Firms tend to offer discounts for very long lists of factors, including age, occupation, and membership in associations. Firms tend to offer discounts for very long lists of factors, including age, occupation, and membership in associations. Firms tend to offer discounts for very long lists of factors, including age, occupation, and membership in associations. Firms tend to offer discounts for very long lists of factors, including age, occupation, and membership in associations. Firms tend to offer discounts for very long lists of factors, including age, occupation, and membership in associations. Firms tend to offer discounts for very long lists of factors, including age, occupation, and membership in associations. Firms tend to offer discounts for very long lists of factors, including age, occupation, and membership in associations.