Table 1 An evaluation indicator system for food security
First-layer index | Second-layer indices | Third-layer indicators | Properties |
|---|---|---|---|
Food security composite index (FSCI) | Quantity security index (\({Y}_{1}\)) | \({X}_{11}:\) Cereal production per capita | Positive |
\({X}_{12}:\) Domestic cereal supply quantity | Positive | ||
\({X}_{13}:\) Net cereal imports | Negative | ||
\({X}_{14}:\) Food loss | Negative | ||
\({X}_{15}:\) Per capita food production value variability | Negative | ||
Economy security index (\({Y}_{2}\)) | \({X}_{21}:\) Gross domestic product per capita, PPP | Positive | |
\({X}_{22}:\) The agriculture orientation index for government expenditures | Positive | ||
\({X}_{23}:\) Food consumer price index (CPI) | Negative | ||
\({X}_{24}:\) Food price inflation | Negative | ||
Resource security index (\({Y}_{3}\)) | \({X}_{31}:\) Percentage of arable land area | Positive | |
\({X}_{32}\): Rail line density | Positive | ||
\({X}_{33}:\) Port container traffic | Positive | ||
\({X}_{34}:\) Political stability and absence of violence index | Positive | ||
\({X}_{35}\): Control of corruption index | Positive | ||
\({X}_{36}:\) Percentage of agricultural freshwater | Positive |