In any national economy, agriculture is one of the key sectors of economic activity overall. As always anthropogenic activities held in conjunction and, not infrequently, the adversarial relationship with the environment, agriculture accumulate elements of society, from food security to social stability. In this context, one of the objectives of long-term agricultural development strategy must be accounted for to ensure food security threshold. This paper aims to study the scientific endeavor further the current concepts of food security and the challenges facing countries in this regard. Every day, the world's population grows by about 220,000 people and the world population every year we add 80 million people. All these people must have access to sufficient and safe food. Globalization of the food chain causes constant new challenges and risks to health and interests of consumers. This article was prepared as a basic research as sources of information: the international literature, FAO (Food and Agriculture Organization - United Nations Food and Agriculture Organization) data, official statistics etc. According to FAO (Food and Agriculture Organization - United Nations Food and Agriculture Organization), food security means “guaranteeing each individual at all times, in any place or time of access to adequate and healthy diet to allow him to have a regime sufficient food for a healthy and active lifeâ€. Multidimensional nature of food security, just as the fight against poverty, calls a good correlation between the various sectors - agriculture, commerce, infrastructure, health - and the variety of intervention levels - local, national, international. In recent years indicate that there are problems of food insecurity in 86 countries, 43 African, 24 Asian, 9 in Latin America and the Caribbean, 7 in Oceania and Europe 3. In 2004, 35 countries have received emergency aid because of the food crisis. The main causes were: military and civil conflicts, post-conflict situations, refugees, economic disadvantaged areas and climate issues. Global agricultural production should increase by at least 3% per year to provide live feed of the rising population, according to a study by the Economist Intelligence Unit. At present, current agricultural productivity growth is only 2%. In the present research work, we demonstrated that food security is a global problem of humanity, in the context of population growth, climate change and economic crisis. The food security is influenced by four groups of factors, namely: the social - economic and political, agro-food sector performance, social protection and health and hygiene.
Rasch Model for Assessing Propensity to Entomophagy
