Okay, I need to create a Wikipedia-style document about B2B under the categories of Economy, Market and Business, and Business Models. Let me start by understanding what's required.

First, the structure: H1 for the title, an overview section, several sections with H2 and H3, and maybe references or related documents. The content needs to be accurate, objective, detailed enough, easy to read, and use professional terms with explanations. Also, markdown formatting with proper headings, lists, tables, code blocks if needed, and at least 800 characters.

Starting with the title. It should be "B2B" as per the user's instruction. Then an overview section explaining what B2B is, maybe a brief definition. Next sections could include types of B2B models, key characteristics, examples, challenges, and benefits. Maybe also compare B2B vs B2C.

Wait, the user mentioned "비즈니스 모델" (business model) as the subcategory, so I should focus on business models rather than just B2B in general. So maybe structure it around different B2B business models, their features, examples, etc.

Need to make sure each section has H2 and H3 headings. For example, under "B2B 비즈니스 모델의 주요 유형" (Main Types of B2B Business Models), there could be sub-sections like Direct Sales, Subscription-Based, Platform-Based, etc., each with their own H3.

Also, include examples for each model to illustrate. Maybe a table comparing different models? Or bullet points. Need to check if that's appropriate.

For the challenges and benefits section, maybe list them as bullet points under an H2 heading. Also, ensure that technical terms are explained. For instance, "Subscription-Based" might need a brief explanation of what it means in B2B context.

I should verify some facts: What are common B2B business models? Direct sales, subscription, platform, licensing, etc. Examples like Salesforce (subscription), Amazon Business (platform), IBM's software licensing.

Need to make sure the content is accurate. Also, check for any recent trends or changes in B2B models, but since it's a general overview, maybe stick to established models unless specified otherwise.

Avoid markdown syntax in the thinking process, but when writing the actual document, use proper headings, lists, etc. Also, ensure that the total length is over 800 characters. Let me count: each section should be sufficiently detailed. Maybe start drafting each part step by step.