What type of cooperative consists of workers operating together to achieve common goals?

A worker cooperative is a type of cooperative where the members, who are also the workers, collectively own and manage the business. The key characteristic of a worker cooperative is that it emphasizes democratic decision-making, allowing workers to have a say in the operations and direction of the business. This structure aims to align the interests of the workers with the goals of the organization, as they directly benefit from the success of the cooperative and are motivated to work towards common goals.

In contrast, a producer cooperative is primarily focused on helping producers or manufacturers pool their resources to enhance production capabilities and sales, which does not emphasize worker ownership in the same way. A consumer cooperative is designed to meet the needs of its members who are consumers, and thus focuses on purchasing power rather than worker management. A union is an organization that represents workers in negotiations with employers but is not a cooperative business model itself. These distinctions illustrate why the worker cooperative is the correct answer for this question, where the emphasis is on workers collaborating to achieve shared objectives.