Food security is usually identified as a desirable outcome depending on a variety of factors such as food availability, access and distribution. Food self-sufficiency is one of the key factors when it comes to evaluating food availability. Furthermore, food self-sufficiency is not only a national concern but also relevant on a sub-national scale. A consumption-oriented approach is proposed to measure the degree of self-sufficiency on a regional scale. In our proposal, exports are subtracted from domestic supply to assess the share of domestic production in domestic consumption. By doing so, the effects of regional specialization in export crops on our estimates are avoided. Due to its increasing relevance in consumption patterns, the food industry is included as a separate group of food items. Owing to their small size, high density of human activities, specialization in tourism, and remoteness from the European continent, the Canary Islands are an interesting laboratory for illustrating the advantages and shortcomings of measuring food self-sufficiency on a local scale.

中文翻译：

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以消费为导向的衡量区域粮食自给自足的方法

粮食安全通常被确定为理想结果，这取决于粮食供应​​、获取和分配等多种因素。粮食自给自足是评估粮食供应的关键因素之一。此外，粮食自给自足不仅是国家关注的问题，而且在次国家范围内也具有相关性。提出了一种以消费为导向的方法来衡量区域范围内的自给自足程度。在我们的建议中，从国内供应中减去出口，以评估国内生产在国内消费中的份额。通过这样做，可以避免出口作物的区域专业化对我们估计的影响。由于其在消费模式中的相关性越来越大，食品工业被列为单独的一组食品。由于它们的体积小，