An economics field of study that applies both macroeconomic and microeconomic principles to international trade, which is the flow of trade among nations, and to international finance, which is the means of making payment for the exchange of goods among nations. International economics studies the economic interactions among the different nations that make up the global economy. Often this interaction is viewed in terms of the domestic economy and the foreign sector. The key economic principle underlying international economics is the law of comparative advantage.

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Our pedestrian's jaunt through the economy is not, unfortunately, an unrestrained shopping spree for confectioneries, spark plug tools, and Houston, Texas. We have other important errands to run. At the moment we need to hike over to Shady Valley's exclusive provider of cable television services, the Merciless Monolithic Media Masters Cable Television Company, Inc., to inquire about a mysterious fee that appeared last month's bill.

The good news is that the Merciless Monolithic Media Masters (the 4M people) Cable office is a mere 2 miles (3 kilometers for the metrically inclined) from the Shady Valley Central Town Sprawling Hills Shopping Mall. A hop, skip, and a moderately long jump later, our excursion through the economy takes us to the front door of the 4M Cable Television Company where I hope to discover why last month's cable bill included a $3,569 charge for something called "The Vacation Channel." I didn't even know I had a vacation channel. (But, I'm sure it's a great channel, and if I don't have it, then I will certainly subscribe. Please don't disconnect me.)

Of course, because this an afternoon workday, the doors of the 4M office are locked. I can almost make out, through the expensive stained glass windows, what appears to be several Merciless Monolithic Media Masters Cable Television employees, with champaign bottles in hand, dancing on expensive mahogany desks. Let's not disturb them. As they say in the cable business, an upset worker is a disconnected customer.
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Today, you are likely to spend a great deal of time looking for a downtown retail store hoping to buy either a toaster oven that has convection cooking or a birthday gift for your mother. Be on the lookout for defective microphones.
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