They have tried to explain four important components such as food availability, access, utilization and stability for the comprehensive understanding of the inner meaning of food security. The knowledge about food security becomes vital to analyse household to food security. The resilience analysis of a household is directly linked to components food security since the final goal of food security program is to satisfy the requirements of these targets (MoA, 2014; MoARD, 2009). According to the official reports, the major interventions of the program have direct implication to food security outcomes including interventions related to agricultural production (food availability), infrastructures, income generating activities to ensure sufficient income (access to food, utilization), and asset creation (access and stability). Achieving food security is the aim of food security policy of Ethiopia, and is complicated than simply ensuring food availability through production, stocks, and reserves across multiple scales. Normally food security is closely related to the ownership of resources and assets (land), and the capacity of individuals and communities to acquire goods and services (Warr, 2014). In addition to financial resources, it requires strong institutions, conducive policy environment, and access to markets, health services, and physical infrastructure. Importantly, strong institutional arrangements are needed along the entire food supply chain to ensure the effective working of the food system (Qureshi, 2007).
In the analysis of households resilience to food insecurity, four components of food security was mainly emphasized due to several reasons. The first reason stems from the inseparable linkages among food security components. Food security interventions are linked to food availability, which directly leads to food access, and utilization (IFPRI, 2016). The nutritional value of food is an aspect of food utilization (food security) and is treated inseparable with food access and availability (Tyler et al, 2013). The other reason is based on the argument of Anderson & Farmer (2015). Their argument says that food security resilience analysis is appropriate when it is linked to food security components. Analysis of these components directly could be interpreted at the household level. As a household is the unit of analysis of this study, rural households are at the centre of the analysis of food security resilience. As Keller, et al. (2013) agree with the use of a household as a unit of analysis because it is at the household level that the negative outcomes of food insecurity manifest in human welfare