Acode used to identify and authenticate a person or organization sending data over a network

A code used to identify and authenticate a person or organization sending data over a network is called digital certificate.
This electronic document is used to identify an individual, a server, a company, or some other entity and authenticates the Web credentials of the sender and lets the recipient of an encrypted message know that the data is from a trusted source.. The code is assigned by a certificate authority such as VeriSign and includes a public key for encryption.

The business cycle is the periodic but irregular up-and-down movement in economic activity, measured by fluctuations in real gross domestic product (gdp) and other macroeconomic variables. a business cycle is typically characterized by four phases—recession, recovery, growth, and decline—that repeat themselves over time. economists note, however, that complete business cycles vary in length. the duration of business cycles can be anywhere from about two to twelve years, with most cycles averaging six years in length. some business analysts use the business cycle model and terminology to study and explain fluctuations in business inventory and other individual elements of corporate operations. but the term "business cycle" is still primarily associated with larger (industry-wide, regional, national, or even international) business trends.