The document discusses how the modern economy and businesses operate in a "LinkedIn economy" where: 1) Knowledge workers have skills but not permanent ties to any single employer due to increased mobility and changing jobs frequently. 2) Companies can harness this by becoming "LinkedIn companies" that connect with employees as partners, encourage networking internally and externally, and understand that value is created through open communication. 3) In this economy, profit is gained when companies encourage employees to innovate and cut costs to build their careers and the company's bottom line, by investing emotionally in the employee-company relationship.