Before a firm is allowed access to the European marketplace, the European Union requires that the quality of the firm’s manufacturing processes and products be certified under a quality standard known as

ISO 9000

Explanation:

In this question, the quality of standard being mentioned is known as the ISO 9000. This is a set of standards that helps organizations make sure that they are meeting the customer and shareholder needs as well as complying to the statutory and regulatory requirements that exist regarding the product or service. This is the main quality of standards that are enforced and required by the European Union for every firm in its marketplace.

answer; lags, push the econ below the natural level of output;