The Four Ps

Research any negative or positive externalities the industry produces. Does the transaction of a buyer and seller directly affect a third party? Is the effect a negative or positive externality? How does the externality impact the economy?
Research whether the industry produces public goods or private goods, or is a natural monopoly. Are the goods or resources rival, excludable, or neither? Explain.

First, define what you call negative or positive externalities. Do this in porno or prostitution? What about slavery or child selling? What about guns? Or knives? fees? Credit cards?

Second, what if the transaction is free? Dating services? Is it free?

Third, impact economy? slavery? prostitiution? crimes? drugs? Drugs - medical or street.

Four, public or private goods - banking, government reports. Same can be use for a Natural monopoly (oil)

Five, competition for resources. (steel - cars, trucks, buildings) (heating - oil, coal) (stone- railroads, roads, buildings) trade magazines, banking, government

Keep in mind, web-design includes ordering, buying, and communications.

Think of a product for an example rubber - tires- bicycles, cars, trucks, airplanes The list can go on for rubber.

Communications - ordering, buying, communication, selling. all have an effect or affect on the externallities of econemy, life style or health of the individual, institution, families, governments. And the thought of polices due to reports, interpetations, and actions.

Just a quick thought of some of the areas and topics you can use.