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50 Cards in this Set
- Front
- Back
Forecasting
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Art and science of predicting future events
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Future time Horizons
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Short-range forecast, Medium range, long-range.
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Short-range
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Span up to 1 year, used for planning purchasing, job scheduling, workforce levels, job assisgnments, and production levels
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Medium-range
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Spans from 3 months to 3 years. Useful in sales planning, production planning and budgeting, cash budgeting, and analyzing operating plans
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Long-range
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3 years or more, planning new products, capital expenditures, facility location or expansion, R&D
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Intermediate and long run forecasts
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Deal with more comprehensive issues and support management decisions
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Short Term forecasting
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Employs different methodologies. (moving averages, exponential smoothing, and trend extrapolation)
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Short-range forecasting
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Tend to be more accurate than longer-range forecasts.
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Product Life Cycles
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Introduction, growth, maturity, decline
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Type of forecasts
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Economic, technological, demand
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Strategic important of forecasting
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human resources, capacity, supply-chain management.
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Seven steps in forecasting
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Determing the use of the forecast
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Select the items to be forecasted
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Determine the time horizon of the forecast
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Select the forecasting models
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Gather the data
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Make the forecast
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Validate and implement results
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Realties
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Forecast are seldom perfect, most techniques assume an uderlying stability in the system, product family and aggregated forecasts are more accurate than individual product forecasts.
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Qualitative approach
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Decisions maker's intuition, emotions, personal experiences, and value system in reaching a forecast
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Quantitative approach
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variety of mathematical models that rely on historical data.
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Qualitative methods
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Jury of executive opinion - pool opinions of high-level executives
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Delphi Method
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- panel of experts
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Sales force composite
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Based on salespersons' estimates of expected sales
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Consumer market survey
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Forecasting method that solicits input from customers
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Quantitative Methods
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Naive approach, moving averages, exponential smoothing, trend projection, linear regression.
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Naive approach
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assumes next period is the same as next
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The forecasting time horizon that would typically be easiest to predict for would be the
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short-range
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A forecast that projects a company's sales is a(n)
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demand forecast
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Quantitative methods of forecasting include
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exponential smoothing
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The method that considers several variables that are related to the variable being predicted is
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multiple regression
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The forecasting model that is based upon salesperson's estimates of expected sales is
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sales force composite
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Decomposing a time series refers to breaking down past data into the components of
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trends, cycles, seasonal and random variations
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Realties
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Forecast are seldom perfect, most techniques assume an uderlying stability in the system, product family and aggregated forecasts are more accurate than individual product forecasts.
|
|
Qualitative approach
|
Decisions maker's intuition, emotions, personal experiences, and value system in reaching a forecast
|
|
Quantitative approach
|
variety of mathematical models that rely on historical data.
|
|
Qualitative methods
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Jury of executive opinion - pool opinions of high-level executives
|
|
Delphi Method
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- panel of experts
|
|
Sales force composite
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Based on salespersons' estimates of expected sales
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|
Consumer market survey
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Forecasting method that solicits input from customers
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|
Quantitative Methods
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Naive approach, moving averages, exponential smoothing, trend projection, linear regression.
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Naive approach
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assumes next period is the same as next
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The forecasting time horizon that would typically be easiest to predict for would be the
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short-range
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A forecast that projects a company's sales is a(n)
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demand forecast
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Quantitative methods of forecasting include
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exponential smoothing
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The method that considers several variables that are related to the variable being predicted is
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multiple regression
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The forecasting model that is based upon salesperson's estimates of expected sales is
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sales force composite
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Decomposing a time series refers to breaking down past data into the components of
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trends, cycles, seasonal and random variations
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With regard to regression-based forecast, the standard error of the estimate gives a measure of
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the variability around the regression line
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When using exponential smoothing, the smoothing constant
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is typically between .05 and .50 for most business applications
indicates the amount of weight placed on the most recent period can be determined using MAD |
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Exponential smoothing is most similar to
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the weighted moving average method of forecasting
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Time series patterns that repeat themselves after a period of days or weeks are called
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seasonality
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Which of the following is not a time-series model?
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linear regression
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