Commerce refers to trade or business, specifically the buying and selling of goods and services. Ecommerce refers to buying and selling online through electronic data transfer and payment. The document describes common ecommerce business models: Business to Consumer (B2C) where businesses sell to individuals, Consumer to Business (C2B) where individuals sell to businesses, Business to Business (B2B) where businesses sell to other businesses, and Consumer to Consumer (C2C) where individuals sell to each other. It also discusses Business to Administration (B2A) and Consumer to Administration (C2A) models involving government. Examples are provided for each model type.

1. What is Commerce & Ecommerce?
Commerce: is another word for trade or business, and can
mean simply the buying and selling of goods and services.
Ecommerce: also known as electronic commerce or
internet commerce, refers to the buying and selling of
goods or services using internet, and the transfer of money
and data to execute these transactions.

2. Types of Ecommerce Models
Commonly use Business Models
Business to Consumer(B2C)
Consumer to Business(C2B)
Business to Business(B2B)
Consumer to Consumer(C2C)
Business to Administration(B2A)
Consumer to Administration(C2A)

3. Business to Consumer(B2C)
• Means sale of goods and services to the general public. In this, customers or
consumers can visit the website and purchase the goods online through Credit
card or Debit card. E.g. Amazon, Nykaa, Myntra etc

4. Consumer to Business(C2B)
• It is the complete reverse of B2C. In this type of a business model, the consumer
can sale goods and services directly to any business organization via the website.
E.g. Freelancing sites like Fiverr, Shutter stock, Freelancer as the services or
products are being rendered by Customers (freelancers) to the business
organizations.

5. Business to Business(B2B)
• Means the exchange of products, services, or information between two business.
In other words the transaction between businesses, such as one involving a
manufacture and wholesaler, or a wholesaler and a retailer. E.g. Alibaba, Walmart
Indiamart etc.

6. Consumer to Consumer(C2C)
• The exchange of products and services among consumers. Or in simple words we
can say a consumer sells a product to another consumer through digital platforms.
C2C is also called C2B2C because the deal is done between the consumers but
through the business organization. E.g. OLX,UBER ,OLA and Ebay etc.

7. Business to Administration(B2A)
• B2A is also known as B2G(Business to Government). It means when exchange of
transactions conducted online between companies and public administration or
government bodies . Many branches of government are dependent on e-services
when it comes to legal documents, social security, fiscals and employment etc.
E.g. Accela, BHIM etc.

8. Consumer to Administration(C2A)
• This type of business model encompasses electronic transactions online between
the individuals and the public administration. It provides an easy way to establish
communication between the consumers and the government. E.g. a-voting, e-
democracy and e-health etc.

9. Ecommerce market share in India
Ecommerce market value & projected growth(2014 -2027)
Source: Statista.com