So just imagine comparing nations with each other in unemployment rates where the data that needs to be compared have no basis in common in political institutions, social institutions and economic structure. Unemployment is a simple concept amongst industrial workers whereas it is a multi dimensional and complex phenomenon in industrial nations in West and is also measured imperfectly. An interest in unemployment, both as a factor that is strongly able to influence various roles of nations in the world economy and as an aspect of comparative development of economies on a national level, has helped in the past to stimulate efforts to gain some measure of unemployment which was moving beyond national boundaries. The most significant attempt was to construct an index that could internationally be used for unemployment. This was constructed by John Lindberg of the International Labour Office (ILO) (Bowley 104). The significance of altering statistical practice has been agreed by successive international conferences of labour statisticians. ILO reports have helped a lot in tackling with the problems on an international basis that deal in unification of unemployment statistics. The fact that the trade union unemployment statistics, despite their defects, do not come off so badly after all may be ascribed to the following factors: In some cases the sample of employment covered is relatively large.
This renders the problem of error in collection and sampling less critical. Secondly,
given the difficulties involved in defining unemployment to begin with, there are certain advantages in having the initial collection and processing of the data done by experts. The local trade union secretary, particularly if he is concurrently operating an unemployment insurance fund, is uniquely in a position to know the state of trade in his area and to appraise the employment status of each individual worker. Thirdly, One of the limitations of certain types of unemployment statistics (e.g. those emanating from public employment offices) is that reporting is incomplete because of lack of incentive of the unemployed worker to report 'himself as such. (Ashley). In the case of trade union statistics, reporting may be of personal advantage to the unemployed on one or more of three counts: he may be eligible for unemployment benefits, he may be excused from paying his union dues, and he may be able to secure a new job by referral from the union in the event that unemployment registers are kept. In a specific situation, the greater the advantage that accrues to the worker from registering, the more complete the count of unemployment is apt to be. Unemployment data has been assembled for ten various countries. The period involved is 1900 to 1950 and mostly the countries involved are mostly industrialized countries. The choice as to which country to choose for comparing unemployment rates was governed by the minimum material available for evaluating and describing these statistics, the amount of time that we had and the availability of unemployment statistics. However, the half century from 1900 to 1950 does not mark a historically homogenous time period. It is the time period when there were several historic events that took place and they were successful in