is there a glass ceiling in sweden using 1998 data we show that the gender log wage gap in sweden increases throughout the wage distribution and accelerates in the upper tail we interpret this as a strong glass ceiling effect we use quantile regression decompositions to examine whether this pattern can be ascribed primarily to gender differences in labor market characteristics or in the rewards to those characteristics even after extensive controls for gender differences in age education both level and field sector industry and occupation we find that the glass ceiling effect we see in the raw data persists to a considerable extent

a public choice model of trade union behaviour and membership it is commonly assumed in the microeconomic literature concerned with trade union behaviour that the union maximises an aggregate utility function defined over homogeneous individuals and that the level of membership is fixed the purpose of this paper is to relax these two assumptions it is suggested below that trade unions may usefully be treated as political organisations comprising heterogeneous individuals and that the effects of union wage policies on the level of membership should be explicitly incorporated into the model consider first the assumption that the union is a homogeneous organisation this is often a convenient simplification but observation of the behaviour and government of trade unions suggests it is hardly realistic trade unions in the united kingdom are large groups based on a complex organisational structure comprising an executive a shop steward system and a body of rank and file members once the union is considered as a complex organisation the question arises as to how members preferences are transmitted through the hierarchical levels each of which may have conflicting aims there are two polar theoretical approaches to this question in the industrial relations literature clegg i980 at one extreme unions are seen as oligarchies unresponsive to members wishes full time officials it is argued secure a monopoly of power to stay in office with the assistance of low membership participation and apathy at the other extreme unions are regarded as organisations which are quasi democratic due to the presence of informal parties or factions the growth of workplace organisation and the existence of voting and postal or workplace balloting these two polar approaches to trade unions as large organisations may be linked up to parallel economic analyses of organisations if it is believed that trade unions are oligarchies then it may be enlightening to apply to unions economic models of bureaucracy or models of the firm comprising both shareholders and management alternatively if it is believed that trade unions are democratic organisations then public choice behavioural models may be enlightening the public choice model is chosen in this paper in preference to modern theories of the firm or of bureaucracies because it is believed that the public choice model represents a closer first approximation to trade union behaviour in the united kingdom although of course some particular unions may better fit the oligarchic model the second major concern of this paper is to relax the assumption of a fixed level of union membership the use of a fixed membership assumption in the

intellectual property rights strategic technology agreements and market structure the case of gsm this paper investigates the role of intellectual property rights iprs in shaping the gsm industry this industry is an example of a high tech industry in which standards play a large role in the process of designing the gsm standard a lot of attention has been given to iprs mainly to avoid a situation in which a single ipr holder could hamper or even totally block the development of the standard nevertheless the ultimate gsm standard contains a large amount of so called essential iprs i e iprs without which the implementation of gsm products is impossible the paper starts with a general discussion of the development of gsm and the role of firm strategy and iprs in this process next we present a database on the essential iprs in the gsm standard this database has been compiled on the basis of international patent statistics and the data that manufacturers have supplied to etsi the european standardization body re sponsible for defining the gsm standard we use this database to assess the dynamic ipr position of firms in the original gsm standard and its subsequent development in a next part of our analysis we relate the firm s ipr p osition to the trends in strategic technology agreements in the mobile telecommunications field we ask the question whether firms that are powerful in terms of iprs are also the firms that are central in the technology agreements network or vice versa we also investigate whether developments over time in the technology agreements data follow from the dynamic movements in the ipr position of a firm and which other factors play a role in this

political aspects of innovation abstract political aspects that enhance but also undermine the positive transformational power of public innovation policies are examined as such this paper follows michal kalecki in his 1943 paper that identifies the political aspects which enhance and undermine the positive transformational power of keynesian full employment policies similarly this paper provides a policy framework that identifies what government and business support as innovation policies the role of innovation stems from schumpeter s long run perspective but incorporates the more dynamic cyclical short term and trend perspectives of kalecki this paper critiques the strategy of public innovation policy in general and derives policy implications

changes in the u s wage structure 1963 1987 application of quantile regression the 1980 s witnessed rapid changes in the structure of wages in the united states in this study recently developed techniques for quantile regression are applied to every march current population survey since 1964 and changes in the return to schooling and experience at different points of the wage distribution are examined the quantile regression technique parsimoniously describes the entire conditional wage distribution this conditional distribution is used to examine changes in within group wage inequality as measured by the difference between conditional quantiles two linear models are considered a simple one group model and a 16 group model the results suggest that the returns to schooling and experience differ across quantiles of the wage distribution but their patterns of change are similar significant differences in wage inequality are also found across the various skill groups the paper also presents a new imputation method for cps data

centralisation employment and wage dispersion this paper is about bargaining institutions and their influence on wage dispersion and employment using novel statistical measures it compares labor market performance in seventeen oecd countries since 1973 it concludes that countries with highly centralized wage bargaining have generally achieved the best performance combining high employment with low wage dispersion thereby avoiding certain major inequalities prevalent elsewhere the paper also presents a formal model of bargaining based on the work of l calmfors and j driffill 1988 simulations are used to illustrate how this model generates the kind of outcomes described in the empirical part of the paper copyright 1992 by royal economic society

wage dispersion and decentralization of wage bargaining this article studies how decentralization of wage bargaining from sector to firm level influences wage levels and wage dispersion we use detailed panel data covering a period of decentralization in the danish labor market the decentralization process provides variation in the individual worker s wage setting system that facilitates identification of the effects of decentralization we find a wage premium associated with firm level bargaining relative to sector level bargaining and that the return to skills is higher under the more decentralized wage setting systems using quantile regression we also find that wages are more dispersed under firm level bargaining compared to more centralized wage setting systems

union egalitarianism as income insurance it is a common observation that unions often try to compress the wage distribution among their members as compared with the productivity distribution a troublesome aspect of standard theories of redistributive unions is the question why high productivity workers choose to enter the union in the first place this paper develops and explores the implications of an alternative insurance rationale for egalitarian wage objectives apart from providing a simple explanation of why heterogeneous union members may agree on egalitarian wage policies it also suggests a more guarded attitude toward the welfare costs of pay compression copyright 1992 by the london school of economics and political science

china s transition and its implications for international business this paper focuses on institutional change as the central and most consequential contextual aspect of china s transition identification of key characteristics of china s emergent institutions leads to propositions on their relevance for international business practice china s transition also raises issues for theory development including the way that transition is modeled the need to draw upon multiple perspectives and the concomitants of a contextual approach

firm level contracting and the structure of wages in spain in many european countries sectoral bargaining agreements are automatically extended to cover all firms in an industry employers and employees can also negotiate firm specific contracts the authors of this paper use a large matched employer employee data set from a 1995 survey in spain to study the effects of firm level contracting on the structure of wages they estimate a series of wage determination models including specifications that control for individual characteristics coworker characteristics the bargaining status of the workplace and the probability that the workplace was covered by a firm level contract they find that firm level contracting was associated with a 5 10 wage premium with larger premiums for more highly paid workers although they cannot decisively test between alternative explanations for the firm level contracting premium they find that workers with firm specific contracts had substantially longer job tenure than other workers suggesting that the premium was at least

on the job search and the wage distribution the article structually estimates an on the job search model of job separations given each employer pays observably equivalent workers the same but wages are dispersed across employers an employer s separation flow is the sum of an exogenous outflow unrelated to the wage and a job to job flow that decreases with the employer s wage using data from the danish integrated database for labour market research the empirical results imply as predicted by theory that search effort declines with the wage furthermore the estimates explain the employment effect defined as the horizontal difference between the distribution of wages earned and the wage offer distribution

the governance of sustainable socio technical transitions a quasi evolutionary model of socio technical transitions is described in which regimes face selection pressures continuously differentiated transition contexts determine the form and direction of regime change in response to these pressures the articulation of pressures and the degree to which responses are coordinated and based on resources available within the regime define the transition context four alternative contexts are described endogenous renewal re orientation of trajectories emergent transformation and purposive transitions agency and power in the governance of regime transformation are analysed power to affect change depends on regime membership the distribution of resources for change and expectations

contractual wages and the wage cushion under different bargaining settings how does a typically european bargaining system with collective bargaining and national minimum wage coexist with low unemployment and high wage flexibility a unique data set on workers firms and collective bargaining contracts in portugal is used to analyze the determinants of both the contractual wage and the wage cushion difference between contractual and actual wages the results indicate that the wage cushion stretches the returns to worker and firm attributes whereas it shrinks the returns to union power therefore firm specific arrangements partly offset collective bargaining granting firms certain freedom when setting wages contractual wages reflect trade unions egalitarian policy

occupations and import competition evidence from denmark i argue that the winners and losers from trade are decided primarily by occupation in addition to fixed adjustment costs workers build up specific human capital over time that is destroyed when they must change occupations i show that ignoring human capital biases estimates of adjustment costs upward by a factor of 3 estimating an occupational choice model of the danish labor market i show that 57 percent of the dispersion in worker outcomes is accounted for by occupations and only 16 percent by sectors finally the model suggests that rising import competition from 1995 2005 reduced lifetime earnings for 5 percent of workers

taxation and the long run allocation of labor theory and danish evidence abstract inspired by hayek 1945 we study the distortionary effects of taxation on labor mobility and the long run allocation of labor across different profitable opportunities these effects are not well detected by the methods applied in the large public finance literature estimating the elasticity of taxable income and quantifying the efficiency loss from taxation our analysis builds on a standard search theoretic framework where workers are continually seeking better paid jobs but are also fired from time to time because of economic development and productivity shocks we incorporate non linear taxation into this setting and estimate the structural parameters of the model using employer employee register based data for the full danish population of workers and workplaces for the years 2004 2006 our results indicate that along the intensive margin the danish taxation generates an overall efficiency loss corresponding to a 12 reduction in total income it is possible to reap 4 5 of this potential efficiency gain by going from a high tax scandinavian system to a level of taxation in line with low tax oecd countries such as the united states the tax responsiveness of labor mobility and allocation corresponds to an elasticity of taxable income with respect to the net of tax rate in the range 0 15 0 35

wages profits and rent sharing the paper suggests a new test for rent sharing in the u s labor market using an unbalanced panel from the manufacturing sector it shows that a rise in a sector s profitability leads after some years to an increase in the long run level of wages in that sector the paper controls for workers characteristics for industry fixed effects and for unionism lester s range of wages is estimated for rent sharing reasons alone at approximately 24 per cent of the mean wage

innovation processes in large technical systems market liberalization as a driver for radical change abstract electricity supply is a large technical system which exhibits strong path dependencies and high barriers for radical innovations recent market liberalization however has initiated a fundamental restructuring the paper analyzes how liberalization has altered innovation processes in the field of electricity supply we examine three radical innovations under monopoly conditions and contrast the findings with the results from a survey on the innovation behavior of electric utilities in liberalized markets we argue that the selection environment for innovations has changed in various respects in our sample new options open to innovation activities have emerged at the level of the firm and utility strategies turn out to be more heterogeneous this may be interpreted as an increase in the variety of search processes which may lead to a mid term decrease of path dependencies

wage sorting trends abstract we document a strong trend towards more positive assortative wage sorting using danish matched employer employee data from 1980 to 2006 the pattern is not due to compositional changes in the labor market and primarily occurs among high wage workers

whose wages do unions raise a dynamic model of unionism and wage rate determination for young men we estimate the union premium for young men over a period of declining unionization 1980 87 through a procedure which identifies the alternative sources of the endogeneity of union status while we estimate the average increase in wages resulting from union employment to be in excess of 20 we find that the return to unobserved heterogeneity operating through union status is substantial and that the union premium is highly variable we also find that the premium is sensitive to the form of sorting allowed in estimation moreover the data are consistent with comparative advantage sorting our results suggest that the unobserved heterogeneity which positively contributes to the likelihood of union membership is associated with higher wages we are unable however to determine whether this is due to the ability of these workers to extract monopoly rents or whether it reflects the more demanding hiring standards of employers faced by union wages 1998 john wiley sons ltd

the u shapes of occupational mobility using administrative panel data on the entire danish population we document a new set of facts characterizing occupational mobility for most occupations mobility is u shaped and directional not only low but also high wage earners within an occupation have a particularly large probability of leaving their occupation and the low high earners tend to switch to new occupations with lower higher average wages exceptions to this pattern of two sided selection are occupations with steeply rising declining productivity where mainly the lower higher paid workers within this occupation tend to leave the facts conflict with several existing theories that are used to account for endogeneity in occupational choice but it is shown analytically that the patterns are explained consistently within a theory of vertical sorting under absolute advantage that includes learning about workers abilities

wage setting institutions and pay inequality in advanced industrial societies the distribution of pay differs significantly across countries and over time among advanced industrial societies in this paper institutional and political determinants of pay inequality are studied in sixteen countries from 1980 to 1992 the most important factor in explaining pay dispersion is the level of wage setting i e whether wages are set at the level of the individual the plant the industry or the entire private sector the impact of centralization is the same whether centralization occurs via collective bargaining or via government involvement in private sector wage setting the concentration of unions and the share of the labor force covered by collective bargaining agreements also matter after controlling for wage setting institutions other variables such as the governing coalition the size of government international openness and the supply of highly educated workers have little impact economic political and norm based explanations for the association of centralization with egalitarian outcomes are discussed

identification of endogenous social effects the reflection problem this paper examines the reflection problem that arises when a researcher observing the distribution of behaviour in a population tries to infer whether the average behaviour in some group influences the behaviour of the individuals that comprise the group it is found that inference is not possible unless the researcher has prior information specifying the compisition of reference groups if this information is available the prospects for inference depend critically on the population relationship between the variables defining reference groups and those directly affecting outcomes inference is difficult to implossible if these variables are functionally dependent or are statistically independent the prospects are better if the variables defining reference groups and those directly affecting outcomes are moderately related in the population

search costs and efficiency do unemployed workers search enough many labor market policies affect the marginal benefits and costs of job search the impact and desirability of such policies depend on the distribution of search costs in this paper we provide an equilibrium framework for identifying the distribution of search costs and we apply it to the dutch labor market in our model the wage distribution job search intensities and firm entry are simultaneously determined in market equilibrium given the distribution of search intensities which we directly observe we calibrate the search cost distribution and the flow value of non market time these values are then used to derive the socially optimal firm entry rates and distribution of job search intensities from a social point of view some unemployed workers search too little due to a hold up problem while other unemployed workers search too much due to coordination frictions and rent seeking behavior our results indicate that jointly increasing unemployment benefits and the sanctions for unemployed workers who do not search at all can be welfare improving

the socio technical transition of distributed electricity storage into future networks system value and stakeholder views whole system models for the gb electricity system suggest that distributed electricity storage has the potential to significantly reduce the system integration cost for future system scenarios from a policy perspective this poses the question why this value should not be realised within existing market structures opinion among stakeholders is divided some believe that storage deployment constitutes a special case in need of policy support others insist that markets can provide the necessary platform to negotiate contracts which reward storage operators for the range of services they could provide this paper seeks to inform this debate with a process of stakeholder engagement using a perspective informed by socio technical transition literatures this approach allows the identification of tensions among actors in the electricity system and of possibilities for co evolution in the deployment of storage technologies during a transition towards a low carbon electricity system it also draws attention to policy related challenges of technology lock in and path dependency resulting from poor alignment of incumbent regimes with the requirements for distributed electricity storage

evolutionary approaches for sustainable innovation policies from niche to paradigm fostering technological innovation is considered as an important element of policies towards sustainable development in the past 10 years evolutionary policy approaches have been increasingly advocated for several reasons they seem well equipped to underpin sustainable innovation policies they focus on dynamics of change and their drivers they allow for a substantive perspective on technologies beyond mere input output relations taking into account trajectories and different characteristics of innovation and they are able to describe circumstances under which established technologies might persist even when they are to some extent inferior to their new competitors lock in however the policy effectiveness of evolutionary approaches in cases in which radical or systemic changes are involved is not yet proven in this paper we assess the theoretical rationale instrumental aspects and the coping with policy constraints of three evolutionary policy approaches which have also been used in empirical studies strategic niche management transition management and time strategies each approach has its strengths and specific problems and all three have to be further developed and tested out but they hold promise for contributing to non incremental change with economic and environmental benefits by shaping processes of variation selection and retention with the outcomes feeding back into policy they may also be used in other areas in which innovation direction is important for instance health care or food

meso level factors in technological transitions the development of td scdma in china this paper uses an industry case study of technological transition from second generation 2g to third generation 3g networks in china to unfold how meso level factors drove the development of td scdma china s home born 3g standard in this purposive transitional process under the coordination of a central authority multiple regime actors government agencies engaged in bargaining negotiation and consensus building that determined the developmental directions and outcome of td scdma td scdma proved to be a political success but an economic failure the policy implications are profound in particular as the silo regulatory model of policy making which focuses on a single industry is gradually replaced by a collective model involving interindustry players issues about how to manage the collective model pose a serious challenge to policy makers in china and other emerging countries the paper provides evidence for the importance of meso level factors in the multi level perspective mlp framework of sociotechnical transitions