Forecasting

Site: Saylor Academy
Course: BUS606: Operations and Supply Chain Management
Book: Forecasting
Printed by: Guest user
Date: Thursday, October 17, 2024, 11:04 PM

Description

Forecasting can be thought of as making predictions based on historical and current data to anticipate future needs. Quantitative forecasting is accomplished through objective numerical data and statistical analysis. In contrast, qualitative forecasting makes predictions using subjective knowledge guided by expertise or past experience.

This page gives a simple overview of both quantitative and qualitative methods. Study the forecasting diagram as it displays a visual representation of forecasting. When is it appropriate to use a qualitative forecast? A quantitative forecast?

Forecasting

Forecasting is the process of making statements about expected future events, based upon evidence, research, and experience.


LEARNING OBJECTIVE

  • Demonstrate the value and role of effective forecasting in the development of successful strategies.


KEY POINTS

  • An important aspect of forecasting is the relationship it holds with planning. Forecasting can be described as predicting what the future will look like, whereas planning predicts what the future should look like.
  • As part of the implementation of policies and strategies, the forecasting method develops a reliable picture of the company's expected future environment.
  • Quantitative forecasting generally employs statistical confidence intervals and historical data to project potential future trends that are based upon the criteria being analyzed.
  • Qualitative approaches are the opposite: they rely on logical premises, expertise, or past experience to generate estimates of future circumstances.
  • Forecasting enables a manager to look at the current environment and identify likely scenarios, each of which may require a deviation from the overall strategy.


TERMS

  • scenario

    An outline or model of an expected or supposed sequence of events.

  • forecast

    An estimation of a future condition.

  • planning

    The act of formulating a course of action or of drawing up plans.

Forecasting is the process of making statements about expected future events based upon evidence, research, and experience. For example, a business might estimate the exchange rate between the U.S. and the EU one year from now to determine the real financial cost of a project.

An important and often overlooked aspect of forecasting is the relationship it holds with planning. Forecasting can be described as predicting what the future will look like, whereas planning predicts what the future should look like. While both are managerial functions, forecasting is rife with external uncertainty while planning is hindered by internal uncertainty.


Source: Boundless, http://oer2go.org/mods/en-boundless/www.boundless.com/management/textbooks/boundless-management-textbook/strategic-management-12/internal-analysis-inputs-to-strategy-88/forecasting-428-883/index.html
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Forecasting Methods

Forecasting can be accomplished in a variety of different ways, some more statistically reliable than others. Following are a few critical points of differentiation and specific strategies to keep in mind when forecasting.


Quantitative vs. Qualitative

One of the simplest points of differentiation between methods is the reliance on numbers for accuracy. Quantitative forecasting generally uses statistical confidence intervals and historical data to project potential future trends that are based upon the criteria being analyzed. In this format, results are expressed in certainty intervals (i.e., how confident can we be that this will be the case?) and often rely on financial data (exchange rates, industry growth, etc.).

Qualitative approaches are the opposite; they rely on logical premises or past experience to generate estimates about future circumstances. The inherent problem with the qualitative approach is simple: subjectivity. While quantitative measure use data to express objective results, qualitative approaches do not have this luxury. Generally this type of forecast will include the opinions of experts, upper management, and market research.


Causal Forecasting

Another method of forecasting, which is likely to be both quantitative and qualitative, is the causal/econometric approach. This strategy tasks managers with identifying cause and effect relationships of past instances by defining a series of if/then statements that express the likelihood of the outcome which follows. For example, if consumer spending is down in Q2, then it is likely that gross domestic product (GDP) growth will be down in Q3. Whether or not this is true would have to be supported with data, but the forecast is that Q2 consumer spending results could forecast Q3 GDP growth.


Implications of Forecasting

Keeping these methods in mind, it is important to understand how management uses these forecasts to draw conclusions. Forecasting plays a role in the implementation of policies and strategies. The practice helps businesses create plans for different situations, in addition to contingency plans for adapting if and when necessary.

Forecasting enables a manager to look at the current environment and identify likely scenarios, each of which may require a deviation from the overall strategy. As the management team implements the broader strategy, it must continuously monitor the current environment for deviations and use forecasting to adapt both the primary strategy and contingency plans for potential shifts.

To summarize, forecasts enable businesses to prepare new strategies or reinforce the existing strategy, based upon the projections made.