Professional Services
Professional services firms (e.g., law, consulting, accounting firms, advertising agencies) deliver products that are almost entirely dependent upon the quality of the employees. Unlike travel, communications, and other services, the quality of the product delivered is a combination of a number of factors-not only the people involved but the underlying technology (quality of the digital cellular connection), equipment (aircraft used), and so on. While barriers to entry are high, intangibility of the product is still a problem as is the inseparability of production and consumption, to some extent, as clients have to participate in the creation of tax returns, consulting reports, and other products of professional service firms.
A high overall level of technical...