3.It is in the public interest, for example, to limit possession of agricultural land in a country where there is a shortage of arable land but a great number of inhabitants. It is in the public interest, on the other hand to do so in a country where there is enough arable and not a very large population. In this case, the minimum and maximum area of arable land to be owned will vary from country to country. The same is true for the nationalisation of some economic projects and some means of production (Cf. Abdel Jawad 1971 362).