PEST analysis
In business analysis, PEST analysis ("political, economic, socio-cultural and technological") describes a framework of macro-environmental factors used in the environmental scanning component of strategic management. It is part of an external environment analysis when conducting a strategic analysis or doing market research, and gives an overview of the different macro-environmental factors to be taken into consideration. It is a strategic tool for understanding market growth or decline, business position, potential and direction for operations.
PEST analysis was developed in 1967 by Aguilar as an environmental scanning framework.[1] Aguilar argued that firms must scan the economic, technical, political and social categories (ETPS) that may affect strategy, defining environmental scanning as follows, “scanning for information about events and relationships in a company’s outside environment, the knowledge of which would assist top management in its task of charting the company’s future course of action.”[1]
The basic PEST analysis includes four factors:
Variants that build on the PEST framework include:
Applicability of the factors[edit]
The model's factors will vary in importance to a given company based on its industry and the goods it produces. For example, consumer and B2B companies tend to be more affected by the social factors, while a global defense contractor would tend to be more affected by political factors. Additionally, factors that are more likely to change in the future or more relevant to a given company will carry greater importance. For example, a company which has borrowed heavily will need to focus more on the economic factors (especially interest rates). Furthermore, conglomerate companies who produce a wide range of products (such as Sony, Disney, or BP) may find it more useful to analyze one department of its company at a time with the PESTEL model, thus focusing on the specific factors relevant to that one department. A company may also wish to divide factors into geographical relevance, such as local, national, and global.
Limitations[edit]
Whereas the PEST analysis is broadly used in business practice, critics argue that it has limitations. PEST analysis can be helpful to explain market changes in the past, but it is not always suitable to predict or foresee upcoming market changes.[18] The reason is that PEST analysis offers a broad range of categories that can be deceivingly simple because they lack specific criteria about what exactly catalyses disruption. In other words, the PEST analysis does not offer guidelines for what to emphasise and what not to emphasise within the categories. As a result, firms can be blindsided by disruptions that cannot be neatly defined within the categories.[18]