the impact of government size on economic growth a threshold analysis we examine the nature of the relationship between government size and economic growth and identify the optimal level of government size using a large dataset through a novel and very general non linear panel generalized method of moments approach we show that this relationship is statistically significant above and below the optimal level even after splitting our sample to developed and developing countries finally we find an asymmetric impact of government size on economic growth in both developed and developing countries around the estimated threshold

carbon pass through in the electricity sector an econometric analysis abstract we conduct an econometric analysis to investigate the carbon pass through in the greek electricity sector for this reason we utilize a rich micro level panel dataset including hourly data for 24 thermal power plants spanning the period from january 2014 to december 2017 in order to study the pass through of emissions costs to wholesale electricity prices we employ an instrumental variable approach our findings survived several robustness checks accounting for logged linear and non linear econometric specifications the empirical results indicate the existence of an almost complete pass through revealing that retailers fully internalize the cost of co2 permits this study incurs important policy implications since the complete pass through signify that wholesale electricity prices will increase at least in the short run however the overall effect on retail prices will be mostly affected by the amount of co2 permits and the fuel energy mix

on the examination of non linear relationship between market structure and performance in the us manufacturing industry abstract this paper attempts to investigate the causal link between market structure and industry performance using a micro panel data set of usa manufacturing industries over the period 1958 2007 we employ a novel panel gmm model strongly accounting for endogenous regressors and threshold variable the empirical findings denote the existence of a non monotonic relationship between market structure and total factor productivity tfp our findings call for future research on the impact of market structure on consumer welfare

us unemployment insurance replacement rates during the pandemic abstract we use micro data on earnings together with the details of each state s unemployment insurance ui system to compute the distribution of ui benefits after the uniform 600 federal pandemic unemployment compensation fpuc supplement implemented by the cares act we find that between april and july 2020 76 of workers eligible for regular unemployment compensation have statutory replacement rates above 100 meaning that they are eligible for benefits which exceed lost wages the median statutory replacement rate is 145 we also compute comprehensive replacement rates which account for employer provided non wage compensation and differential tax treatment of labor income and ui 69 of ui eligible unemployed have comprehensive replacement rates above 100 and the median comprehensive replacement rate is 134 the presence of the fpuc has important implications for the incidence of the recession and reverses income patterns which would have otherwise arisen across income levels occupations and industries

the macro effects of unemployment benefit extensions a measurement error approach by how much does an extension of unemployment benefits affect macroeconomic outcomes such as unemployment answering this question is challenging because u s law extends benefits for states experiencing high unemployment we use data revisions to decompose the variation in the duration of benefits into the part coming from actual differences in economic conditions and the part coming from measurement error in the real time data used to determine benefit extensions using only the variation coming from measurement error we find that benefit extensions have a limited influence on state level macroeconomic outcomes we apply our estimates to the increase in the duration of benefits during the great recession and find that they increased the unemployment rate by at most 0 3 percentage point

endogenous timing in duopoly games stackelberg or cournot equilibria abstract simultaneous versus sequential play is studied in an extended game in a preplay stage players decide whether to select actions in the basic game at the first opportunity or to wait until observing their rivals first period actions in one extended game players first decide when to select actions without committing to actions in the basic game the equilibrium has a simultaneous play subgame unless payoffs in a sequential play subgame pareto dominate those payoffs in another extended game deciding to select at the first turn requires committing to an action both sequential play outcomes are the equilibria only in undominated strategies

optimal unemployment insurance in an equilibrium business cycle model abstract the optimal cyclical behavior of unemployment insurance is characterized in an equilibrium search model with risk averse workers contrary to the current us policy the path of optimal unemployment benefits is pro cyclical positively correlated with productivity and employment furthermore optimal unemployment benefits react non monotonically to a productivity shock in response to a fall in productivity they rise on impact but then fall significantly below their pre recession level during the recovery as compared to the current us unemployment insurance policy the optimal state contingent unemployment benefits smooth cyclical fluctuations in unemployment and deliver substantial welfare gains

loyalty discounts and price cost tests abstract we analyze by means of a formal economic model the use of the discount attribution test to assess the competitive effects of loyalty discounts the discount attribution test is a variant of the price cost test where the discount is attributed only to the share of total demand that is regarded as effectively contestable in the model a dominant firm enjoys a competitive advantage over its rivals and uses market share discounts to boost the demand for its own products in this framework we show that the attribution test is misleading or at best completely uninformative our results cast doubts on the applicability of price cost tests to loyalty discount cases

labor market matching with precautionary savings and aggregate fluctuations we analyze a bewley huggett aiyagari incomplete markets model with labor market frictions consumers are subject to idiosyncratic employment shocks against which they cannot insure directly the labor market has a diamond mortensen pissarides structure firms enter by posting vacancies and match with workers bilaterally with match probabilities given by an aggregate matching function wages are determined through nash bargaining we also consider aggregate productivity shocks and a complete set of contingent claims conditional on this risk we use the model to evaluate a tax financed unemployment insurance scheme higher insurance is beneficial for consumption smoothing but because it raises workers outside option value it discourages firm entry we find that the latter effect is more potent for welfare outcomes we tabulate the effects quantitatively for different kinds of consumers we also demonstrate that productivity changes in the model in steady state as well as stochastic ones generate rather limited unemployment effects unless workers are close to indifferent between working and not working thus recent findings are corroborated in our more general setting

competitive conditions and sectors productive efficiency a conditional non parametric frontier analysis abstract the scope of this paper is to build an appropriate nonparametric frontier framework by using time dependent conditional efficiency estimators to investigate how competition and time affect the process of technological change and technological catch up our empirical analysis utilizes a sample of 462 u s 6 digit manufacturing sectors over the period 1958 2009 contrary to the existing studies we apply the probabilistic approach of efficiency measurement to evaluate the dynamic effects alongside with the effects of competition on the sectors technological change and technological catch up levels moreover we estimate the sectors idiosyncratic efficiencies which are an approximation of solow s residual representing the unexplained part of the time dependent conditional measures the empirical results shed new light on the topic and signify that the dynamic effect of competitive conditions has a nonlinear effect on the sectors estimated performance specifically we unveil a u shaped curve between market concentration and technological change implying that the sectors higher concentration levels enhance their technological change levels e g innovation capacity having however a downsize effect on their technological catch up ability moreover the relationship between the sectors market concentration and technological catch up although non linear exhibits an n shaped curve with two turning points lastly the above findings remain robust when we limit our analysis to the capital intensive sectors

does market structure affect labour productivity and wages evidence from a smooth coefficient semiparametric panel model this paper investigates the impact of market structure on labour productivity and wages using a panel data set of us manufacturing industries over the period 1958 2007 to account for nonlinear effects we employ a smooth coefficient semiparametric model scsm we find evidence in support of a nonlinear relationship between market concentration and labour productivity and wages lastly our empirical findings shed new light on the competition labour productivity nexus

is the effect of competition on price dispersion nonmonotonic evidence from the u s airline industry we investigate the effect of competition on price dispersion in the airline industry using panel data from 1993 to 2008 we find a nonmonotonic effect of competition on price dispersion an increase in competition is associated with greater price dispersion in concentrated markets but with less price dispersion in competitive markets an inverse u relationship our empirical findings are consistent with an oligopolistic second degree price discrimination model and encompass contradictory findings in the literature

second mover advantage and price leadership in bertrand duopoly we consider the issue of first versus second mover advantage in differentiated product bertrand duopoly with general demand and asymmetric linear costs we generalize existing results for all possible combinations where prices are either strategic substitutes and or complements dispensing with common extraneous and restrictive assumptions we show that a firm with a sufficiently large cost lead over its rival has a first mover advantage for the linear version of the model we invoke a natural endogenous timing scheme coupled with equilibrium selection according to risk dominance the analysis yields as the unique equilibrium outcome sequential play with the low cost firm as leader

unemployment insurance and short time compensation the effects on layoffs hours per worker and wages we analyze two unemployment insurance systems in one unemployed workers receive benefits while those on reduced hours do not as in north america at least until recently in the other short time compensation is paid to workers on reduced hours as in europe the first system causes inefficient temporary layoffs for some parameters the latter does not but implies inefficient hours per worker some evidence is presented regarding these effects despite policymakers recent enthusiasm for short time compensation the clear implication of this project is that changes should come on the tax not benefit side of the system

von stackelberg and cournot duopoly choosing roles under what circumstances will firms agree on the choice of roles of leader and follower in the von stackelberg duopoly model a key determinant is the slope of the firms reaction function in either price or quantity space the duopolists will disagree over the choice of roles if they have downward sloping reaction functions each will prefer to be the leader they will also disagree if they have upward sloping reaction functions and similar profit functions each will prefer that the other be the leader preferences between von stackelberg and cournot outcomes are also considered

asymmetry in capacity and the adoption of all units discounts abstract in many abuse of dominance antitrust cases the dominant firm adopts pricing schemes involving all units discounts whereas its smaller competitors often use simple linear pricing we provide a game theoretic justification for the observed asymmetry in pricing practices by studying a model in which a firm with full capacity faces a capacity constrained rival the asymmetry in capacity between the firms which gives rise to the captive market allows the dominant firm to take advantage of the quantity commitment through all units discounts while the capacity constrained rival is induced to offer simple linear pricing

endogenous price leadership we consider a linear price setting duopoly game with differentiated products and determine endogenously which of the players will lead and which one will follow while the follower role is most attractive for each firm we show that waiting is more risky for the low cost firm so that consequently risk dominance considerations as in harsanyi and selten a general theory of equilibrium selection in games mit press cambridge ma 1988 allow the conclusion that only the high cost firm will choose to wait hence the low cost firm will emerge as the endogenous price leader

a quantitative analysis of unemployment benefit extensions abstract extensions of unemployment insurance ui benefits have been implemented in response to the great recession this paper measures the effect of these extensions on the unemployment rate using a calibrated structural model featuring job search and consumption saving decisions skill depreciation and ui eligibility the ongoing ui benefit extensions are found to have raised the unemployment rate by 1 4 percentage points which is about 30 of the observed increase since 2007 moreover the contribution of the ui benefit extensions to the elevated unemployment rate increased during 2009 2011 while the number of vacancies recovered the successive extensions kept search intensity down

labor market policies during an epidemic abstract we study the positive and normative implications of labor market policies that counteract the economic fallout from containment measures during an epidemic we incorporate a standard epidemiological model into an equilibrium search model of the labor market to compare unemployment insurance ui expansions and payroll subsidies in isolation payroll subsidies that preserve match capital and enable a swift economic recovery are preferred over a cost equivalent ui expansion when considered jointly however a cost equivalent optimal mix allocates 20 percent of the budget to payroll subsidies and 80 percent to ui the two policies are complementary catering to different rungs of the productivity ladder the small share of payroll subsidies is sufficient to preserve high productivity jobs but it leaves room for social assistance to workers who face inevitable job loss

the value of life and the rise in health spending over the past half century americans spent a rising share of total economic resources on health and enjoyed substantially longer lives as a result debate on health policy often focuses on limiting the growth of health spending we investigate an issue central to this debate is the growth of health spending a rational response to changing economic conditions notably the growth of income per person we develop a model based on standard economic assumptions and argue that this is indeed the case standard preferences of the kind used widely in economics to study consumption asset pricing and labor supply imply that health spending is a superior good with an income elasticity well above one as people get richer and consumption rises the marginal utility of consumption falls rapidly spending on health to extend life allows individuals to purchase additional periods of utility the marginal utility of life extension does not decline as a result the optimal composition of total spending shifts toward health and the health share grows along with income in projections based on the quantitative analysis of our model the optimal health share of spending seems likely to exceed 30 percent by the middle of the century

the optimal timing of unemployment benefits theory and evidence from sweden this paper provides a simple yet robust framework to evaluate the time profile of benefits paid during an unemployment spell we derive sufficient statistics formulae capturing the marginal insurance value and incentive costs of unemployment benefits paid at different times during a spell our approach allows us to revisit separate arguments for inclining or declining profiles put forward in the theoretical literature and to identify welfare improving changes in the benefit profile that account for all relevant arguments jointly for the empirical implementation we use administrative data on unemployment linked to data on consumption income and wealth in sweden first we exploit duration dependent kinks in the replacement rate and find that if anything the moral hazard cost of benefits is larger when paid earlier in the spell second we find that the drop in consumption affecting the insurance value of benefits is large from the start of the spell but further increases throughout the spell in trading off insurance and incentives our analysis suggests that the at benefit profile in sweden has been too generous overall however both from the insurance and the incentives side we find no evidence to support the introduction of a declining tilt in the profile

productivity growth and factor prices in east asia the industrial revolution in several east asian countries over the last three decades is one of the most important economic events in the postwar era several recent growthaccounting exercises have found that their extraordinary rate of output growth was due primarily to an equally impressive rate of factor accumulation with little due to technological progress see alwyn young 1992 1995 jong il kim and lawrence lau 1994 susan collins and barry bosworth 1996 since these studies suggest that factor accumulation has been the lead actor in east asia s growth many economists have reached the conclusion that the industrial revolution in east asia can largely be explained in terms of transition dynamics in a neoclassical growth framework see e g paul krugman 1994 n gregory mankiw 1995 if this view is correct the lesson from east asia s experience is that there are no easy solutions for a poor country that seeks to join the league of wealthy nations low levels of investment and education may be the result of bad policies but once proper policies are enacted a poor country faces the grim prospect of a further decline in its already low standards of living as it devotes more resources to investment and education the central point of this paper is that if east asia s growth was largely driven by capital accumulation with little technological progress the return to capital should have fallen dramatically as capital accumulation encounters diminishing returns for example the capital output ratio for korea computed from the national accounts has increased at an average rate of 3 4 percent per year from 1966 to 1990 while that of singapore has increased at an average rate of 3 7 percent per year from 1968 to 1990 by dividing the share of payments to capital in total income by the capital output