Beyond administrative boundaries: how agricultural socialized services drive grain-oriented cropping transformation in China
Year: 2026
Type: article
Abstract: China’s grain security rests on a smallholder sector in which the average household cultivates 0.6 hectares, a scale that constrains mechanization and limits gains in production efficiency. Since 2013 the government has responded through agricultural socialized service (ASS) pilots, which deliver mechanized and technical services to fragmented producers without altering land ownership. Causal evidence on how such policies reshape land allocation remains scarce, and their reach beyond implementing jurisdictions has been largely overlooked. Drawing on a panel of 30 Chinese provinces from 2006 to 2022, this study combines a multi-period difference-in-differences design with a spatial Durbin model to estimate the effect of the ASS pilots on grain-oriented cropping structure. The policy raises the grain share of sown area by 2.8 percentage points, an effect concentrated almost entirely in wheat, the most mechanization-compatible of the major grains. Four transmission channels register significant responses: land transfer consolidation, agricultural mechanization, cooperative development, and a widening rather than a narrowing of the grain portfolio. The last of these runs counter to the conventional specialization account and is consistent with service provision relaxing the timing constraint on multiple cropping, so that grain expansion and crop diversity advance together rather than trading off. Heterogeneity tracks physical conditions more closely than administrative geography: the estimated effect in plains provinces is roughly twice that in hilly provinces, whereas differences across the eastern, central and western belts are not statistically distinguishable. Spillovers are substantial. Indirect effects are 1.8 times direct effects and account for close to two thirds of the total, so non-spatial estimation understates the total policy effect by approximately 41% while overstating its purely local component by approximately 40%. Three implications follow: target service expansion by mechanization compatibility rather than by administrative region; sequence implementation outward from high-capacity provinces so that spillovers are harvested deliberately rather than incidentally; and evaluate service-oriented policies at a supra-provincial scale, since province-by-province assessment misstates both their magnitude and their geographic incidence.
Language: English
Subfield: Economics and Econometrics
Domain: Social Sciences
Open Access status: gold
Estimated APC paid: $2,353
OpenAlex ID: W7214079035