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PPP Framework

PPP Features, PPP Frame, PPP Framework, PPP FAQ

DEFINITION - PPP (Point-to-Point Protocol) is a protocol for communication between two computers using a serial interface, typically a personal computer connected by phone line to a server. For example, your Internet server provider may provide you with a PPP connection so that the provider's server can respond to your requests, pass them on to the Internet, and forward your requested Internet responses back to you. PPP uses the Internet protocol (IP) (and is designed to handle others). It is sometimes considered a member of the TCP/IP suite of protocols. Relative to the Open Systems Interconnection (OSI) reference model, PPP provides layer 2 (data-link layer) service. Essentially, it packages your computer's TCP/IP packets and forwards them to the server where they can actually be put on the Internet.

PPP is a full-duplex protocol that can be used on various physical media, including twisted pair or fiber optic lines or satellite transmission. It uses a variation of High Speed Data Link Control (HDLC) for packet encapsulation.

PPP is usually preferred over the earlier de facto standard Serial Line Internet Protocol (SLIP) because it can handle synchronous as well as asynchronous communication. PPP can share a line with other users and it has error detection that SLIP lacks. Where a choice is possible, PPP is preferred.  More details found here PPP FAQ and PPF

Purchasing power parity (PPP) Facts

Purchasing power parity (PPP) theory was developed by Gustav Cassel in 1920. It is the method of using the long-run equilibrium exchange rate of two currencies to equalize the currencies' purchasing power. It is based on the law of one price, the idea that, in an efficient market, identical goods must have only one price. Some PPP Facts here PPP Facts

Public-private partnership FAQ

Public-private partnership (PPP) is a system in which a government service or private business venture is funded and operated through a partnership of government and one or more private sector companies. These schemes are sometimes referred to as PPP or P3. P-P Partnership

Production possibilities frontier

In economics, a production possibilities curve (PPC) or “transformation curve” is a graph that shows the different quantities of two goods that an economy can produce (if it uses its limited productive resources efficiently). Points along the curve describe the trade-off between the two goods. In principle the curve can apply to any two goods. In practice it is frequently used as a simplification to illustrate a 2-good economy. The point it makes carries over to the more realistic case of an economy with many goods.

A brief statement of the PPC is the following. Consider a 2-good economy, producting Computers and Food with given labor, land, and capital that are already being used efficiently. Then increasing production of Food requires transferring some resources used in production of Computers. This reduces production of Computers. More details see PPF

 

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