Collective bargaining developed with the growth of trade unionism, especially from 1890 onward. It impinged upon labour markets in which the trend of money wages was upward: in years of good business, money wages generally rose, and though in the years of falling or low activity they were often cut, the cuts were generally smaller than the preceding rises had been.
A first effect of the extension of collective bargaining was to reduce pay differences, which had been large, between the wages a given grade of labour received at any one time in different regions and in different firms in the same region, and even between one worker and another under the same employer. The unions at first had to accept the prevailing regional differences, but their pressure to bring up the lower-paid regions has reinforced the effect of improved communications and information in reducing these differences greatly, especially since World War II. Assurance of âthe rate for the jobâ raised the wages of particular groups or individuals who lacked access to alternative employers, either spatially or because of their lack of information and mobility. In general, the extension of collective bargaining brought about greater uniformity in the rates of pay received by workers of a given grade, and it did so by raising the lower rates.
Collective bargaining has also affected the forms in which improvements in pay are realized. It has borne particularly on those parts of the terms and conditions of employment that of their nature require to be regulated collectively. Chief among these are the hours of work. The extension of such fringe benefits as insurance and pensions paid for by the employer has also reflected trade union pressure.
Studies of differences between the movements of wages in unionized and nonunionized sectors of employment, especially in the United States, have brought out three other effects of the extension of collective bargaining. One is an impact and once-for-all effect: the introduction of collective bargaining has raised the wages of the workers concerned, relative to the general level prevailing around them, by some 10â15 percent. A second effect has been in the timing of changes: when wage rises were the order of the day, unionized workers achieved them earlier than nonunionized; and when the market was moving the other way, cuts of unionized workers were put off longer. When the cost of living has risen rapidly, as in wartime, the unionistsâ ability to secure compensatory rises in money wages more promptly promoted the extension of unionism, especially among white-collar workers who had previously stood aloof from it. The third effect has been in the ability not only to defer wage cuts in depression but also to reduce their amount. In the United States, for example, the differential between wages in the unionized and nonunionized sectors was at its highest in the 1932 depression trough. A major effect on the general level of pay in terms of purchasing power and on its share in the product of industry seems to have stemmed from the resistance to pay cuts in the world economic depression of 1921: though pay was cut severely, often after protracted struggles, it could not be brought down as far as product prices had fallen, and in more than one country the distribution of the product of industry between pay and profit seems to have been permanently shifted.
By raising the pay of particular workers and by modifying fluctuations in the workersâ favour, over a period of time collective bargaining has made the total of pay higher than it would have been otherwise in the same conditions of the market. But the effect has been limited. Before World War II the movements of the general level of pay continued to depend mainly on market conditions, and the points at which the effects of collective bargaining can be distinguished clearly are fewer than might be expected. Collective bargaining provided the arena in which market forces took their effect, rather than a shelter from or alternative to them.
After World War II, however, the bearing of market forces on collective bargaining changed. One important influence was full employment (at least until the 1970s), but others were the increased importance of governments as employers, an apparent diminution of the significance of labour cost in product market competition, and, from the 1970s, the floating of national exchange rates. Employers gained the expectation that if they agreed to rises in pay that would exceed the rise in productivity, and so raise unit costs, they would still be able to preserve profit margins by raising the prices of their productsâand do this without losing business, provided only that the initial rise in pay was not greater than that which was being conceded at the time by other employers. Some countries, such as Sweden and Germany, had employer organizations that were sufficiently united to resist these pressures. Other countries with little employer solidarity and highly fragmented bargaining, such as Britain and Italy, suffered persistently high cost inflation. Thus, the impact of trade unions cannot be assessed in isolation from that of employers.
A second limitation is that, even where collective bargaining has affected the movement of money wages, it has had only transient effect on the division of the national income between pay and profits. Whatever the course from time to time of rates of pay in money, the pay per person in real terms (i.e., in terms of purchasing power) has risen with remarkable regularity in much the same proportion as output per person, save for the one major exception of the displacement in favour of pay in the early 1920s. It appears that firms take advantage of opportunities to restore profit margins either by maintaining their selling prices while productivity rises or by raising those prices. A rise in real pay initially conferred by any one rise in money pay, therefore, will be reduced as the cost of living rises.
