Engineering

Researchers find solar photovoltaics benefits outweigh costs

Over the past decade, the cost of solar photovoltaic (PV) arrays has fallen rapidly. But at the same time, the value of PV power has declined in areas that have installed significant PV generating capacity. Operators of ...

Energy & Green Tech

Researchers develop a roadmap for growth of new solar cells

Materials called perovskites show strong potential for a new generation of solar cells, but they've had trouble gaining traction in a market dominated by silicon-based solar cells. Now, a study by researchers at MIT and elsewhere ...

Security

The curious case of OpenBazaar

A year after the infamous Silk Road darknet marketplace was shut down by the FBI in 2013 for facilitating the sales of all things from guns to cocaine, a group of programmers developed a new darknet market, aptly naming it ...

Internet

Google enters battle for cloud gaming market

Ever-expanding Google becomes a gaming company Tuesday with the launch of its Stadia cloud service that lets people play console-quality video games on a web browser or smartphone.

Energy & Green Tech

To rid electric grid of carbon, shore up green energy support

Cornell and Northwestern University engineers, along with a federal economist, have created an energy model that helps to remove carbon-generated power from the U.S. electric grid—replacing it with a greener, financially ...

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Market

A market is any one of a variety of different systems, institutions, procedures, social relations and infrastructures whereby persons trade, and goods and services are exchanged, forming part of the economy. It is an arrangement that allows buyers and sellers to exchange things. Markets vary in size, range, geographic scale, location, types and variety of human communities, as well as the types of goods and services traded. Some examples include local farmers’ markets held in town squares or parking lots, shopping centers and shopping malls, international currency and commodity markets, legally created markets such as for pollution permits, and illegal markets such as the market for illicit drugs.

In mainstream economics, the concept of a market is any structure that allows buyers and sellers to exchange any type of goods, services and information. The exchange of goods or services for money is a transaction. Market participants consist of all the buyers and sellers of a good who influence its price. This influence is a major study of economics and has given rise to several theories and models concerning the basic market forces of supply and demand. There are two roles in markets, buyers and sellers. The market facilitates trade and enables the distribution and allocation of resources in a society. Markets allow any tradable item to be evaluated and priced. A market emerges more or less spontaneously or is constructed deliberately by human interaction in order to enable the exchange of rights (cf. ownership) of services and goods.

The historical origin of markets is the physical marketplaces which would often develop into small communities, towns and cities.[citation needed]

This text uses material from Wikipedia, licensed under CC BY-SA