Generation of Food Security Index

For each dimension of food security, primary and supporting indicators were identified along with some measures of stability (standard deviation). These indicators are then summarized into indices using principal components analysis. Food Utilization is summarized into one index, while Food Accessibility is summarized into three indices, and Food Availability into two indices. To develop a Food Security Index (FSI), the six indices are used as inputs in another principal components analysis. Note that the indices are used instead of the individual primary, support, and stability measures to ensure that FSI and the three dimensions is properly supported by the conceptual framework.

The resulting FSI assigns similar loadings to the Food Utilization Index, Food Accessibility Index (CPI Indicators), and Food Availability Index (indicators of availability of cereals). FSI along with its dimensions are standardized so that the 1990 values are set to 100. Thus, index values are interpreted as relative changes from the 1990 levels. FSI can be updated once the individual dimensions are updated.

To evaluate the validity FSI as a metric of overall food security condition in the country, a model that will test the validity of the framework (dimensions and external threats) was developed. From the way FSI was constructed, it is but natural for FSI to move along the same path as Food Accessibility and Availability Indices. While Food Utilization Index do not directly influence FSI, it influences Accessibility and Availability who directly affects FSI. On the other hand, too much fluctuations in weather condition threaten Food Security. Large share of Poverty Alleviation and Agriculture Budget in the General Appropriations Act will enhance Food Security condition the following year. Finally, fast population growth will surely threaten Food Security of the country.