Per capita food supply variability
Per capita food supply variability (kcal/cap/day)
https://www.fao.org/faostat/en/#data/FS
| Title | Per capita food supply variability |
| Unit of measure | kcal/cap/day |
| Source data | FAOSTAT and explained sum of squares (ESS) calculations |
| Original data source | FAOSTAT and ESS calculations |
| Statistical concepts and definition | Per capita food production variability corresponds to the variability of the "food net per capita production value in constant 2004-2006 international USD" as disseminated in FAOSTAT. |
| Relevance | This metric monitors the fluctuations in the average daily caloric supply accessible to individuals over a specific period, serving as an indicator of the stability and reliability of food availability in a region. Notable variability in this indicator may indicate potential food insecurity, particularly in situations where drought conditions disrupt agricultural productivity and food supply chains. By tracking this variability, it is possible to identify populations at risk of food shortages during periods of diminished agricultural output due to drought. It also assists in the development of effective strategies to stabilize food supplies, such as improving food storage facilities, diversifying food sources, and enhancing agricultural resilience to environmental stresses. Understanding per capita food supply variability is thus essential for thorough drought risk management and strategic planning. |
| Time coverage | Annual |
| Sector coverage | Social/Farming |
| Data compilation | Missing values in the dietary energy supply are interpolated using a linear trend. The series is then detrended by fitting a cubic spline by ordinary least squares to the series. The difference between the cubic fit and the actual values is then calculated. Lastly, the volatility for a specific year is defined as the standard deviation of these differences over the previous five years. The aggregates are computed by applying the same methodology to the aggregates of the food supply variable. |
| Relationship* | -1 |
* This field expresses the impact on vulnerability. The minus sign indicates that it has a vulnerability-decreasing impact (positive impact on resilience), and the plus sign indicates a vulnerability-increasing impact.