Quite apart from the economic similarity between present-day automation and the mechanization, which has been proceeding for centuries, it must also be stressed that even in the United State, automation is by no means the only factor ___(1)___ people from existing jobs. The increasing number of unneeded workers in ___(2)___ years has been the result of much more simple and old-fashioned influences: farm laborers have been ___(3)___ out of work by bigger tractors, miners by the cheapness of oil, and railway-men by better roads. It is quite wrong, therefore, to think of automation as some new monster whose arrival ___(4)___ the existence of employment in the same way that the arrival of myxomatosis threatened the existence of the rabbit. Automation is one ___(5)___ of technological changes (changes in tastes, changes in social patterns, changes in organization) which ___(6)___ in certain jobs disappearing and certain skills ceasing to be required. And even in America, which has a level of technology and output per ___(7)___ much in ___(8)___ of Britain’s, there is no ___(9)___ that the ___(10)___ of change is actually speeding up. Nevertheless changes in the amount of labor needed to produce a certain output are proceeding fairly rapidly in America – and in other countries – and may proceed more rapidly in future. Indeed it is one of the main objects of economic policy.