Marketing Research
Internal Research
stocks analysis
company accounts
retail data
reports
External Research
media reports
commercial data
trade publications
government data
in-house expenditure data
Purpose
planning
market trends
risk management
strategy assessment
identify customer needs
Preliminary Research
portal surveys
online feedback
test markets
telephone surveys
observation
documents analysis
Methods
random sample
quota sample
cluster sample
snowball sample
multi-stage sample
segment random sample