  A network effect is introduced taking into account competition, cooperation
and mixed-type interaction amongst agents along a generalized
Verhulst-Lotka-Volterra model. It is also argued that the presence of a market
capacity enforces an indubious limit on the agent's size growth. The state
stability of triadic agents, i.e., the most basic network plaquette, is
investigated analytically for possible scenarios, through a fixed point
analysis. It is discovered that: (i) \market" demand is only satisfied for full
competition when one agent monopolizes the market; (ii) growth of agent size is
encouraged in full cooperation; (iii) collaboration amongst agents to compete
against one single agent may result in the disappearance of this single agent
out of the market, and (iv) cooperating with two rivals may become a growth
strategy for an intelligent agent.
