Demographic Transition Models

A Demographic Transition Model describes the pattern of decline in mortality and natality (fertility) of a country due to social and economic development.

Can be describes as a 5-stage model:

1. Pre-industrial
2. LEDC
3. Wealthier LEDC
4. MEDC stable
5. MEDC population decline.

MEDCs vs LEDCs

• In many MEDCs, the cost of staple food items is relatively cheap.
• Most people make purchases based on taste and preference.
• Produce seasonality has mostly disappeared due to globalization. T
• his has also allowed for a greater international variety in most supermarkets.

• In LEDCs, many staple food items may not be always affordable as prices fluctuate.
• People tend to make purchases based on nutritional need and affordability.
• Political and economic agendas can affect food production (e.g. cash cropping)
• Even if food crops are not used as cash crops, food production is still impacted since arable land is being occupied all the same.