Data itself can be thought of as an energetic phenomenon that links us in our capacity as knowing subjects to an external physical world. - Max Boisot

Following the lead given by new institutional economics, we shall take the transaction as our unit of analysis. For our purposes, a transaction can be thought of as any act of social exchange that depends on information flows for its accomplishment. Transactions can be as simple and brief as the purchase of a packet of cigarettes, or as complex as and extended as those which bind a Zen master to his disciples. Like institutional economists, we are interested in the relationship that can be established between different transactional characteristics and the phenomenon of institutionalization. Our use of the term transaction, however, will extend beyond that of institutional economics where the focus has tended to be primarily on transaction costs and efficiency considerations. These, to be sure, are relevant. But, as we shall see, they are not the whole story.

We shall also concern ourselves with the institutional order built up from transactions, but our focus will be less narrowly economic than the one adopted by Williamson. Like him, we shall argue that institutional structures aim partly at achieving transactional efficiencies and that where such efficiencies are effectively achieved they act somewhat like a magnetic field – a mathematician would call them ‘attractors’ – drawing the uncommitted transaction into a given institutional orbit. Yet in contrast to Williamson’s, our concept of transactions is underpinned by an explicit rather than an implicit theory of information production and exchange which yields a different way of classifying them as well as a distinctive approach to their governance. We find ourselves in consequence in the realm of political economy rather than of economics tout court.

Data is discrimination between physical states of things (black, white, etc.) that may convey or not convey information to an agent. Whether it does so or not depends on the agent's prior stock of knowledge.