D., an internationally recognized authority on attention deficit hyperactivity disorder (ADHD or ADD) in children and adults who has dedicated his career to widely disseminating science-based information about ADHD. Barkley is a Clinical Professor of Psychiatry, Virginia Treatment Center for Children and Virginia Commonwealth University Medical Center, Richmond, VA.Your browser is not currently configured to accept cookies from this website.In economics an externality is a by-product of a production process that imposes burdens (or supplies benefits), to parties other than the intended consumer of a commodity.For example; air and water pollution are ‘negative’ externalities which impose burdens on society and the environment.Attention is used to filter out the most important information by the human brain from a large pool of information surrounding the human in the digital age.
This evolved from an article on the Federal Communications Commission (Coase 1959), in which Coase claimed that radio frequency interference is a negative externality that could be controlled by the creation of property rights.
One way this might be implemented is by charging senders a small fee per e-mail sent, often referred to as a "Sender Bond." It might be close to free for an advertiser to send a single e-mail message to a single recipient, but sending that same e-mail to 1000 recipients would cost him 1000 times as much.
A 2002 experiment with this kind of usage-based e-mail pricing found that it caused senders to spend more effort targeting their messages to recipients who would find them relevant, thus shifting the cost of deciding whether a given e-mail message is relevant from the recipient to the sender (Kraut 2002).
Dedicating too much attention to these interactions can lead to "social interaction overload", i.e.
when people are overwhelmed in managing their relationships with others, for instance in the context of social network services in which people are the subject of a high level of social solicitations.