assumptions; result; reviewer.

Fictional worked example · 2025

Laggala Pallegama — evidence reproducibility · Laggala Pallegama

Proposed checking role. Agricultural economist, market analyst and survey statistician.

After the action. Independent reproduction within the approved tolerance.

• SHARED domain decision contracts — Validation required. Domain decision rules and matching fictional examples. Local comparisons, constraints, source matching, sorting and follow-up proposals; developer checks do not establish scientific or client approval.

Confirm local scope, data rights, parameters and responsible roles in this Institution review. Published components retain their source; they do not approve the local application.