THE QUESTION IS

Analyze the changes in qualities and prices of Jewellery and Medicines and Cosmetics using demand-supply analysis, and identify the possible reasons.

The following table shows the annual percentage change in volume {which can he understood as quantity} and price of the sales of goods sold in certain types of stores in Hong Kong based on the retail sales survey conducted by the Hong Kong Census and Statistics Department. Types of stores Percentage change Percentage change Percentage change Percentage change (sectors) in price 'om the in volume from the in price from the in volume from the previous year previous year previous year previous year +53% arkets +53% Clothing and l .15an Footwear Consumer durables l 3% Department Stores H.594: Jewellery +13% Medicines and +15% Cosmetics Note: 1. 'Values of goods used together with provision of services are not included in the retail sales statistics. {For example. value of food in restaurant dining is not included in the food category above.) 2. Purchases by tourists at these stores are included in the statistics. Note that for some types of stores. a high proportion of sales are to tourists