new human resource management practices complementarities and the impact on innovation performance in this paper we take our theoretical point of departure in recent work in organisational economics on systems of human resource management hrm practices we develop the argument that just as complementarities between new hrm practices influence financial performance positively there are theoretical reasons for expecting them also to influence innovation performance positively we examine this overall hypothesis by estimating an empirical model of innovation performance using data from a danish survey of 1 900 business firms using principal component analysis we identify two hrm systems which are conducive to innovation in the first one seven of our nine hrm variables matter almost equally for the ability to innovate the second system is dominated by firm internal and firm external training of the total of nine sectors that we consider we find that the four manufacturing sectors correlate with the first system firms belonging to wholesale trade and to the ict intensive service sectors tend to be associated with the second system

the effects of human resource management practices on productivity a study of steel finishing lines the authors investigate the productivity effects of innovative employment practices using data from a sample of thirty six homogeneous steel production lines owned by seventeen companies the productivity regressions demonstrate that lines using a set of innovative work practices which include incentive pay teams flexible job assignments employment security and training achieve substantially higher levels of productivity than do lines with the more traditional approach which includes narrow job definitions strict work rules and hourly pay with close supervision their results are consistent with recent theoretical models which stress the importance of complementarities among work practices

technological learning environments and organizational practices cross sectoral evidence from britain this study explores the co occurrence of technological and organizational learning processes by analyzing the adoption and use of four types of human resource management hrm practices rewarding problem solving top down management and decentralization in the 1990s across different technological learning environments using a sample of british workplaces we show that the level of use of diverse hrm practices aimed at creating different learning incentives is persistently heterogeneous across technological learning environments suggesting that hrm forms an essential part of the technological learning structure of firms copyright 2011 the author 2011 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

hrm practices r d expenditure and innovative investment evidence from the uk s 1990 workplace industrial relations survey wirs uk labour flexibility is often portrayed as necessary for an innovative economy using evidence from the uk s 1990 workplace industrial relations survey we investigate the relationships between firms human resource management practices and innovation our results suggest that low road hrm practices short term contracts etc are negatively correlated with investment in r d and new technology high road work practices high commitment organization and other systems are positively correlated with investment in r d and new technology copyright 1999 by oxford university press

peer pressure and partnerships partnerships and profit sharing are often claimed to motivate workers by giving them a share of the pie but in organizations of any significant size the free rider effects would seem to choke off

more labour market flexibility for more innovation evidence from employer employee linked micro data this paper examines labour market flexibility in various definitions and its impact on innovation the results demonstrate that the relationship strongly depends on the type of innovation as well as the predominant innovation regime in which a company operates thereby labour market flexibility does not influence innovation in an entrepreneurial innovation regime characterised by high competition low market entry barriers and generally available knowledge that might explain why the silicon valley has been successful despite of having a labour market with a strong strong hire and fire mentality in contrast labour market flexibility significantly reduces the likelihood of innovation in a routinised innovation regime with leading innovators and high entry barriers similar to the us automobile industry and steel districts that did not succeed these findings emphasise that the currently discussed structural labour market reforms might hamper innovation as technological change still requires a level of security and stability

green goals and full employment are they compatible abstract two empirical correlations are studied one between economic growth and environmental impacts and the other between the lack of economic growth and unemployment it is demonstrated that at a global level economic growth is strongly correlated with environmental impacts and barriers to fast decoupling are large and numerous on the other hand low or negative growth is highly correlated with increasing unemployment in most market economies and strategies to change this lead to difficult questions and tradeoffs the coexistence of these two correlations which have rarely been studied together in the literature on green growth degrowth and a growth justifies ambivalence about growth to make key environmental goals compatible with full employment the decoupling of environmental impacts from economic output has to be accompanied by a reduction of dependence on growth in particular strategies to tackle unemployment without the need for growth several of which are studied in this article need much more attention in research and policy

the effects of unions on investment and innovation evidence from wirs the above is representative of much popular discussion of the effects of unions on investment and innovation in the professional literature the view that unions deter investment by expropriating quasi rents is also commonplace see e g simons i944 baldwin i983 grout i984 in addition it is argued that union foisted restrictive work practices might make investment a more costly process see e g denny and nickell i989 in recent years the above theoretical notions have appeared to receive some empirical support in that in the united states the level of the investment capital ratio does appear to be lower in union firms see hirsch i988 and references therein in this paper we use information contained in the i 984 workplace industrial relations survey in order to investigate the actual impact of unions on investment the rest of the paper is organised as follows in section i i we informally review the alternative channels through which unions might affect investment section i 2 contains a simple theoretical model of investment which embodies all the alternative channels our results are to be found in section ii and finally some conclusions are contained in section iii

corporate governance and innovation a survey abstract the traditional economics of innovation inspired by schumpeter and more recent advances on his work seem unable to explain why firms with similar external conditions may show greatly different performance in innovation contrastingly the literature on corporate governance provides some useful insights for understanding corporate innovation activity to the extent that such literature examines the economic effects of different modes of coordination between firm members the process through which individuals integrate their human and physical resources within the firm is central to the dynamics of corporate innovation this paper provides the first survey of the literature on this issue we start by discussing how various theoretical approaches to the analysis of the firm deal with technological innovation we then describe three main channels corporate ownership corporate finance and labour through which a system of corporate governance shapes a firm s innovation activity finally we examine the relationship between country level institutional settings national patterns of corporate governance and the aggregate innovation activity of corporations we conclude by suggesting that future research should focus more deeply on the interrelation between the various dimensions of corporate governance and on their joint effect on firm innovation

okun s law theoretical foundations and revised estimates okun s law has been accepted as an empirical regularity that predicts a 3 percentage point increase in output for every 1 point reduction in the unemployment rate but only because other facts such as weekly hours induced labor supply and productivity tend to rise as well when output gaps are estimated for the u s economy with a production function approach using two different data sets for potential output and nairu it is found that the marginal contribution of a 1 point reduction in unemployment is only about two thirds percent increase in output changes in weekly hours and capacity utilization have independent effects on the output gap copyright 1993 by mit press

britain s industrial performance since 1960 underinvestment and relative decline this article argues first that britain s industrial performance since i960 has been relatively poor secondly that despite the views of crafts and others the deindustrialisation which has resulted from this relatively poor industrial performance is a serious problem for the whole economy not just for the industrial sector itself thirdly that neither the specific problem of deindustrialisation nor the consequent general problem of continued relative economic decline were solved in the 1980s and fourthly that the key reason why british industry has been doing relatively poorly has been underinvestment in manufacturing this underinvestment has been allowed to persist by the lack of any strong modernising forces within british society with the trade union movement having been either too weak or too defensive and with government policy at best being rather ineffectual and at worst positively harmful the reasons for this policy failure lie in britain s economic history and in the resulting distorted nature of both the economy and society this fundamental problem of a lack of any strong modernising force has if anything been exacerbated since 1979

modes of labor flexibility at firm level are there any implications for performance and innovation evidence for the swiss economy the aim of this study is to define and measure numerical and functional labor flexibility at the firm level and investigate empirically the impact of each of these flexibility modes on performance and innovation measures as well as the interrelationship between them our estimation equation contains besides the classical production factors labor and physical capital information and communication technologies ict capital human capital variables for flexible organizational practices as well as measures for numerical labor flexibility the empirical investigation is based on data for about 1400 swiss firms copyright 2005 oxford university press

labor market regulation the diversity of knowledge and skill and national innovation performance abstract the diversity of knowledge and skill is an important element of a national system of innovation we propose a theory of how certain labor market institutions affect diversity and through that route affect levels of innovation specifically unemployment protection up encourages diversity by reducing the risk burden of a broad range of learning or human capital investment for that reason up fosters innovation employment protection ep reduces the risk burden of a much narrower range of learning for this reason it will not enhance diversity to the extent up does and it may actually depress overall diversity and innovation our approach differs from previous research on labor market insurance and skill formation much of which has dealt with a distinction between general and specific skills and which has treated the effects of up and ep as similar estimating the effects of up and ep on patenting for 25 oecd countries over 24 years we find a positive effect from up a negative effect from ep and evidence that the up effect is mediated by diversity of skill

the dynamic effects of aggregate demand and supply disturbances we interpret fluctuations in gnp and unemployment as due to two types of disturbances disturbances that have a permanent effect on output and disturbances that do not we interpret the first as supply disturbances the second as demand disturbances demand disturbances have a hump shaped mirror image effect on output and unemployment the effect of supply disturbances on output increases steadily over time peaking after two years and reaching a plateau after five years

economies of scale and utilization in the swiss electric power distribution industry economies of scale and utilization in the swiss electricity distribution industry are analysed a translog variable cost function was estimated using panel data for a sample of 39 municipal utilities over the period 1988 1991 economies of both scale and utilization appear to exist in the distribution of electricity both for small medium and large sized utilities thus the empirical evidence suggests sub additivity of the cost function over the relevant range of output for the swiss electricity distribution utilities a necessary condition for a natural monopoly to exist

returns to scale from variable and total cost functions abstract estimates of the returns to scale from a variable cost function evaluated at the actual and optimal capital stocks and a total cost function are presented the estimates generally differ depending in part upon the output at which they are evaluated

the relation between energy and non energy inputs in india s manufacturing industries the purpose of this paper is to examine the substitution possibilities among energy inputs and other non energy factors of production in response to price changes we relate this study to india s manufacturing industries this is of special interest since in the recent years indian industries have been gradually moving towards a high energy intensive structure of production in 1970 71 the mining and the manufacturing sector accounted for 52 9 per cent of the total commercial energy consumed in india in coal equivalent terms 8 p 1301 in this study we compute cross and own price elasticities of demand for all inputs a knowledge of the substitution possibilities is of paramount importance in economic planning consider for instance three situations first the effect of rising energy prices will tend to raise the demand for capital if capital and energy are substitute inputs second if energy and capital are complements the higher price for energy will tend to reduce the demand for both new capital equipment and energy thus the availability of cheap and ample supply of energy is significant in determining capital intensity and the future rates of capital formation in the literature on economic development this aspect of the choice of techniques has been by and large neglected third if there are limited substitution possibilities between energy and other inputs the adjustment by industry to higher prices of energy may be quite difficult and costs of production may rise precipitously necessitating a drastic change away from energy based production techniques in section ii of this paper we discuss the technique of analysis and describe the sources of data section iii presents the results and section iv is confined to the concluding remarks

the failure of training in britain analysis and prescription in the last decade education and training et reform has become a major issue in many of the world s industrial powers one theme which runs throughout these reform initiatives is the need to adapt et systems to the changing economic environment these changes include the increasing integration of world markets the shift in mass manufacturing towards newly developed nations and the rapid development of new technologies most notably information technologies education and training are seen to play a crucial role in restoring or maintaining international competitiveness both on the macro level by easing the transition of the workforce into new industries and at the micro level where firms producing high quality specialized goods and services require a well qualified workforce capable of rapid adjustment in the work process and continual product innovation this paper will highlight the need for policy makers and academics to take account of the two way nature of the relationship between et and the economy

factor substitution and economies of scale and utilisation in kuwait s crude oil industry abstract the cost structure of the crude oil industry in kuwait has been examined with specific focus on factor substitution and economies of scale and utilisation this has been done by estimating translog cost functions both long run and short run using time series data covering the period from 1976 to 1996 the results indicate that the implied production structure is non homothetic and the pattern of scale effect is labour saving but capital and material using the evidence also supports the presence of an induced exogenous technical change which is non neutral labour and capital using and material saving the elasticity of substitution between capital and labour is positive implying that the two inputs are substitute the results also indicate the existence of diseconomies of scale in the production of crude oil but no economies or diseconomies of utilisation

unemployment and output dynamics in cis countries okun s law revisited abstractokun s law is a well known relationship between the change in the unemployment rate and output growth the main objective of this article is to provide a rigorous econometric analysis of okun s law for several cis countries using different models and theoretically justified econometric methods the traditional approach to okun s law estimation using ols regressions does not account for possible endogeneity of regressors and the implied inconsistency of the estimates obtained these problems point out to incorrectness of applications of the standard ols estimation techniques our study addresses these issues by using econometrically justified instrumental variable regression methods the article provides the results and discussions on practical use of okun s relationships for evaluation of average effects of economic growth on the unemployment rate and vice versa importance of accounting for confidence intervals in applications of okun s models to economic development analysis and cross country c

unemployment and other measures of labor market inefficiency a comparison of u k and u s labor markets 1931 96 unemployment is probably the most widely feared phenomenon of our times it represents an enormous waste of human resources reflects an important degree of inefficiency in economic systems and causes a disturbing degree of social distress organisation for economic co operation and development oecd 1994 pp 4 6 i introduction unemployment is undoubtedly one of the most researched areas of economics determinants of the number of unemployed and duration of unemployment the role of unemployment on the depreciation of human capital and on general life satisfaction the interrelationship of unemployment and inflation and unemployment and output okun s law and policies to reduce or even eliminate unemployment are just a few of the areas of research on unemployment the underlying assumption in many studies on unemployment is that there is a very close correspondence between unemployment and labor market inefficiency as witnessed in the quote by the oecd just given although rarely if ever stated there is also the assumption that a given unemployment rate indicates similar levels of inefficiency either across time and or regions or countries unfortunately and somewhat surprisingly this assumption has not been tested thus far 1 given the importance of comparisons of unemployment on the direction of macroeconomic policy of governments it is very important to determine whether unemployment is indeed a good proxy for labor market inefficiency the goal of the article therefore is to examine this issue thus we pose the following key questions 1 to what degree do unemployment rates reflect labor market efficiencies 2 if the goal is to measure relative labor market inefficiency is it meaningful to compare unemployment rates over time and 3 to what degree do differences in unemployment rates across countries reflect differences in labor market inefficiencies basic economic theory shows that inefficiency in any market depends not only on the wedge between supply and demand but also on the elasticities of demand and supply the calculation of so called harberger triangles harberger 1954 of deadweight loss dwl which has a long history in the industrial organization and public finance literatures indicates that for a given wedge between supply and demand the dwl can be very different depending on the elasticities of supply and demand interestingly however studies examining the costs of unemployment do not focus on this basic view of welfare loss studies such as gordon 1973 ahsenfelter 1980 hurd 1980 clark and oswald 1994 murphy and topel 1997 and leslie and blackaby 1999 among others examine the costs of unemployment from an individual perspective but do not measure inefficiency from a market perspective which is the focus of the harberger triangles except for a publication by fortin and bernier 1988 2 we know of no other application of calculating harberger triangles to determine the level of inefficiency in the labor market therefore this article uses labor market data from 1931 to 1996 in the united states and united kingdom to calculate the dwl of unemployment and then compares the estimates of dwl to the unemployment rate to determine how closely related inefficiency and unemployment are 3 the following section investigates the theoretical relationships between unemployment labor supply and demand elasticities and dwl from this discussion we propose two alternative measures of inefficiency the first is the unemployment loss index dwl divided by gross domestic product gdp which indicates how large labor market inefficiency is relative to total output in the economy the second measure is dwl per unemployed person a measure of the potential average gains to employing an unemployed individual section iii outlines the data and methodology used to estimate the elasticities of labor supply and labor demand over time in the united states and united kingdom allowing for changes in the elasticities over time

economies of scale and factor substitution in electricity supply industry a case study of south australia abstract the results support the view that there are cost advantages in retaining etsa s monopoly position the existing economies of scale and the high degree of substitutability between energy and capital imply that a rise in energy prices may not affect the cost of production significantly provided other factor costs do not rise at the same rate and provided demand for electricity grows further it has been observed that improvement in load factor can significantly reduce cost

output and unemployment dynamics in the united states 1950 1985 for us data over 1950 1985 the stochastic components of gnp growth and the unemployment rate appear to be stationary and there is substantial feedback between these variables the unconditional mean rate of unemployment in a joint model thus provides a natural benchmark in discussions of the business cycle a bivariate var model is used to describe output unemployment dynamics to estimate the degree of persistence of output innovations and to decompose output into trend and cycle the bivariate results are interpreted using a restricted var and it is shown that a closely related cyclical measure can be obtained directly from the okun s law equation

a measure of the u s output gap abstract an autoregressive distributed lag regression of the unemployment rate on output growth is structurally stable over the 1890 1986 period inverting this equation yields a measure of the output gap which is not subject to the spurious detrending problem

an analysis on the structural stability of okun s law a cross country study okun s law postulates an inverse relationship between movements of the unemployment rate and the real gross domestic product gdp this article investigates okun s law for 15 oecd countries and checks for its the structural stability by using data on employment and the labour force whether structural instability is caused either from the demand side or supply side is inferred

how do different drivers of r d investment in foreign locations affect domestic firm performance an analysis based on swiss panel micro data the aim of this article is to investigate the differences between specific motives of rd 2817 companies shows first that factors related to firm specific knowledge oriented advantages are more important for explaining the likelihood of foreign r d activities than factors reflecting disadvantages related to home location second knowledge oriented motives of foreign r d positively influence the innovation performance of domestic firms whereas market and resource oriented strategies have a positive impact on labor productivity copyright 2011 the author 2011 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

factor substitution approach to testing the time variations in production the case of taiwan s manufacturing this paper is devoted to studying the time variations in the series of elasticities of factor substitution which in a sense manifests changes in production technology and structure a lkm translog cost function model is used to estimate the allen uzawa elasticities of substitution for taiwan s manufacturing sector in 1965 91 the variations are analysed using a regression model which incorporates the linear spline setting and income variable empirical results indicate that obvious structural breaks in the elasticity series conform to major exogenous disturbances such as worldwide energy crises and developmental policy changes

okun s law in panels of countries and states this article contributes to the empirical literature of okun s law in three respects first in contrast to the limited data used in the existing studies we employ two extensive across countries and across states i e within a country panel data sets to investigate the validity of okun s law second the use of the pooled mean group pmg estimator permits us not to pre filter the data as often done in the current literature and can take into account the possibility of cointegration between unemployment and output third in addition to the short run relationship or cyclical components between unemployment and output we also estimate the long run linkage between these two important variables empirical results show that unemployment and output are long run cointegrated irrespective of using country or state level data moreover the unemployment output linkages are found to be negative and highly significant both in the short and long run our results not only confirm the validity of okun s law

a traditional interpretation of macroeconomic fluctuations under the traditional interpretation of macroeconomic fluctuations aggregate demand shocks move output and prices in the same direction while aggregate supply shocks move output and prices in opposite directions this paper examines the joint behavior of u s output unemployment prices wages and nominal money and asks whether it is consistent with this interpretation the answer is a qualified yes

economic growth technical change biases and the elasticity of substitution a test of the de la grandville hypothesis a recent development in microeconomic theory suggests that the size of the elasticity of substitution between factors is relevant to economic growth this study undertakes an empirical investigation of this proposition comparing two economies the united states and south korea the authors test results support the de la grandville hypothesis that the elasticity of substitution is a potent explanatory variable of economic growth this inquiry also provides a clue to the puzzle that the u s elasticity of substitution between labor and capital is well below unity whereas that of south korea is close to unity nonetheless the u s factor shares have tended to remain fairly stable whereas the distributive shares of south korea seem to have changed in favor of capital their findings indicate that a high elasticity of substitution is a bad signal for the distribution of income under the paradigm of modern technology copyright 1991 by mit press

effects of pro growth policies on employment evidence of regional disparities the main objective of our research is to study the direct impact of pro growth economic policies on employment creation globally and regionally as evidence has countered policy makers expectation

a cross country analysis of the okun s law coefficient convergence in europe the paper examines whether or not evidence is consistent with convergence of the okun s law coefficient olc among several alternative groupings of european economies a two step empirical strategy is employed the first step obtains rolling regression estimates of the olc for individual european countries the second step examines how the cross country variance of the olc evolves over the decade until 2002 in the selected country groupings evidence is found consistent with convergence of the olc among northern european countries and among countries with centralized wage bargaining but an absence of convergence in other country groups

input substitution in thailand s manufacturing sector implications for energy policy abstract input demand and substitution elasticities for five manufacturing sector industries in thailand are estimated using a three factor capital labour and energy translog cost function covering the first oil shock period 1974 1977 in all cases the demand is elastic for energy close to unity for labour and inelastic for capital capital and energy are always substitutes as are capital and labour the labour intensive and comparative advantage based industries showed greater responsiveness to energy price changes relative to the capital intensive and protected industries in the sense that the former two can substitute capital and labour for energy whereas the latter two can substitute only capital

energy conservation in electricity generation a case study of the electricity and water industry in kuwait this paper has examined possibilities of energy conservation in the generation of electricity and water in kuwait this has been done through analysing the underlying production structure by employing a translog flexible cost function and using series data the results show that in the absence of changes in factor prices fuel intensity of electricity and water is expected to increase with increase in output furthermore capital and fuel are found to be substitutes overall the evidence suggests that energy conservation can be achieved by using fuel prices as instruments this is likely to induce demand for new capital and hence promote productivity gains

asymmetry in okun s law in this paper we support the proposition that the output unemployment relationship as represented by okun s law is asymmetric okun s coefficients are defined based on a dynamic model that allows for asymmetry in the relationship between cyclical output and unemployment using data from the united states for the post war period our results show that the short run effects of positive cyclical output on cyclical unemployment are quantitatively different from those of negative ones and the data are consistent with the proposition that cyclical unemployment is more sensitive to negative than to positive cyclical output several theoretical

energy substitution in u s manufacturing a regional approach one response of economists to energy market developments of the 1970s was to launch a series of studies in which the objective was to estimate energy substitution parameters characterizing important sectors of the u s economy relatively high substitution elasticities between energy and other inputs would permit firms to mitigate the effects of energy price increases by shifting to less energy intensive factor proportions the seminal work in this effort was carried out by berndt and wood 5 griffin and gregory 14 pindyck 28 halvorsen 16 and fuss 12 the research was substantially abetted by developments in production theory where the work of mcfadden 23 diewert 8 and christensen jorgenson and lau 6 yielded new and flexible production and cost function forms empirical work on energy substitution has continued 2 for the most part the data analyzed have been highly aggregative applying to say total u s manufacturing or perhaps to the various two digit sectors comprising that total to date little effort has been given to investigating energy substitution relationships at the regional level in the u s this is unfortunate since we know that the u s economy is actually composed of regions which are differently endowed with resources have developed at different rates and are comprised of different sectoral mixes the distinct possibility exists that regions differ in terms of the way in which energy inputs relate to other inputs in production furthermore even though the energy crisis may seem to be a national phenomenon national policy responses are worked out within a context of shifting and colliding regional conflicts stemming in large part from real or imagined perceptions of how energy market developments impact different regions it would seem especially important therefore to identify

cyclical output cyclical unemployment and okun s coefficient a new approach estimates of okun s coefficient are obtained using new estimates of cyclical gnp and cyclical unemployment rates for the post war usa empirical estimates of the coefficient are near 0 25 somewhat smaller in magnitude than other recent estimates obtained applying similar econometric techniques to different estimates of cyclical output and unemployment tests fail to reject the hypothesis of parameter stability across an hypothesized break between the third and fourth quarters of 1973 suggesting similar relationships between cyclical output and unemployment both before and after the supply shocks of the 1970s

economies of scale and utilization in electricity generation in kuwait cost structure of electricity generation in kuwait has been examined with specific focus on the economies of scale and utilization this has been done by estimating a translog variable cost function using time series data covering the period from 1965 to 1990 the results indicate the existence of diseconomies of scale in the generation of electricity but no economies or diseconomies of utilization

fossil fuel flexibility in west european power generation and the impact of system load factors this paper analyzes short run interfuel substitution in west european power generation and the impact of system load factors on fossil fuel choice the problems are studied within a restricted translog cost share model the paper concludes that interfuel substitution in existing power plants is substantial especially that between oil and gas this is consistent with the notion that short run fuel substitution takes place in dual or multi fired plants by switching load between different single fired plants and by some conversions of power plants to be able to burn alternate fuels the empirical investigation also indicates that the system load factor is a notable determinant of fossil fuel choices in west europe and the paper ends with an assessment of the fuel consequences of some load management schemes in the region

is labour market flexibility harmful to innovation in a neoclassical framework one can argue that unemployment can be reduced by means of institutional changes that allow for a better working of the labour market and notably by achieving downward wage flexibility i argue that although various policy recommendations about removing labour market rigidities are indeed advantageous in the short trun they are detrimental from a schumpeterian perspective since they discourage product and process innovation reduced innovation efforts will in turn weaken the supply side strength of an economy the paper explores the implications of schumpeter s notion of creative destruction and of schmookler s hypothesis of demand pulled innovations borrowing from recent empirical innovation research

good and bad institutions is the debate over cross country firm level evidence from the textile industry using firm level data from nine developing countries we demonstrate that certain institutions like restrictive labour market regulations that are considered bad for economic growth might be beneficial for production efficiency whereas good business environment which is considered beneficial for economic growth might have an adverse impact on production efficiency we argue that our results suggest that there might be significant difference in the macro and micro impacts of institutional quality such that the classification of institutions into good and bad might be premature

energy capital substitutability complementarity the dichotomy abstract changes in the price of energy affect not only the demand for energy but also the rates of capital formation and labour utilization these changes depend on the functional relationship between energy and the primary factor inputs in particular the relationship between energy and capital has been characterized by major conflicting evidence time series data classify the two inputs as complements by contrast pooled cross section studies conclude that capital and energy aresubstitutes in the production process in this case higher priced energy will stimulate the demand for investment while several reconciliation attempts on this disparity deserve marked attention the most prominent explanation is that time series studies reflect short term relationships and cross section analyses capture long term effects

testing okun s law theoretical and empirical considerations using fractional integration abstractfull employment remains at the center of any economic policy following okun s conclusion regarding the trade off relation between unemployment and real gross national product growth new s

the economics of technical change this paper reviews the recent rapidly growing literature on technical change in the economy it concentrates on innovations and their diffusion at firm and industry level since this was the area designated as relatively weak in earlier literature surveys the review argues that the extensive empirical evidence and theoretical analysis now available presents a basic challenge to neoclassical theory after indicating some weaknesses in the neo schumpeterian literature the paper concludes by advocating an experiment with a new form of assessment by neighboring disciplines to economics itself which would take full account of the fundamental issues at stake in this modern methodenstreit c 1994 academic press inc copyright 1994 by oxford university press