Discuss How a Primary Key, Candidate Key, and Composite Key

question 38

Essay

Discuss how a primary key, candidate key, and composite key are related.

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Definitions:

Heckscher-Ohlin

A trade theory that suggests countries will export goods that utilize their abundant and cheap factors of production and import goods that utilize the countries' scarce factors.

Ricardian Trade Theory

An economic theory that suggests international trade is driven by comparative advantage, leading countries to specialize in the production of goods they can produce most efficiently.

International Product Life Cycle

A theory that suggests that the level of trade in a product at any given time is a function of the current stage in the product’s life cycle, in which the life cycle consists of introduction, maturity, standardization, and decline.

Introduction Stage

The initial phase in the life cycle of a product or service where it is first launched into the market, characterized by promotional activity and gradual growth in sales.