imperfect competition multiple equilibria and unemployment policy this paper takes a simple imperfectly competitive macro model with increasing returns and shows how it can lead to nonexistence or multiplicity of equilibria the consequences for government policy toward unemployment are explored and shown to be very different from the traditional model it is argued that a multiple equilibrium model is an attractive possible explanation of the behavior of u k unemployment in the 1980s copyright 1990 by royal economic society

theoretical approaches to monetary disinflation abstract during the 1980s many countries adopted tight monetary policies to reduce high inflation rates which were the legacy of the 1970s as inflation threatens to rise at the beginning of this decade this paper provides a survey of the 1980s literature which sought to provide theoretical understandings of how monetary disinflation is achieved four models are presented monetarist neo keynesian new classical and post keynesian each model s explanation of the recession which accompanies the monetary disinflation is outlined as well as possible policy measures to reduce the extent of the recession and to hasten the return to full employment

on the effect of business and economic university education on political ideology an empirical note we empirically test the hypothesis that a major in economics management business administration or accounting for simplicity referred to as business economics leads to more conservative right wing political views we use a panel dataset of individuals repeated observations for the same individuals over time living in the netherlands drawing data from the longitudinal internet studies for the social sciences from 2008 through 2013 our results show that when using a simple fixed effects model which fully controls for individuals time invariant traits any statistically and quantitatively significant effect of a major in business economics on the political ideology of these individuals disappears we posit that at least in our sample there is no evidence for a causal effect of a major in business economics on individuals political ideology

uncertainty and monetary policy in a wage bargaining model in a wage bargaining model increased uncertainty concerning monetary and real aggregates is shown to give rise to a higher equilibrium unemployment rate moreover the equilibrium unemployment rate is found to depend on the choice of monetary policy regime as this choice affects the uncertainty wage setters face when setting the nominal wage rate it is also shown that the equilibrium inflation rate may depend on uncertainty in such a way that increased uncertainty gives rise to a higher equilibrium unemployment rate as well as a higher equilibrium inflation rate or what has been called stagflation

unions power collective bargaining and optimal monetary policy we study ramsey policies and optimal monetary policy rules in a model with sticky prices and unionized labour markets collective wage bargaining and unions monopoly power dampen wage uctuations and amplify employment uctuations relatively to a dnk model the optimal

challenges facing natural rate theory abstract this paper attempts to test the natural rate hypothesis by looking at historical unemployment data for france the uk and the us we find that the unemployment series can be described as stationary around an infrequently changing mean moreover that the speed of convergence towards mean unemployment is slower when unemployment is high and differs across the three countries the two european countries having more persistence we do not find any evidence that the persistence of a change in unemployment is a function of the size of the change we conclude that the data are consistent with multiple equilibria models where large shocks bring the economy from one equilibrium to another and also with models with a moving natural rate

inflation debt and indexation these twelve essays cover topics on the frontier of indexation and practice an often proposed and debated tool of economic policy they range from highly theoretical discussions to practical experiences in brazil and europe rudiger dombush is ford international professor of economics at mit mario henrique simonsen is director of the postgraduate school of economics getulio vargas foundation rio de janeiro and former minister of finance and planning brazil

a sociological perspective on gender and career outcomes both economists and sociologists have documented the association between gender and career outcomes men are more likely than women to participate in the labor force and men average more hours of paid labor per week and more weeks per year women and men tend to hold different occupations and to work in different industries firms and jobs furthermore men outearn women hold more complex jobs and are more likely to supervise workers of the other sex and to dominate the top positions in their organization the challenge for both disciplines lies not in showing that gender is linked to employment outcomes but in explaining the associations economists have sought explanations in the characteristics and preferences of individual workers or employers some have attributed the associations between workers sex and their career outcomes to sex differences in training and experience career commitment or competing demands on time and energy others focus on employers preferences for workers of one sex over the other taste discrimination or on employers beliefs that workers of one sex or the other are more costly or less profitable to employ statistical discrimination the sociological approach differs from that of economists in recognizing sex segregation as a causal mechanism that gives rise to other differences between women s and men s careers this emphasis on segregation reflects sociologists interest in the ramifications of societal level systems of differentiation and stratification it stems also from the discipline s concern with the impact of people s location in social structures on a variety of life outcomes by concentrating men and women in different jobs segregation exposes them to more or less similar employment

small system modelling of real wages inflation unemployment and output per capita in italy 1970 1994 the relationships between real wages output per capita inflation and unemployment in italy between 1970 and 1994 are modelled using a cointegrated vector autoregression there is evidence of a change in the underlying equilibria and in the dynamic evolution of the variables probably associated with the substantial changes in many sectors of the italian economy after 1979 alternative ways to model structural change in the italian labour market are considered in adopting a split sample approach the results favour an hysteresis interpretation of unemployment

central banks partisan politics and macroeconomic outcomes what are the implications of the trend toward granting central bank independence for partisan theories of the macroeconomy the conventional view is that parties of the left and right strive to achieve distinctive macroeconomic outcomes when in government however when faced with an independent central bank parties of the left may prove unable to produce their preferred partisan outcomes whereas right parties may be privileged in their ability to pursue their goals moreover granting the central bank independence can be expected to have differing effects depending on whether left or right parties prevail in government these issues are explored with a pooled time series model of inflation and unemployment in 16 organization for economic co operation and development countries from 1961 through 1991 the results support the claim that the effects of partisan government and central bank organization are mutually contingent the pattern of results anticipated by partisan theory only arises where central b

egalitarian wage policies and long term unemployment how does a centrally imposed egalitarian wage policy affect unemployment when workers differ with respect to productivity the effect on total unemployment is found to be ambiguous egalitarian wages encourage job creation because increased profits derived from the most productive workers more than outweigh reduced profits derived from the least productive workers short term unemployment is reduced on the other hand firms respond by raising their reservation productivity some workers are left almost completely unemployable long term unemployment rises less inequality in the wage distribution is obtained at the expense of more inequality in the distribution of unemployment

the asymmetric effects of demand shocks international evidence on determinants and implications the analysis focuses on the asymmetric effects of demand shocks the evidence across a sample of 19 industrial countries differentiates the effects of expansionary and contractionary aggregate demand shocks on real output growth and nominal wage and price inflation the difference appears consistent with a kinked supply curve that is dependent on the asymmetric flexibility of wages and or prices across countries furthermore the evidence does not support the endogeneity of asymmetric nominal flexibility with respect to demand variability or trend price inflation across countries on average across countries demand variability increases nominal wage and price inflation relative to deflation while exacerbating output contraction relative to expansion the apparent trade off between changes in real and nominal trends provides further support to the supply side explanation of asymmetry

unions in a frictional labor market abstract a labor market with search and matching frictions where wage setting is controlled by a monopoly union that follows a norm of wage solidarity is found vulnerable to substantial distortions associated with holdup with full commitment to future wages the union achieves efficient hiring in the long run but hikes up wages in the short run to appropriate rents from firms without commitment in a markov perfect equilibrium hiring is too low both in the short and the long run the quantitative impact is demonstrated in an extended model with partial union coverage and multiperiod union contracting

structural unemployment cyclical unemployment and income inequality this is the first study that decomposes unemployment into its structural and cyclical components and investigates their impact on income distribution controlling for the influence of inflation increases in structural unemployment have a substantial aggravating impact on income inequality inflation has a progressive impact which is due to the unexpected component the study demonstrates that previous work failed to take into account the stochastic trend behavior of the variables consequently specifications used by previous research cannot predict the behavior of income shares after 1983 whereas the specification used by this paper generates accurate forecasts the results also indicate that a sustained gnp growth is not necessarily associated with an improvement in income inequality because sustained gnp growth can coexist with increased structural unemployment

unemployment persistence does the size of the shock matter one of the stylized facts of unemployment is that shifts in its mean rate between decades and half decades account for most of its variance in this paper we use a statistical analysis based on markov switching regression models to identify the dates of infrequent changes in the mean of the unemployment rate series of fifteen countries we find that in most countries unemployment persistence is much reduced once the infrequently changing mean rate induced by large shocks to unemployment has been removed we conclude that the observed persistence in unemployment appears to be consistent with multiple equilibria models and models with an endogeneous natural rate 1998 john wiley sons ltd

tracing externalities as sources of indeterminacy abstract this paper offers further inquiry into sources of indeterminacy in general equilibrium we take a more agnostic approach than previous work as we allow for a more general interpretation of externalities in particular we identify the origin of scale economies as being from either labor or capital we find that in the one sector model it is primarily the externalities associated with labor that generate the result however in the two sector model indeterminacy can be ultimately traced back to the externalities from capital in the investment sector

ranking unemployment duration and wages it explores the implication of one central assumption when firms receive multiple acceptable applications they hire the worker who has been unemployed for the least amount of time this assumption ranking is contrasted with the assumption of random hiring no ranking by embodying this assumption in a model of the labour market with job creation destruction and matching the joint behaviour of unemployment the distribution of unemployment durations and wages are characterized the implication that the re employment prospects of employed workers were they to become unemployed are better than those of the currently unemployed appears to have been an important feature of european unemployment experience in the 1980 s this paper examines the effects of the composition of unemployment on wage determination it explores one central assumption when firms receive multiple acceptable applications they hire the worker who has been unemployed for the least amount of time we refer to this assumption as ranking and contrast it throughout to the assumption of random hiring or no ranking by embodying this assumption in a model of the labour market with job creation destruction and matching we characterize the joint behaviour of unemployment the distribution of unemployment durations and wages ranking has a number of important implications first in addition to the obvious result that the exit rate from unemployment is a decreasing function of duration we show that the effect of duration is stronger the higher the rate of unemployment second with the wage depending on the distributions of prospective unemployment durations the presence of long term unemployed per se has little effect on wages third looking at the relation between the wage and the aggregate level of unemployment and comparing ranking to the case of no ranking the wage moves less with the level of unemployment but more with the change in unemployment put simply ranking and no ranking models show exactly the same aggregate unemployment slightly different long run responses of wages to unemployment and sharply different wage dynamics the paper is organized as follows section i characterizes the matching process and derives a matching function based on an urn ball process with vacancies as urns and applications by unemployed workers as balls thus the distribution of applications per vacancy depends on aggregate unemployment and vacancies vacancies with at least one acceptable application are filled when a vacancy receives more than one acceptable application firms use a rule to choose among applicants thus the rule determines who is hired but does not affect the number of hires section ii uses this matching function in a model of the labour market with continual job creation and destruction and characterizes the equilibrium values of unemployment vacancies and hires

increasing returns and the foundations of unemployment theory current approaches to macroeconomic theory divide roughly into two basic schools of thought one approach typically associated with rational expectations views the economy as basically at or near walrasian market clearing equilibrium in which case it becomes very difficult to explain away convincingly the undeniable persistence at times of involuntary unemployment another approach views the underemployed economy as being in a state of temporary fixed price disequilibrium in which case aside from having to repress suspicions that the essence of effective demand failure might not have to do with prices fixed at wrong values there is a lot of rationalising to be done about why profitable adjustments are so slow this paper argues that something like an internally consistent theory of steady state involuntary unemployment is possible and even plausible the cornerstone of this third approach is increasing returns to scale which blocks unemployed agents from breaking out of a low level equilibrium trap unless there is overall coordination or stimulation a simple model is presented which contains the basic ideas

asymmetry in the effects of monetary and government spending shocks contrasting evidence and implications magda kandil 1 introduction recent research on business cycles has produced evidence that demonstrates the asymmetric effects of monetary shocks on economic variables 1 specifically the effect of expansionary monetary shocks on economic variables may be different from that of contractionary shocks the empirical evidence has stimulated efforts to provide an adequate theoretical explanation to the observed asymmetry sources of asymmetry have varied sharply in the theoretical literature primary explanations may be classified into supply side and demand side sources of asymmetry a strand of the theoretical literature has viewed asymmetry of economic fluctuations to be a supply side phenomenon demand shifts along a kinked supply curve are likely to produce varying effects on the economy as to the explanation of the kinked shape of the supply curve competing models offer explanations in one direction some have explained the asymmetric shape of the supply curve by conditions in the labor market this possibility arises in the context of models that advocate the contractual nominal wage rigidity explanation of business cycles the stipulation of wage contracts may allow for asymmetric wage indexation for example if wages are more responsive to expansionary demand shocks compared to contractionary shocks asymmetric wage indexation is consistent with a kinked supply curve in labor and output markets consequently expansionary demand shocks are likely to move the economy along a steeper supply curve 2 alternatively supply side asymmetry may be attributed to conditions in the p roduct market that differentiate price adjustment in the upward and downward directions faced with menu costs firms may be inclined for more frequent and larger adjustments of prices in the upward compared to the downward direction this possibility also is consistent with a steeper supply curve in the face of positive demand shocks compared to negative shocks 3 another line of the theoretical explanations of asymmetric economic fluctuations has emphasized possible asymmetry on the demand side of the economy conditions in the money and or goods markets may differentiate the response of aggregate demand to positive and negative shocks 4 this possibility differentiates the size of aggregate demand shifts in the face of expansionary and contractionary shocks in the absence of supply side asymmetry demand side asymmetry differentiates the severity of economic fluctuations in the face of positive and negative shocks the primary difference between demand side and supply side explanations concerns the output and inflationary effects in response to asymmetry supply side asymmetry produces a trade off between the asymmetric effects of demand shocks on output and their inflationary effects on wages and or prices the response of output growth is larger in the face of demand contraction compared to expansion concurrently the inflationary effect of demand shifts exceeds the deflationary effect on nominal wage and or price in contrast demand side asymmetry produces a positive correlation between the asymmetric effects of demand shocks on real output growth and nominal wage and price inflation that is larger output contraction relative to expansion correlates with smaller inflation relative to deflation of the nominal wage and price in the face of demand shocks the purpose of this investigation is to contrast asymmetry on the demand and supply sides in the face of two specific demand shocks monetary and government spending shocks demand and or supply conditions may differentiate the expansionary and contractionary effects of monetary and fiscal policies the article s analysis will highlight the specifics of this asymmetry the empirical evidence sheds some light on potential explanations of this asymmetry as follows conditions in the credit market and the behavior of ricardian consumers may differentiate the effects of expansionary and contractionary government spending shocks on aggregate demand

some instability puzzles in kaleckian models of growth and distribution a critical survey we tackle the issue of the possible instability of the kaleckian distribution and growth model distinguishing between keynesian and harrodian instability we review various mechanisms that have been proposed by critics of the kaleckian model to tame harrodian instability while bringing back the rate of utilisation to its normal rate we find that the mechanisms that have been suggested are far from convincing therefore we conclude that it may be premature for the critics of the kaleckian model to dismiss the endogeneity of the rate of capacity utilisation in long run growth equilibrium copyright the author 2010 published by oxford university press on behalf of the cambridge political economy society all rights reserved oxford university press

the asymmetric stabilizing effects of price flexibility historical evidence and implications the evidence of business cycles across a sample of industrial countries indicates asymmetry in the output and price adjustments to aggregate demand shocks in the pre and post war periods upward price flexibility is significant in moderating output fluctuations across countries in the pre and post war periods nonetheless the effect of upward price flexibility in accelerating trend price inflation is more evident across countries in the post war period compared to the pre war period the combined evidence is consistent with a steeper supply curve in the face of expansionary demand shocks that increases the stabilizing effect of upward price flexibility in contrast a flatter supply curve in the face of negative demand shocks has countered the stabilizing function of downward price flexibility which appears insignificant across countries in the pre and post war periods in addition a slower demand response to price change during recessions has further reinforced the contractionary effect on output d