Both invoices and receipts are ways of tracking purchases of goods and services. Most capital goods and food for domestic consumption are imported. Black and gray markets for foodstuffs, goods, and cash arose. Prices of goods and wares became greatly inflated. Instances of all of these trade goods have been found. Consumption of goods and daily demand also increased. There are many ways to stimulate demand for goods and services. VAT on the purchase of goods and products is 16%. They both worked as dry goods merchants. Originally, Singapore manufactured goods such as textiles. Employment is also high in agriculture, manufacturing sales, trading goods, and education. Mitsubishi companies also were active in consumer goods and services. Criminal gangs trade goods, such as mobile phones, across EU countries. Civilians suffered shortages of all varieties of consumer goods. Dublin became the centre for trade of many goods, especially slaves.