<p>Using mainly quantile regressions, this paper evaluates the gender wage gap throughout the conditional wage distribution in Sweden. The gender wage is found to increase at the upper tail of the wage distribution, indicating an enforcement of the glass ceiling effect recorded in earlier studies.</p><p>The results also indicate that the earlier noted trend of diminishing wage differences at the bottom of the wage distribution now is turning. The increase of overall wage inequalities coincides with a general increase in wage dispersion among high-income and low-income individuals. It is also noted that there are substantial differences in returns to productivity characteristics between the public and the private sectors, and that both the highest and the lowest unexplained gender wage gap is found in the public sector.</p>

In the first chapter of this thesis, we investigate the impact of human capital and wage structure on the gender pay in a panel of European countries using a newly available and appropriate database for cross-country comparisons and a comparable methodology for each country. Our first question is : What role do certain individual characteristics and choices of working men and women play in shaping the cross-country differences in the gender pay gap? What is the exact size of the gender pay gap using the “more appropriate” database available for our purpose? Giving that there are mainly only two harmonized data-sets for comparing gender pay gap throughout Europe: the European Community Household Panel (ECHP) and the European Structure of Earning Survey (ESES). Each database having its shortages: the main weakness of the ECHP is the lack of perfect reliability of the data in general and of wages in particular. However the main advantage of this database is the panel-data dimension and the information on both households and individuals. The data of the ESES is, on the contrary, of a very high standard but it only covers the private sector and has a cross-sectional dimension. Furthermore only few countries are currently available : Denmark, Belgium, Spain, Ireland and Italy. We use the European Structure of Earning Survey (ESES) to analyse international differences in gender pay gaps in the private sector based on a sample of five European economies: Belgium, Denmark, Ireland, Italy and Spain. Using different methods, we examine how wage structures, differences in the distribution of measured characteristics and occupational segregation contribute to and explain the pattern of international differences. Furthermore, we take account of the fact that indirect discrimination may influence female occupational distributions. We find these latter factors to have a significant impact on gender wage differentials. However, the magnitude of their effect varies across countries. In the second chapter, we analyse the persistence of the gender pay differentials over time in Europe and better test the productivity hypothesis by taking into account unobserved heterogeneity. Our second question is : What is the evolution of the pay differential between men and women over a period of time in Europe? And what is the impact of unobserved heterogeneity? The researcher here provides evidence on the effects of unobserved individual heterogeneity on estimated gender pay differentials. Using the European Community Household Panel (ECHP), we present a cross-country comparison of the evolution of unadjusted and adjusted gender pay gaps using both cross-section and panel-data estimation techniques. The analysed countries differ greatly with respect to labour market legislation, bargaining practices structure of earnings and female employment rates. On adjusting for unobserved heterogeneity, we find a narrowed male-female pay differential, as well as significantly different rates of return on individual characteristics. In particularly, the adjusted wage differential decreases by 7 per cent in Belgium, 14 per cent in Ireland, between 20-30 per cent Germany, Italy, the Netherlands and Spain and of 41 per cent and 54 per cent in the UK and in Denmark respectively. In the third chapter, we investigate causes of the gender pay gap beyond the gender differences in observed and unobserved productive characteristics or simply the sex. Explanations of the gender pay gap may be the penalty women face for having children. Obviously, the motherhood wage penalty is relevant to larger issues of gender inequality given that most women are mothers and that childrearing remains a women’s affair. Thus, any penalty associated with motherhood but not with fatherhood affects many women and as such contributes to gender inequalities as the gender pay gap. Furthermore, the motherhood wage effect may be different along the wage distribution as women with different earnings may not be equal in recognising opportunities to reconcile their mother’s and earner’s role. This brings us to our third question. Our third question is : What is the wage effect for mothers of young children in the household? And does it vary along the wage distribution of women? This chapter provides more insight into the effect of the presence of young children on women’s wages. We use individual data from the ECHP (1996-2001) and both a generalised linear model (GLM) and quantile regression (QR) techniques to estimate the wage penalty/bonus associated with the presence of children under the age of sixteen for mothers in ten EU Member States. We also correct for potential selection bias using the Heckman (1979) correction term in the GLM (at the mean) and a selectivity correction term in the quantile regressions. To distinguish between mothers according to their age at the time of their first birth, wage estimations are carried out, separately, for mothers who had their first child before the age of 25 (‘young mothers’) and mothers who had their first child after the age of 25 (‘old mothers’). Our results suggest that on average young mothers earn less than non-mothers while old mothers obtain a gross wage bonus in all countries. These wage differentials are mainly due to differences in human capital, occupational segregation and, to a lesser extent, sectoral segregation between mothers and non-mothers. This overall impact of labour market segregation, suggests a “crowding” explanation of the family pay gap – pay differential between mothers and non-mothers. Nevertheless, the fact that we still find significant family pay gaps in some countries after we control for all variables of our model suggests that we cannot reject the “taste-based” explanation of the family gap in these countries. Our analysis of the impact of family policies on the family pay gap across countries has shown that parental leave and childcare policies tend to decrease the pay differential between non-mothers and mothers. Cash and tax benefits, on the contrary, tend to widen this pay differential. Sample selection also affects the level of the mother pay gap at the mean and throughout the wage distribution in most countries. Furthermore, we find that in most countries inter-quantile differences in pay between mothers and non-mothers are mainly due to differences in human-capital. Differences in their occupational and sectoral segregation further shape these wage differentials along the wage distribution in the UK, Germany and Portugal in our sample of young mothers and in Spain in the sample of old mothers. In the fourth chapter, we analyse the combined effect of motherhood and the family status on women’s wage. Our fourth question is : Is there a lone motherhood pay gap in Europe? And does it vary along the wage distribution of mothers? Substantial research has been devoted to the analysis of poverty and income gaps between households of different types. The effects of family status on wages have been studied to a lesser extent. In this chapter, we present a selectivity corrected quantile regression model for the lone motherhood pay gap – the differential in hourly wage between lone mothers and those with partners. We used harmonized data from the European Community Household Panel and present results for a panel of European countries. We found evidence of lone motherhood penalties and bonuses. In our analysis, most countries presented higher wage disparities at the top of the wage distribution rather than at the bottom or at the mean. Our results suggest that cross-country differences in the lone motherhood pay gap are mainly due to differences in observed and unobserved characteristics between partnered mothers and lone mothers, differences in sample selection and presence of young children in the household. We also investigated other explanations for these differences such as the availability and level of childcare arrangements, the provision of gender-balanced leave and the level of child benefits and tax incentives. As expected, we have found significant positive relationship between the pay gap between lone and partnered mothers and the childcare, take-up and cash and tax benefits policies. Therefore improving these family policies would reduce the raw pay gap observed.

Using mainly quantile regressions, this paper evaluates the gender wage gap throughout the conditional wage distribution in Sweden. The gender wage is found to increase at the upper tail of the wage distribution, indicating an enforcement of the glass ceiling effect recorded in earlier studies. The results also indicate that the earlier noted trend of diminishing wage differences at the bottom of the wage distribution now is turning. The increase of overall wage inequalities coincides with a general increase in wage dispersion among high-income and low-income individuals. It is also noted that there are substantial differences in returns to productivity characteristics between the public and the private sectors, and that both the highest and the lowest unexplained gender wage gap is found in the public sector.

The gender wage gap is accounted for to a substantial degree by the sex composition of occupations. The present thesis examines the mechanisms that produce this pattern. In particular, the theory of devaluation, currently the most widely accepted sociological explanation, is tested. The empirical findings, reported in three self-contained essays, question this line of explanation. All results are based on Swedish data: the Level of Living surveys (LNU; essays I and II) and administrative labour market registers (essay III). In Essay I the association between occupational prestige and occupational sex composition is examined. The association is non-linear, with gender mixed occupations having the highest prestige. Further, care work does not have lower prestige than other kinds of work. These results are inconsistent with expectations derived from devaluation theory. The analysis also shows that the wage returns to occupational prestige are lower for women than for men. Essay II examines why women receive relatively low returns to prestige. Family related factors are shown to be crucial. The gender difference in pay-off to prestige is thus marked among married/cohabiting employees with children but insignificant among singles as well as among childless married/cohabiting women and men. The gender wage gap in high-prestige occupations is largely due to differences between women and men in work characteristics difficult to reconcile with family duties. In essay III the functional form of the relation between wages and occupational sex composition is investigated. In the cross-section gender mixed occupations have the highest wages. Panel data tend to confirm this pattern: mobility from strongly male or female dominated occupations to more gender mixed occupations is associated with relatively high rates of wage growth. Further, there is a wage premium for care work but a wage penalty for other service work. These findings do not support devaluation theory. / <p>At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 2: Manuscript. 3: Accepted.</p>

This thesis compares two datasets, the Science and Engineering Indicators 2006 (SEI) and the 1993 National Survey of College Graduates (NSCG), and looks at the impact of sex on full-time annual salary while controlling for different variables. The SEI provides a study based on data from 1999 about the sex effects on salary, adds controls, and records the changes in the effect of sex on salary. The SEI study finds after adding controls for worker heterogeneity and compensating wage differentials, women with bachelor's degrees earn 11.0% less, women with master's degrees earn 8.0% less, and women with doctoral degrees earn 8.4% less than their male counterparts. My analysis of the NSCG finds after adding controls, women with bachelor's degrees earn 18.5% less, women with master?s degrees earn 18.7% less, and women with doctoral degrees earn 15.3% less than their male counterparts. Additionally, in the NSCG and the SEI the field of degree impacted the sex effects the most for bachelor's and master's degree holders. This research is useful to study the difference between these datasets from different time periods. Specifically, the difference in the sex wage gap and in the changing importance of certain variables affecting the sex wage gap.

Informality has been a widespread fact in most of developing countries. Especially after the implementation of liberalization policies in the 1980s, informal sector has expanded, and informal employment has been more attractive in the Turkish economy. The aim of this thesis is to examine whether there is wage gap between formal and informal employment in Turkey for the years 2007 and 2008. In order to test if the determinants of wages are different, selection corrected wage equations are estimated for manufacturing and service sectors for men and women separately by using the Household Labor Force Survey micro level data of TURKSTAT. We also estimated Multinomial Logit model in order to be able to take the sector selection process into account. According to our estimation results, there was a significant wage gap between formal and informal employment in Turkey for the years 2007 and 2008, even after controlling for a number of individual-specific characteristics. This indicates the existence of the segmented labor market in terms of wages in Turkey, as it is asserted by the number of researchers arguing against the neo-classical labor market theory.

The current study explores the effects of gender on salary negotiation behaviors and expectancies and the relationship between these variables and starting salary outcomes. College students from a variety of different majors were surveyed prior to and then approximately two to four months after graduation. Though there was no gender difference in final salary or difference between initial and final salary offer, men reported using more aggressive and active salary negotiation behaviors. The results also suggest that men may have felt more empowered in the salary negotiation context. They expected higher salaries than women did, anticipated less discomfort and believed themselves to be less emotional in the salary negotiation context. In addition, males and females both considered stereotypically masculine traits as more effective in the negotiation context than stereotypically feminine traits and this difference was even larger for women than it was for men. Despite the above findings, the absence of gender differences in starting salary outcomes may have been caused by the perception that salary was non-negotiable, as few participants in this study made counteroffers. Future studies are needed to expand the number of field studies on gender differences in salary negotiation and to examine the variables above using a more diverse sample.

When attempting to explain the economics of occupational structure, income servies as the apex of discrimination. Women earn only 60% of what men earn. This statistic does not offend enough people since efforts to change the situation have provided only further resistance by women and men for improvement in the earnings split. Women tend to receive lower wage and salary earnings than men because of differences in types of jobs held, job training and continuity of work experience. Large numbers of women work in traditionally low-paying occupations and low-wage industries. Women tend to respond to their cultural up-bringing. My hypothesis rests on the foundation that women feel compelled to move into low-income areas. I utilized occupational and georaphic categories in order to provide a more selected example of wage discrimination.

This study analyzes the under-representation of women in engineering occupations and investigates different types of discrimination that drive women from engineering careers. A male/female interaction continuum created by New Dynamics Consulting is introduced to provide a visual representation of the range of behaviors exhibited by both men and women. The continuum shows a progressive path that describes a range of non-collaborative to collaborative behaviors which begin with dominant and subordinate stereotypes and transitions to mutual colleagueship between the genders. By understanding how an organization falls on the continuum, corrective actions may be established for individuals and groups in an effort to modify and eliminate the behaviors that do not support colleagueship and that contribute to the attrition of women engineers. The national gender wage gap between men and women is analyzed and further broken down into its main contributors and is offered as a metric to be used to determine the success of eliminating inherent gender discrimination. A root cause is then presented based on men’s core beliefs and attitudes towards women in the technical workplace. Suggested corrective actions are itemized to prevent extensive litigation such as the nation’s largest class action gender discrimination lawsuit against Wal-Mart. / text

This dissertation consists of three essays in applied microeconomics. These essays investigate different aspects of the impact of technology on labor market outcomes and firm strategy. The first essay, co-authored with Ronald L. Oaxaca, is in the area of labor economics and it investigates the relation between non-neutral technological change and the gender gap in wages. This essay is the first to address the issue of the recent narrowing of the gender wage gap in the context of technological change by using a novel approach to separately estimate the effects of technological change and discrimination on the gender wage gap. Using a constant elasticity of substitution production function and Current Population Survey data on employment and wages by industry and occupation, the results show that changes in non-neutral technological change explain between 5% and 9% of the narrowing of the wage gap between 1979 and 2001. The latter two essays span topics across applied industrial organization, firm strategy and labor economics. The second component of my dissertation investigates the relation between technological knowledge diffusion through the labor mobility of scientists and the organization of R&amp;D activities by innovative firms. Using a labor mobility measure from the Current Population Survey March Supplements as a measure for inter-firm technology spillovers and a panel of R&amp;D alliance data for 18 U.S. industries between 1989 and 1999, a Poisson estimation shows that firms facing a 10% increase in the labor mobility of scientists have a 5% increase in the annual number of R&amp;D collaborations. The third essay is an empirical analysis of the impact of knowledge dissemination generated by the labor mobility of scientists and engineers on a measure of the pace of innovation. Using an unbalanced panel of firms containing patent data matched with firm data across eight innovative industries, from 1989 to 1998, along with a measure of the labor mobility of scientists and engineers, this essay provides evidence that firms in industries exposed to levels of labor mobility of scientists and engineers that differ by 1%, have an expected time lag between sequential generations of technologies that differs by 0.56 years.