130 RATES AND TAXES 



mobility of the respective capitals ; it is a 

 contest between two sorts of profits, or an 

 adjustment of two sorts of losses. 



This leads to another qualification of the 

 ordinary theory. That theory expresses a 

 tendency that is true only in the long 

 run and in the absence of disturbing causes. 

 It really assumes a stationary set of con- 

 ditions, such as a normal rate of profit 

 in agriculture, as compared with other 

 industries. Owing to the agreeableness of 

 the employment and the economies in some 

 ordinary expenses of the household, the rate 

 to be expected in agriculture ought to be 

 put much lower than the rate in other 

 industries. For the sake of clearness, we 

 will suppose that if in ordinary trade 

 capital yields ten per cent., in agriculture 

 it will only yield five or six, if ordinary 

 expectations are realised. Still, whatever 

 the difference may be, it is supposed that 



