The Lophophore. the Phoronida. The lophophore can most easily be described as a ring of tentacles, but it is often horseshoe-shaped or coiled. Phoronids have their lophophores in plain view, as shown above, but brachiopods like the one below must be opened wide in order to get a good view of their lophophore.
Definition. The effect of aggregate supply and demand in a market environment on the prices of goods and services. Market forces will cause prices to increase when supply decreases or demand increases, whereas prices will fall when demand decreases or supply increases.
Although neoclassical economics suggest the most important forces in the market are the forces that move the price to equilibrium, other forces that shift the curves are also recognized. Figure 6, shows the affect of an increase in demand and a decrease in supply.Figure 6, Increase in demand and a decrease in supply. In figure 6, the first diagram on the left, shows an increase in demand with the new demand curve shifted to the right.he supply and demand mechanism (the economic model) besides being the natural consequences of economic forces provides the most efficient economic outcomes possible. Satisfaction for society is maximized, at minimum cost.