So sánh phương pháp

	Rapid Market Appraisal	Agroecosystem Analysis
Lĩnh vực	Food Agriculture Studies	Food Agriculture Studies
Họ	Process / pipeline	Process / pipeline
Năm ra đời	2007	1987
Người khởi xướng	John Holtzman and the rapid-appraisal marketing tradition; FAO agrifood-chain guidelines	Gordon R. Conway
Loại	Rapid, iterative field-appraisal pipeline for market and value-chain diagnosis	Systems-diagnosis pipeline for agroecosystem performance
Công trình gốc	da Silva, C. A., & de Souza Filho, H. M. (2007). Guidelines for Rapid Appraisals of Agrifood Chain Performance in Developing Countries. Agricultural Management, Marketing and Finance Occasional Paper 20. Rome: FAO.	Conway, G. R. (1987). The properties of agroecosystems. Agricultural Systems, 24(2), 95-117.
Tên gọi khác	RMA, Rapid Reconnaissance of Agricultural Markets, Rapid Agrifood Chain Appraisal, Subsector Rapid Appraisal	AEA, Agroecosystem Properties Analysis, Conway Agroecosystem Analysis, Agroecosystem Diagnosis
Liên quan	4	4
Tóm tắt	Rapid market appraisal (RMA) is a fast, low-cost, interdisciplinary field method for diagnosing how agricultural markets and value chains perform and where their binding constraints lie. Rooted in the rapid-reconnaissance marketing tradition associated with John Holtzman and codified for value chains in FAO's 2007 guidelines by Carlos da Silva and Hildo de Souza Filho, RMA trades the comprehensiveness of a formal survey for speed and flexibility: a small team scopes the commodity system, mines existing data to form hypotheses about constraints, and then conducts iterative semi-structured interviews with actors all along the chain — producers, traders, processors, transporters, retailers, and support services — refining its understanding as it goes and triangulating across sources. The product is a timely, actionable diagnosis of market structure, conduct, and performance that can guide investment, policy, or project design when a slow census-style study is neither affordable nor warranted.	Agroecosystem analysis (AEA) is a systems-diagnosis framework, formalized by Gordon Conway in 1987, that characterizes any agricultural system through four properties: productivity, stability, sustainability, and equitability. Rather than judging a farming system by yield alone, AEA treats the agroecosystem as an ecological system shaped by human management and asks how much it produces, how reliably it produces it across seasons and shocks, whether it can maintain output over the long run, and how its benefits are distributed among the people who depend on it. The analyst bounds a system at an appropriate hierarchical level — plot, field, farm, watershed, or region — and uses interdisciplinary teams, ranked questions, and simple structured diagrams to surface the key relationships and the trade-offs among the four properties that drive design and policy choices.