Raising Trade Union Membership Concentration, 1892–1987: The Relative Effects of Mergers and Membership Change

A number of recent studies measure trade union membership concentration using the Herfindahl index. This study uses the same measure to examine the relative effects of the different factors that influenced the level of British union membership concentration between 1892 and 1987. Five factors are identified as influencing this development: mergers, formations, dissolutions, breakaways, and membership change. Marked occupational differences in the relative effect of these factors are shown. In aggregate terms, mergers and membership change tend to be complementary in effect until 1946 and counteractive thereafter.     

Institutional Change and Union Membership: A Longitudinal Analysis of Union Membership Determinants in Israel

We examine the degree to which factors associated with workers' union membership decisions are sensitive to shifts in the institutional environment of unions. Comparative logit analyses of the relationship between potential determinants of membership and actual union membership over time suggestthat the factors associated with membership are elastic and may reflect shifts in the institutional context of unions.     

Union Presence, Union Service and Membership Participation

Much of the literature on the determinants of union activism has focused on biographical and attitudinal precursors or correlates of several measures of union participation. Although interactionist theory emphasizes the importance of social context, little attention has been paid to union presence. The argument of this paper is that union presence, defined by certain structural arrangements, and the quality of union service, influences measures of workplace and non-workplace union participation through the mediating influence of union orientation. The paper begins by reviewing the literature on union presence and participation, before presenting a model of the joint impact of union service and union presence on both on- and off-the job union participation. Data are drawn from a study of membership involvement within the Irish-based Services, Industrial, Professional and Technical Union (SIPTU). The main findings are that there are significant relationships between presence and service level variables and measures of union participation. In particular, service variables appear to affect workplace union participation largely through the mediating influence of union orientation. Presence variables, by contrast, have both direct and indirect influence on participation in union activities within and outside the workplace.     

Earnings Inequality and Unions in Canada

This paper reports research examining differences in the earnings distributions of unionized and non–unionized workers and the impact of union status on the likelihood of a worker being in each region of the earnings distribution. Average earnings of unionized workers are shown to be higher than those of non–union workers in the first four quintiles, but lower than average earnings of non–unionized workers in the top quintile. Union effects are greatest among workers situated in the lower and middle regions of the distribution, and benefit workers who are typically disadvantaged in the labour market.     

The Influence of Leadership and Member Attitudes in Understanding the Nature of Union Participation

There has been a growth of interest among industrial relations scholars in the functions of union leadership at both national and local levels. This paper presents a survey-based analysis of the impact of union leaders on member participation in Cypriot public-sector trade unions. It indicates that active leaders promote participation both directly and indirectly, through their influence on members' attitudes towards the union. The study emphasizes the importance of leadership in facilitating further understanding of member participation in trade unions.     

The Composition of Union Membership: The Role of Pensioners in Italy

This paper considers changes in the membership composition of the three leading Italian trade union confederations during the last fifteen years. The analysis emphasizes the remarkable growth of membership among pensioners and the drop in active workers. The key issue here is that intergenerational aspects of unions' membership components are taken into account in the bargaining process. Unions internalize unemployment externalities on pension benefits resultant on the wage outcome as they consider the welfare of all their members in the economy. A formulation of the union monopoly model with endogenous membership supports these findings, while the econometric evaluation of the membership component effects shows that unions are forced to pursue wage moderation and improvements in employment conditions.     

International Patterns of Union Membership

This paper examines changes in unionization that have occurred over the last decade or so using individual level micro data on many countries, with particular emphasis on the United Kingdom, the United States and Canada. I document an empirical regularity not hitherto identified, namely the probability of being unionized follows an inverted U‐shaped pattern in age, maximizing in the mid‐ to late 40s in 34 of the 38 countries I study. I consider the question of why union membership seems to follow a similar inverted U‐shape pattern in age across countries with such diverse industrial relations systems. I find evidence that this arises in part because of cohort effects, but even when cohort effects are removed a U‐shape remains.     

Factors of Convergence and Divergence in Union Membership

This paper considers the extent to which union decline in Britain has been characterized by convergence or divergence in union membership rates for people with different personal and job characteristics. It compares individual union membership in 1975 and 2001 to identify some significant factors of convergence and divergence, which indicate temporal instability in the relationship between union membership and a number of its determinants. Identification of these factors of convergence and divergence should be useful to several parties, including industrial relations scholars and union organizers.     

Determinants of Trade Union Membership in Australia

This paper uses Australian cross-sectional data to examine the determinants of individual union membership. It analyses the separate effect of three groups of variables on the probability of unionisation: personal attributes, occupational and industry-related characteristics, and social and attitudinal factors. While the personal attributes of an employee were found to have little effect on union status, the other two groups of variables added significantly to the explained variance in union membership. An important finding of the study was that certain attitudes, ideologies and social values were clearly associated with variations in union status.     

A Theory of Trade Union Membership Retention

The retention rate of unemployed members can vary substantially between trade unions and may not particularly reflect the structure of the labour market within which a union operates. This raises the issue of whether retention of these members is due to supply-side factors characterised by individuals or to the policy of trade unions towards their unemployed members.     

Earnings Mobility and Long-Run Inequality: An Analysis Using Matched CPS Data

In this article we use matched cross sections from the Current Population Survey (CPS) to examine patterns of short-term earnings mobility for the period 1967-91, which we then employ to assess the impact of rising annual individual earnings inequality on inequality over a longer span, First, we find that less-educated individuals and blacks have more instability in their earnings than those who are more highly educated and non-black. Second, short-term mobility levels have not undergone major changes over the time span we examine. Third, our results suggest that long-run inequality (calculated over five years) rose in the latter half of the 1980s. Fourth, important differences exist across demographic groups in long-run inequality trends, with long-term inequality increasing most in the 1980s for less-educated males.     

Academic Workers and Union Membership: An Inevitable Dilution of Solidarity?

The growth of service employment and new forms of work has supposedly fostered the diffusion of individual orientations at the expense of traditional forms of union solidarity. These developments suggest that academics are likely to manifest an individualist orientation and a weak attachment to trade union membership. Based on a survey of unionized employees in a university setting, we examine whether there are differences in union attachment and solidarity between professionals and other occupational groups.     

The Union Relative Wage Effect for Academic Librarians

This note investigates the impact of labor unions on the starting salaries of academic librarians. Using data collected from members of the Association of Research Libraries (ARL) and employing standard ordinary least squares (OLS) and seemingly unrelated regressions techniques, the union relative wage gap was estimated annually over the 1989–1998 time period. Three important results were found. First, unionized academic librarians received a positive and significant union wage premium throughout most of the decade studied. Second, this wage premium declined in magnitude over time following the trend in the economy as a whole. Lastly, by the end of the sample period, the wage effect had disappeared and was no longer significantly different from zero.     

Trade Union Membership Concentration, 1892-1987: Development and Causation

Existing studies of British trade union membership concentration have used the variance of logs and concentration ratio measures to show a tendency towards increasing concentration. This paper proposes the Herfindahl index as a more appropriate measure. The annual variation in concentration is analysed by means of the Herfindahl index and shows some fluctuation, particularly prior to 1947. Divergent trends are also shown for manual and white-collar membership concentration. An explanation of the aggregate trend and of these different occupational trends is advanced in terms of bargaining structure and the development of general unionism.     

The Relative Effects of Unionism on the Earnings Distributions of Women and Men

This study examines the differential effects of union density on the degree of earnings inequality among women and among men. Our results suggest an equalizing impact of union density for all men and for both men and women who work year-round and full time. Union density does not appear to equalize and may even contribute to a disequalization of the earnings distribution for all women.     

Erosion of the Ghent System and Union Membership Decline: Lessons from Finland

Union density declined in Finland by more than 10 percentage points in less than 10 years. This paper analyses the reasons behind the decline, using micro data from the 1990s. According to our results, the changes in the composition of the labour force and the changes in the labour market explain only about a quarter of this decline. The main reason for the decline appears to be the erosion of the Ghent system, due to the emergence of an independent unemployment insurance fund that provides unemployment insurance without requiring union membership. We also find that the decline in the union density can be attributed to the declining inclination of the cohorts born after the early 1960s to become union members.     

Family,Place and the Intergenerational Transmission of Union Membership

This article examines the importance of family, gender and place to the intergenerational transmission of trade union membership. Using data from the British Household Panel Survey, we show that union membership among parents influences the union joining behaviour of young workers. These effects are particularly apparent among daughters and where both parents are members of unions. The effects of parental membership are also stronger among those born in areas characterized by relatively high levels of union density. Parental effects are therefore important to our understanding of the persistence of regional variations in levels of trade union membership.