Question

determine diagramatically and explain how the market

1) for organically grown aubergines will be affected if the cost of natural fertilisers increase
2) for alaskian king Crab will be affected if, at the same time that medical reports confirm the suspected health benefits from the consumption; wages increased for trawler man
3) DVD rentals will be affected in a city if, there is an increase in number of stores, the price of renting movies on demand over the internet is decreased.