Marketing effects

Positive effects:

• Price competition
• Comparative information
• Service's and product's understanding by customers
• Attractions of customers
• Keeping customers
• Analyzing customers' needs
• Customers' satisfaction
• Positive attitudes towards the products
• Company's communications
• Amount of sales
• Consumers' and corporate's expectations
• Brand building
• Image
• Name recognition
• Phone calls, feedbacks 
• Frequency of purchasing
• Advertising efficiency

Negative effects:

• Lack of free choice
• Influence on subconsciousness
• Ascendancy in children
• Ethical disagreements in different countries, nations, cultures.