A note on synthetic data for replication purposes in agricultural economics. (15th August 2022)

• Record Type: Journal Article
• Authors: Wimmer, Stefan; Finger, Robert
• Is Part Of: Journal of agricultural economics. Volume 74:Number 1(2023)
• Page Start: 316
• Page End: 323
• Publication Date: 2022-08-15
• Subjects: agricultural economics -- credibility crisis -- farm‐level data -- proprietary data -- replicability -- synthetic data; Agriculture -- Economic aspects -- Periodicals; 338.1
• DOI: 10.1111/1477-9552.12505
• Languages: English
• ISSNs: 0021-857X

Abstract

Abstract: Empirical studies in agricultural economics usually involve policy implications. In many cases, such studies rely on proprietary or confidential data that cannot be published along with the article, challenging the replicability and credibility of the results. To overcome this problem, the use of synthetic data—that is, data that do not contain a single unit of the original data—has been proposed. In this note, we illustrate the utility of synthetic data generation methods for replication purposes using a range of methods from agricultural production analysis. More specifically, we compare input elasticities and technical efficiency scores based on different farm‐level production data between original data and synthetic data. We generate synthetic data using a non‐parametric method of classification and regression trees (CART) and parametric linear regressions. We find synthetic data result in elasticities and technical efficiency distributions that are very similar to the original data, especially when generated with CART, and conclude with implications for the research community.