SlideShare une entreprise Scribd logo
1  sur  7
CONSUMER BEHAVIOUR AND RELATED TERMS
Consumer Behaviour
Ostrow and smith have defined consumer behaviour as action of
consumers in the market place and the underlying motives of those
actions.Marketing expects that by understanding what causes consumers
to buy particular goods and services, they will be able to determine what
product are needed in the Marketplace, what are obsolete and how best to
represent the required goods to the consumers.
it includes the study of what they buy, why they buy, when they bye, how
often they buy it, and how often they use it. The goal of studying consumer
behaviour is to satisfy their needs.
Consumer
At times the terms 'consumer' and customer' are used interchangeably. But the term
'consumer' is used to Represent situations where a product can be consumed and
customers is used to denote the situation where the product cannot be directly
consumed.
different types of consumers:
1. individual consumer- who buy goods, service, ideas, etc. for personal use or for
household use;
2. organisational/ business/ industrial consumers- who buy goods, services, ideas,
etc. for presenting them for the ultimate users including personal/ individual
consumers.
for example, if the purpose is to use furniture for self/ family, one acts as an individual
consumer. However, in the case of furniture purchased by the office, it is an
organisational purchase.
Buyer/ User
The term buyer refers to one who buys a product. But the buyer might not be
the user of a product. For example, Manika buys a shawl for her mother.
Manika if the buyer but her mother is the user of the shawl.
Consumer behaviour vs. consumption behaviour
consumer behaviour is a case of micro behaviour whereas consumption
behaviour is macro behaviour. In other words, consumer behaviour is to do
with an individual person while consumption behaviour with the mass or
aggregate of the individuals. consumer behaviour, as a study, focuses on the
decision process of the individual consumer of consuming units. In contrast,
consumption behaviour, as a study, is to do with explanation of the behaviour
of the aggregates of consumers or the consuming units, either at a given point
of time or over a period of time.
Consumer behaviour vs. Buyer behaviour
The sphere of consumer behaviour includes the activities of both
final and intermediate users. The former is called as end users
or ultimate users are consumers in true sense; while the
intermediate users are the industrial users who do not consume
the goods and services but add further value before they are
consumed by the final user.
The phrase ‘buying behaviour’ means the reference made to
both end users and intermediate users. Hence, the phrase
‘consumer behaviour’ includes only the end users and their
actions.
Blackwell, Miniard and Engel Have described the following five rules in the
buying decision making process:
1. Initiator : the person who begins the process of considering a purchase.
information may be gathered by this person to help the decision.
2. Influencer: the person who attempts to persuade others in the group
concerning the outcome of the decision. influencers typically gather
information and attempt to impose their choice criteria on the decision.
3. Decider: individual with power and authority to make the ultimate choice
regarding which product to buy.
4. Buyer : the person who conducts the transaction. The buyer calls the
suppliers, visits the store, makes the payment and effects delivery.
5. User: The actual consumer or user of the product
Importance of studying buying behaviour
1. Consumers do not always act or act as the theory would suggest- for
example, consumer Of the past reacted to price levels as if price and quality
had positive relations. today, consumer free value for money, less price but
with superior features.
2. Consumer preferences are changing and becoming highly diversified.
3. Consumer research has vividly pointed out that consumers dislike using
identical products and prefer differentiated products to reflect their special
needs, personality and Lifestyle.
4. Meeting of special needs of consumers requires market segmentation.
5. Rapid introduction of new products with technological advancement has made
the job of studying consumer behaviour more imperative.
6. Implementing the Marketing concept cause for studying the consumer
behaviour.
Bibliography
1. Chhabra, T.N.,Introduction to principles of marketing, Sun India publication
2. Philip Kotler

Contenu connexe

Similaire à STUDY MATERIAL PRINCIPLES OF MARKETING

Consumer Behavior . prepared by kar
Consumer Behavior . prepared by karConsumer Behavior . prepared by kar
Consumer Behavior . prepared by karSelva Rani
 
Microeconomics lecture.2
Microeconomics lecture.2Microeconomics lecture.2
Microeconomics lecture.2hasnain Qaudri
 
Research on tablet pc adoption model
Research on tablet pc adoption modelResearch on tablet pc adoption model
Research on tablet pc adoption modelarun savukar
 
Definition , nature , scope , applications of cb
Definition , nature , scope , applications of cbDefinition , nature , scope , applications of cb
Definition , nature , scope , applications of cbsaurabhmahajan54
 
Consumer Behaviour _E-Notes-1 (Introduction,Significance,Ethical Marketing,Co...
Consumer Behaviour _E-Notes-1 (Introduction,Significance,Ethical Marketing,Co...Consumer Behaviour _E-Notes-1 (Introduction,Significance,Ethical Marketing,Co...
Consumer Behaviour _E-Notes-1 (Introduction,Significance,Ethical Marketing,Co...Venkat. P
 
Unit 1.pptx
Unit 1.pptxUnit 1.pptx
Unit 1.pptxJeeta3
 
Introduction to consumer behavior
Introduction to consumer behaviorIntroduction to consumer behavior
Introduction to consumer behaviorbasava sn
 
Running head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docx
Running head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docxRunning head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docx
Running head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docxglendar3
 
Running head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docx
Running head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docxRunning head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docx
Running head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docxtodd581
 
Marketing Management module 3 uma k
Marketing Management module 3 uma kMarketing Management module 3 uma k
Marketing Management module 3 uma kDr UMA K
 
Analysing consumer buying behaviour and industrial buying behaviour
Analysing consumer buying behaviour and industrial buying behaviourAnalysing consumer buying behaviour and industrial buying behaviour
Analysing consumer buying behaviour and industrial buying behaviourSUJIT DAS
 
Consumer behavior all material Prepared by karventhan
Consumer behavior all material Prepared by karventhan Consumer behavior all material Prepared by karventhan
Consumer behavior all material Prepared by karventhan karventhanps
 
Buyer behaviour
Buyer behaviour Buyer behaviour
Buyer behaviour Dr Pooja
 
Consumer Behavior unit one.pptx
Consumer Behavior unit one.pptxConsumer Behavior unit one.pptx
Consumer Behavior unit one.pptxbipinkandel7
 

Similaire à STUDY MATERIAL PRINCIPLES OF MARKETING (20)

Consumer Behavior . prepared by kar
Consumer Behavior . prepared by karConsumer Behavior . prepared by kar
Consumer Behavior . prepared by kar
 
Microeconomics lecture.2
Microeconomics lecture.2Microeconomics lecture.2
Microeconomics lecture.2
 
Research on tablet pc adoption model
Research on tablet pc adoption modelResearch on tablet pc adoption model
Research on tablet pc adoption model
 
Consumer behaviour
Consumer behaviour Consumer behaviour
Consumer behaviour
 
Unit 1
Unit 1Unit 1
Unit 1
 
Definition , nature , scope , applications of cb
Definition , nature , scope , applications of cbDefinition , nature , scope , applications of cb
Definition , nature , scope , applications of cb
 
Consumer Behaviour _E-Notes-1 (Introduction,Significance,Ethical Marketing,Co...
Consumer Behaviour _E-Notes-1 (Introduction,Significance,Ethical Marketing,Co...Consumer Behaviour _E-Notes-1 (Introduction,Significance,Ethical Marketing,Co...
Consumer Behaviour _E-Notes-1 (Introduction,Significance,Ethical Marketing,Co...
 
Unit 1.pptx
Unit 1.pptxUnit 1.pptx
Unit 1.pptx
 
Consumer behaviour unit 2
Consumer behaviour unit 2Consumer behaviour unit 2
Consumer behaviour unit 2
 
Consumer behaviour unit 1
Consumer behaviour unit 1Consumer behaviour unit 1
Consumer behaviour unit 1
 
Introduction to consumer behavior
Introduction to consumer behaviorIntroduction to consumer behavior
Introduction to consumer behavior
 
Running head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docx
Running head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docxRunning head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docx
Running head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docx
 
Running head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docx
Running head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docxRunning head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docx
Running head PRINCIPLES OF MARKETING1PRINCIPLES OF MARKETING.docx
 
Cb notes
Cb notesCb notes
Cb notes
 
Marketing Management module 3 uma k
Marketing Management module 3 uma kMarketing Management module 3 uma k
Marketing Management module 3 uma k
 
Analysing consumer buying behaviour and industrial buying behaviour
Analysing consumer buying behaviour and industrial buying behaviourAnalysing consumer buying behaviour and industrial buying behaviour
Analysing consumer buying behaviour and industrial buying behaviour
 
For 604
For 604For 604
For 604
 
Consumer behavior all material Prepared by karventhan
Consumer behavior all material Prepared by karventhan Consumer behavior all material Prepared by karventhan
Consumer behavior all material Prepared by karventhan
 
Buyer behaviour
Buyer behaviour Buyer behaviour
Buyer behaviour
 
Consumer Behavior unit one.pptx
Consumer Behavior unit one.pptxConsumer Behavior unit one.pptx
Consumer Behavior unit one.pptx
 

Dernier

FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756dollysharma2066
 
John Halpern sued for sexual assault.pdf
John Halpern sued for sexual assault.pdfJohn Halpern sued for sexual assault.pdf
John Halpern sued for sexual assault.pdfAmzadHosen3
 
Monthly Social Media Update April 2024 pptx.pptx
Monthly Social Media Update April 2024 pptx.pptxMonthly Social Media Update April 2024 pptx.pptx
Monthly Social Media Update April 2024 pptx.pptxAndy Lambert
 
M.C Lodges -- Guest House in Jhang.
M.C Lodges --  Guest House in Jhang.M.C Lodges --  Guest House in Jhang.
M.C Lodges -- Guest House in Jhang.Aaiza Hassan
 
Call Girls in Gomti Nagar - 7388211116 - With room Service
Call Girls in Gomti Nagar - 7388211116  - With room ServiceCall Girls in Gomti Nagar - 7388211116  - With room Service
Call Girls in Gomti Nagar - 7388211116 - With room Servicediscovermytutordmt
 
HONOR Veterans Event Keynote by Michael Hawkins
HONOR Veterans Event Keynote by Michael HawkinsHONOR Veterans Event Keynote by Michael Hawkins
HONOR Veterans Event Keynote by Michael HawkinsMichael W. Hawkins
 
Regression analysis: Simple Linear Regression Multiple Linear Regression
Regression analysis:  Simple Linear Regression Multiple Linear RegressionRegression analysis:  Simple Linear Regression Multiple Linear Regression
Regression analysis: Simple Linear Regression Multiple Linear RegressionRavindra Nath Shukla
 
The Path to Product Excellence: Avoiding Common Pitfalls and Enhancing Commun...
The Path to Product Excellence: Avoiding Common Pitfalls and Enhancing Commun...The Path to Product Excellence: Avoiding Common Pitfalls and Enhancing Commun...
The Path to Product Excellence: Avoiding Common Pitfalls and Enhancing Commun...Aggregage
 
A DAY IN THE LIFE OF A SALESMAN / WOMAN
A DAY IN THE LIFE OF A  SALESMAN / WOMANA DAY IN THE LIFE OF A  SALESMAN / WOMAN
A DAY IN THE LIFE OF A SALESMAN / WOMANIlamathiKannappan
 
0183760ssssssssssssssssssssssssssss00101011 (27).pdf
0183760ssssssssssssssssssssssssssss00101011 (27).pdf0183760ssssssssssssssssssssssssssss00101011 (27).pdf
0183760ssssssssssssssssssssssssssss00101011 (27).pdfRenandantas16
 
Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...
Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...
Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...Lviv Startup Club
 
Dr. Admir Softic_ presentation_Green Club_ENG.pdf
Dr. Admir Softic_ presentation_Green Club_ENG.pdfDr. Admir Softic_ presentation_Green Club_ENG.pdf
Dr. Admir Softic_ presentation_Green Club_ENG.pdfAdmir Softic
 
Call Girls Electronic City Just Call 👗 7737669865 👗 Top Class Call Girl Servi...
Call Girls Electronic City Just Call 👗 7737669865 👗 Top Class Call Girl Servi...Call Girls Electronic City Just Call 👗 7737669865 👗 Top Class Call Girl Servi...
Call Girls Electronic City Just Call 👗 7737669865 👗 Top Class Call Girl Servi...amitlee9823
 
Call Girls In Panjim North Goa 9971646499 Genuine Service
Call Girls In Panjim North Goa 9971646499 Genuine ServiceCall Girls In Panjim North Goa 9971646499 Genuine Service
Call Girls In Panjim North Goa 9971646499 Genuine Serviceritikaroy0888
 
Best VIP Call Girls Noida Sector 40 Call Me: 8448380779
Best VIP Call Girls Noida Sector 40 Call Me: 8448380779Best VIP Call Girls Noida Sector 40 Call Me: 8448380779
Best VIP Call Girls Noida Sector 40 Call Me: 8448380779Delhi Call girls
 
Organizational Transformation Lead with Culture
Organizational Transformation Lead with CultureOrganizational Transformation Lead with Culture
Organizational Transformation Lead with CultureSeta Wicaksana
 
RSA Conference Exhibitor List 2024 - Exhibitors Data
RSA Conference Exhibitor List 2024 - Exhibitors DataRSA Conference Exhibitor List 2024 - Exhibitors Data
RSA Conference Exhibitor List 2024 - Exhibitors DataExhibitors Data
 
FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756dollysharma2066
 

Dernier (20)

FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Majnu Ka Tilla, Delhi Contact Us 8377877756
 
John Halpern sued for sexual assault.pdf
John Halpern sued for sexual assault.pdfJohn Halpern sued for sexual assault.pdf
John Halpern sued for sexual assault.pdf
 
Monthly Social Media Update April 2024 pptx.pptx
Monthly Social Media Update April 2024 pptx.pptxMonthly Social Media Update April 2024 pptx.pptx
Monthly Social Media Update April 2024 pptx.pptx
 
M.C Lodges -- Guest House in Jhang.
M.C Lodges --  Guest House in Jhang.M.C Lodges --  Guest House in Jhang.
M.C Lodges -- Guest House in Jhang.
 
Call Girls in Gomti Nagar - 7388211116 - With room Service
Call Girls in Gomti Nagar - 7388211116  - With room ServiceCall Girls in Gomti Nagar - 7388211116  - With room Service
Call Girls in Gomti Nagar - 7388211116 - With room Service
 
VVVIP Call Girls In Greater Kailash ➡️ Delhi ➡️ 9999965857 🚀 No Advance 24HRS...
VVVIP Call Girls In Greater Kailash ➡️ Delhi ➡️ 9999965857 🚀 No Advance 24HRS...VVVIP Call Girls In Greater Kailash ➡️ Delhi ➡️ 9999965857 🚀 No Advance 24HRS...
VVVIP Call Girls In Greater Kailash ➡️ Delhi ➡️ 9999965857 🚀 No Advance 24HRS...
 
HONOR Veterans Event Keynote by Michael Hawkins
HONOR Veterans Event Keynote by Michael HawkinsHONOR Veterans Event Keynote by Michael Hawkins
HONOR Veterans Event Keynote by Michael Hawkins
 
Regression analysis: Simple Linear Regression Multiple Linear Regression
Regression analysis:  Simple Linear Regression Multiple Linear RegressionRegression analysis:  Simple Linear Regression Multiple Linear Regression
Regression analysis: Simple Linear Regression Multiple Linear Regression
 
The Path to Product Excellence: Avoiding Common Pitfalls and Enhancing Commun...
The Path to Product Excellence: Avoiding Common Pitfalls and Enhancing Commun...The Path to Product Excellence: Avoiding Common Pitfalls and Enhancing Commun...
The Path to Product Excellence: Avoiding Common Pitfalls and Enhancing Commun...
 
A DAY IN THE LIFE OF A SALESMAN / WOMAN
A DAY IN THE LIFE OF A  SALESMAN / WOMANA DAY IN THE LIFE OF A  SALESMAN / WOMAN
A DAY IN THE LIFE OF A SALESMAN / WOMAN
 
0183760ssssssssssssssssssssssssssss00101011 (27).pdf
0183760ssssssssssssssssssssssssssss00101011 (27).pdf0183760ssssssssssssssssssssssssssss00101011 (27).pdf
0183760ssssssssssssssssssssssssssss00101011 (27).pdf
 
Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...
Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...
Yaroslav Rozhankivskyy: Три складові і три передумови максимальної продуктивн...
 
unwanted pregnancy Kit [+918133066128] Abortion Pills IN Dubai UAE Abudhabi
unwanted pregnancy Kit [+918133066128] Abortion Pills IN Dubai UAE Abudhabiunwanted pregnancy Kit [+918133066128] Abortion Pills IN Dubai UAE Abudhabi
unwanted pregnancy Kit [+918133066128] Abortion Pills IN Dubai UAE Abudhabi
 
Dr. Admir Softic_ presentation_Green Club_ENG.pdf
Dr. Admir Softic_ presentation_Green Club_ENG.pdfDr. Admir Softic_ presentation_Green Club_ENG.pdf
Dr. Admir Softic_ presentation_Green Club_ENG.pdf
 
Call Girls Electronic City Just Call 👗 7737669865 👗 Top Class Call Girl Servi...
Call Girls Electronic City Just Call 👗 7737669865 👗 Top Class Call Girl Servi...Call Girls Electronic City Just Call 👗 7737669865 👗 Top Class Call Girl Servi...
Call Girls Electronic City Just Call 👗 7737669865 👗 Top Class Call Girl Servi...
 
Call Girls In Panjim North Goa 9971646499 Genuine Service
Call Girls In Panjim North Goa 9971646499 Genuine ServiceCall Girls In Panjim North Goa 9971646499 Genuine Service
Call Girls In Panjim North Goa 9971646499 Genuine Service
 
Best VIP Call Girls Noida Sector 40 Call Me: 8448380779
Best VIP Call Girls Noida Sector 40 Call Me: 8448380779Best VIP Call Girls Noida Sector 40 Call Me: 8448380779
Best VIP Call Girls Noida Sector 40 Call Me: 8448380779
 
Organizational Transformation Lead with Culture
Organizational Transformation Lead with CultureOrganizational Transformation Lead with Culture
Organizational Transformation Lead with Culture
 
RSA Conference Exhibitor List 2024 - Exhibitors Data
RSA Conference Exhibitor List 2024 - Exhibitors DataRSA Conference Exhibitor List 2024 - Exhibitors Data
RSA Conference Exhibitor List 2024 - Exhibitors Data
 
FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756
 

STUDY MATERIAL PRINCIPLES OF MARKETING

  • 1. CONSUMER BEHAVIOUR AND RELATED TERMS Consumer Behaviour Ostrow and smith have defined consumer behaviour as action of consumers in the market place and the underlying motives of those actions.Marketing expects that by understanding what causes consumers to buy particular goods and services, they will be able to determine what product are needed in the Marketplace, what are obsolete and how best to represent the required goods to the consumers. it includes the study of what they buy, why they buy, when they bye, how often they buy it, and how often they use it. The goal of studying consumer behaviour is to satisfy their needs.
  • 2. Consumer At times the terms 'consumer' and customer' are used interchangeably. But the term 'consumer' is used to Represent situations where a product can be consumed and customers is used to denote the situation where the product cannot be directly consumed. different types of consumers: 1. individual consumer- who buy goods, service, ideas, etc. for personal use or for household use; 2. organisational/ business/ industrial consumers- who buy goods, services, ideas, etc. for presenting them for the ultimate users including personal/ individual consumers. for example, if the purpose is to use furniture for self/ family, one acts as an individual consumer. However, in the case of furniture purchased by the office, it is an organisational purchase.
  • 3. Buyer/ User The term buyer refers to one who buys a product. But the buyer might not be the user of a product. For example, Manika buys a shawl for her mother. Manika if the buyer but her mother is the user of the shawl. Consumer behaviour vs. consumption behaviour consumer behaviour is a case of micro behaviour whereas consumption behaviour is macro behaviour. In other words, consumer behaviour is to do with an individual person while consumption behaviour with the mass or aggregate of the individuals. consumer behaviour, as a study, focuses on the decision process of the individual consumer of consuming units. In contrast, consumption behaviour, as a study, is to do with explanation of the behaviour of the aggregates of consumers or the consuming units, either at a given point of time or over a period of time.
  • 4. Consumer behaviour vs. Buyer behaviour The sphere of consumer behaviour includes the activities of both final and intermediate users. The former is called as end users or ultimate users are consumers in true sense; while the intermediate users are the industrial users who do not consume the goods and services but add further value before they are consumed by the final user. The phrase ‘buying behaviour’ means the reference made to both end users and intermediate users. Hence, the phrase ‘consumer behaviour’ includes only the end users and their actions.
  • 5. Blackwell, Miniard and Engel Have described the following five rules in the buying decision making process: 1. Initiator : the person who begins the process of considering a purchase. information may be gathered by this person to help the decision. 2. Influencer: the person who attempts to persuade others in the group concerning the outcome of the decision. influencers typically gather information and attempt to impose their choice criteria on the decision. 3. Decider: individual with power and authority to make the ultimate choice regarding which product to buy. 4. Buyer : the person who conducts the transaction. The buyer calls the suppliers, visits the store, makes the payment and effects delivery. 5. User: The actual consumer or user of the product
  • 6. Importance of studying buying behaviour 1. Consumers do not always act or act as the theory would suggest- for example, consumer Of the past reacted to price levels as if price and quality had positive relations. today, consumer free value for money, less price but with superior features. 2. Consumer preferences are changing and becoming highly diversified. 3. Consumer research has vividly pointed out that consumers dislike using identical products and prefer differentiated products to reflect their special needs, personality and Lifestyle. 4. Meeting of special needs of consumers requires market segmentation. 5. Rapid introduction of new products with technological advancement has made the job of studying consumer behaviour more imperative. 6. Implementing the Marketing concept cause for studying the consumer behaviour.
  • 7. Bibliography 1. Chhabra, T.N.,Introduction to principles of marketing, Sun India publication 2. Philip Kotler