Which factor is NOT listed as affecting supply?

In this context, the correct answer identifies the factor that is not typically considered a direct influence on supply. Supply is primarily concerned with the various resources and conditions that affect the production and availability of goods or services in a market.

Land costs, construction methods, and local government building codes are all directly related to the physical and regulatory aspects of producing goods. Land costs can impact the overall expense of acquiring property for development, construction refers to the actual process of building or manufacturing, and local government building codes dictate the standards and regulations for construction projects, which can affect the feasibility and timing of supplying goods.

Availability of credit, while it can influence the ability to finance projects and thus indirectly affect supply, is not a direct factor in the operational sense of supply production. It pertains more to the financial aspect of acquiring the necessary capital for projects rather than the physical aspects of supply. Hence, it is correctly identified as the factor that is not traditionally categorized under those that directly affect supply.