1.   That is, the rate of substitution equals the neutral mutation rate.

2.   The two phases are in dynamic equilibrium when the rate of evaporation equals the rate of condensation.

3.   For example, when the rate of the following reaction, equals the rate of the reverse of this reaction, the system is in dynamic equilibrium.

4.   In other words, the real wage rate equals output per worker minus real profits per worker.

5.   That is true in the case of hepatitis B, he said, even though new treatments have produced long-term success rates equal to overall rates for liver transplants.

6.   The new rate equals the current black market rate.