If the commodity is girls, and the country is India, a declining supply actually manages to push down the value placed on the commodity. 8 girls to every 10 boys means men who can afford wives but can't find them, are forced to look for younger ones. To keep girls virginal for their wedding night, parents get them married as soon as they can. Keep them too long, and they might get abducted.
A drabble is a story told in exactly 100 words.