Robbins Mgmt 9ce Ch05

Chapter 5, Stephen P. Robbins, Mary Coulter, and Nancy Langton, Management, Ninth Canadian EditionCopyright © 2009 Pearson Education Canada 5-1

Chapter 5

Decision Making


Learning Outline After you read this chapter you should know the following

learning objectives:

• #1: What are the steps in the decision- making process?

• #2: What factors affect how decisions are made?

• #3: How can managers make more effective decisions?


Decision Making

• Decision

– Making a choice from two or more alternatives

• The Decision-Making Process

– Identifying a problem and decision criteria and allocating weights to the criteria

– Developing, analyzing, and selecting an alternative that can resolve the problem

– Implementing the selected alternative

– Evaluating the decision’s effectiveness


Exhibit 5.1 The

Decision-Making Process

Identifya

Problem

“I need to decide the bestfranchise to purchase.”

IdentifyDecisionCriteria

• Financial qualifications• Franchisor history• Start-up costs• Open geographical locations• Franchisor support

AllocateWeights

to Criteria

Start-up costsFranchisor supportFinancial qualificationsOpen geographical locationsFranchisor history

.......................................................10................................................7

.........................................8...............................6

..................................................7

DevelopAlternatives

Curves for WomenSecond CupJani-KingLiberty Tax Service

Merle NormanPetlandChem-Dry Carpet CleaningMcDonald’s





AnalyzeAlternatives

Selectan

Alternative

Implementthe

Alternative“Chem-Dry Carpet Cleaning!”

EvaluateDecision Effectiveness


Step 1: Identification of a Problem

• Problem

– A discrepancy between an existing and desired state of affairs

• Characteristics of Problems

– A problem becomes a problem when a manager becomes aware of it

– There is pressure to solve the problem

– The manager must have the authority, information, or resources needed to solve the problem


Step 2: Identification of Decision Criteria• Decision criteria are factors that are important (relevant)

to resolving the problem:– Costs that will be incurred (investments required)

– Risks likely to be encountered (chance of failure)

– Outcomes that are desired (growth of the firm)

Step 3: Allocation of Weights to Criteria• Decision criteria are not of equal importance:

– Assigning a weight to each item places the items in the correct priority order of their importance in the decision- making process


Step 4: Development of Alternatives

• Identifying viable alternatives– Alternatives are listed (without evaluation) that

can resolve the problem

Step 5: Analysis of Alternatives

• Appraising each alternative’s strengths and weaknesses– An alternative’s appraisal is based on its ability to resolve

the issues identified in steps 2 and 3.


Exhibit 5.3 Evaluation Using Decision Criteria


Exhibit 5.4 Evaluation Against Weighted Criteria


Step 6: Selection of an Alternative

• Choosing the best alternative– The alternative with the highest total weight is

chosen

Step 7: Implementation of the Alternative

• Putting the chosen alternative into action– Conveying the decision to and gaining commitment from

those who will carry out the decision


Step 8: Evaluation of Decision Effectiveness

• The soundness of the decision is judged by its outcomes:

– How effectively was the problem resolved by outcomes resulting from the chosen alternatives?

– If the problem was not resolved, what went wrong?


Exhibit 5-5 Decisions in Management Functions


Making Decisions• Rationality

– Managers make consistent, value-maximizing choices with specified constraints

– Assumptions are that decision makers:• Are perfectly rational, fully objective, and logical

• Have carefully defined the problem and identified all viable alternatives

• Have a clear and specific goal

• Will select the alternative that maximizes outcomes in the organization’s interests rather than in their personal interests


Exhibit 5.6 Assumptions of Rationality

• The problem is clear and unambiguous.• A single, well-defined goal is to be achieved.• All alternatives and consequences are known.• Preferences are clear.• Preferences are constant and stable.• No time or cost constraints exist.• Final choice will have maximize payoff.

Lead to

RationalDecisionMaking


Making Decisions

• Bounded Rationality– Managers make decisions rationally, but are

limited (bounded) by their ability to process information

– Assumes decision makers:• Will not seek out or have knowledge of all alternatives• Will satisfice

• Can be influenced by escalation of commitment


Making Decisions

• Role of Intuition– Intuitive decision making

• Making decisions on the basis of experience, feelings, and accumulated judgment

• One-third of managers and other employees said they emphasized “gut feeling” over cognitive problem solving


Exhibit 5.7 What Is Intuition?

Source: Based on L.A. Burke and M.K. Miller. “Taking the Mystery Out of Intuitive Decision Making.” Academy of Management Executive. October 1999. pp. 91–99.

Intuition

Experience-baseddecisions

Subconsciousmental processing

Values- or ethics-based decisions

Cognitive-baseddecisions

Affect-initiateddecisions

Managers makedecisions based on

ethical values or culture

Managers use data fromsubconscious mind to

help them make decisions

Managers makedecisions based onfeelings or emotions

Managers makedecisions based on skills,knowledge, and training

Managers makedecisions based ontheir past experiences


Types of Problems and Decisions

• Structured Problems– Have clear goals

– Are familiar

– Are easily and completely defined

• Programmed Decision– A repetitive decision that can be handled by a

routine approach


Types of Programmed Decisions

• A Procedure– A series of interrelated steps to respond to a

structured problem• A Rule

– An explicit statement that limits what a manager or employee can or cannot do

• A Policy– A general guideline for making a decision about

a structured problem


Problems and Decisions

• Unstructured Problems– Problems are new or unusual; information is

ambiguous or incomplete

• Non-programmed Decisions– Decisions are unique and nonrecurring; they

require custom-made solutions


Decision-Making Conditions

• Certainty– Accurate decisions possible because the outcome

of every alternative is known

• Risk– Decision maker estimates the likelihood of

outcomes that result from the choice of particular alternatives



• Uncertainty– Limited information prevents estimation of

outcome probabilities; may force managers to rely on intuition, hunches, and “gut feelings”

• Maximax: the optimistic manager’s choice to maximize the maximum payoff

• Maximin: the pessimistic manager’s choice to maximize the minimum payoff

• Minimax: the manager’s choice to minimize his maximum regret


Exhibit 5.8 Expected Value for Adding One Ski Lift

ExpectedExpected × Probability = Value of Each

Event Revenues Alternative

Heavy snowfall $850,000 0.3 = $255,000

Normal snowfall 725,000 0.5 = 362,500

Light snowfall 350,000 0.2 = 70,000$687,500


Exhibit 5.9 Payoff Matrix


Exhibit 5.10 Regret Matrix


Decision-Making Styles

• Dimensions of Decision-Making Styles– Ways of thinking

• Rational, orderly, and consistent

versus

• Intuitive, creative, and unique

– Tolerance for ambiguity• Low tolerance: require consistency and order

versus

• High tolerance: multiple thoughts simultaneously


Decision-Making Styles

• Types of Decision Makers– Directive

• Use minimal information and consider few alternatives

– Analytic• Make careful decisions in unique situations

– Conceptual• Maintain a broad outlook and consider many alternatives in

making long-term decisions

– Behavioural• Avoid conflict by working well with others and being

receptive to suggestions


Exhibit 5.11 Decision-Making Styles

Source: S.P. Robbins and D.A. DeCenzo, Supervision Today. 2nd ed. (Upper Saddle River, NJ: Prentice Hall, 1998), p. 166.

High

LowWay of Thinking

Rational Intuitive

To

lera

nce

Fo

r A

mb

igu

ity

Directive

Analytic Conceptual

Behavioural


Exhibit 5.13 Common Decision-Making Errors and Biases

Overconfidence

Availability

FramingRepresentation

ConfirmationRandomness

Selective PerceptionSunk Costs

Anchoring EffectSelf-serving

Immediate GratificationHindsight

Decision-MakingErrors and Biases


Decision-Making Biases and Errors

• Heuristics– Using “rules of thumb” to simplify decision

making

• Overconfidence Bias– Holding unrealistically positive views of one’s

self and one’s performance

• Immediate Gratification Bias– Choosing alternatives that offer immediate

rewards and avoid immediate costs



• Anchoring Effect– Fixating on initial information and ignoring later

information

• Selective Perception– Selecting, organizing, and interpreting events based on the

decision maker’s biased perceptions

• Confirmation Bias– Seeking out information that reaffirms past choices and

discounting contradictory information



• Framing Bias– Selecting and highlighting certain aspects of a situation

while ignoring other aspects

• Availability Bias– Losing decision-making objectivity by focusing on the

most recent events

• Representation Bias– Drawing analogies and seeing identical situations when

none exist

• Randomness Bias– Creating unfounded meaning out of random events



• Sunk Costs Errors– Forgetting that current actions cannot influence past

events and relate only to future consequences

• Self-serving Bias– Taking quick credit for successes and blaming outside

factors for failures

• Hindsight Bias– Mistakenly believing that an event could have been

predicted once the actual outcome is known (after-the-fact)


Exhibit 5.14 Overview of Managerial Decision Making

Decision

• Choosing best alternative - maximizing - satisficing• Implementing• Evaluating

Types of Problems and Decisions

• Well structured—programmed• Unstructured—nonprogrammed


• Certainty• Risk• Uncertainty

Decision-Making Approach

• Rationality• Bounded rationality• Intuition

Decision Maker’s Style

• Directive• Analytic• Conceptual• Behavioural

Decision-MakingProcess

Decision-MakingErrors and Biases


Decision Making for Today’s World

• Guidelines for making effective decisions:– Know when it’s time to call it quits

– Practice the five whys

– Be an effective decision maker

• Habits of highly reliable organizations (HROs):– Are not tricked by their success

– Defer to the experts on the front line

– Let unexpected circumstances provide the solution

– Embrace complexity

– Anticipate, but also anticipate their limits


Characteristics of an Effective Decision-Making Process

• Focuses on what is important

• Is logical and consistent

• Acknowledges both subjective and objective thinking and blends analytical with intuitive thinking

• Requires only as much information and analysis as is necessary

• Encourages and guides the gathering of relevant information and informed opinion

• Is straightforward, reliable, easy to use, and flexible


Summary and Implications

• What are the steps in the decision-making process?– Steps include: identifying a problem and the

decision criteria, allocating weights to those criteria, developing, analyzing, and selecting an alternative that can resolve the problem, implement the alternative and evaluate the decision’s effectiveness.


Summary and Implications

• What factors affect how decisions are made?– Not all decisions follow the rational decision

making model.

• How can managers make more effective decisions?– Managers need to think broadly and deeply about

issues, and then know when it is time to call it quits.

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Robbins Mgmt 9ce Ch05