The major city in the Soviet Union that suffered under Germany's blockade is Leningrad. The Siege of Leningrad began on the 8th of September in 1941 and ended on the 27th of January of 1944 following the retreat of the Wehrmacht. Hope this answers your question.
A link between economic wants and preferences is always the basic needs that are essential for our daily life. Preferences can be made after defining the economic wants and basic needs of the people involved.