can falling supply explain the rising return to college for younger men a cohort based analysis although the college high school wage gap for younger u s men has doubled over the past 30 years the gap for older men has remained nearly constant in the united kingdom and canada the college high school wage gap also increased for younger relative to older men using a model with imperfect substitution between similarly educated workers in different age groups we argue that these shifts reflect changes in the relative supply of highly educated workers across age groups the driving force behind these changes is the slowdown in the rate of growth of educational attainment that began with cohorts born in the early 1950s in all three countries

the effect of immigration along the distribution of wages this paper analyses the effect immigration has on wages of native workers unlike most previous work we estimate wage effects along the distribution of wages we derive a flexible empirical strategy that does not rely on pre allocating immigrants to particular skill groups in our empirical analysis we demonstrate that immigrants downgrade considerably upon arrival as for the effects on native wages we find that immigration depresses wages below the 20th percentile of the wage distribution but leads to slight wage increases in the upper part of the wage distribution the overall wage effect of immigration is slightly positive the positive wage effects we find are although modest too large to be explained by an immigration surplus we suggest alternative explanations based on the idea that immigrants are paid less than the value of what they contribute to production generating therefore a surplus and we assess the magnitude of these effects

market structure firm characteristics and innovative activity in this study the determinants of product innovation by west german firms operating in the metal industry are investigated a strong positive impact of imperfect competition on innovative activity is estimated aside from competition and barriers to entry factors like the ownership structure of a firm internal finance and the skill level of the workforce are considered one result is that firms led by hired managers tend to innovate less intensively than owner managed enterprises copyright 1989 by blackwell publishing ltd

size age and activity sector on the growth of the small and medium firm size although corporate growth is one of the most researched subjects in different areas of economic science it is not currently based on a general theory or generally accepted conceptual definition in spite of this growth has usually been considered an essential objective for a firm contributing to its survival and competitiveness this work aims to provide a more in depth study of the factors that condition the growth of small and medium sized firms by offering some empirical evidence that will contribute to its modelling especially in relation to the influence of size age and activity sector in this context we shall attempt to contrast the validity of gibrat s approach and the learning theory

innovation and diffusion in small firms theory and evidence the article provides an inventory of the strengths and weaknesses of small firms in a dynamic context to do this it considers verbal accounts of the processes of innovation and diffusion as well as quantitative studies testing cause effect relations it consider both economic and noneconomic factors concerning issues of motivation perception and knowledge first an overall summary is given of the characteristics of small business compared with large business as a basis for an assessment of strengths and weaknesses perhaps the most important characteristic of small business is its diversity and the article gives the conditions and sources of it other core characteristics are small scale personality and independence of the small firm from these derived characteristics strengths and weaknesses and core strategies can be inferred from the perspective of the firm strengths and weaknesses are subsequently analysed for the successive stages of innovation invention development tooling production introduction to practice market strengths and weaknesses in diffusion are analysed for the successive stages in the adoption process as proposed by rogers reference is made to theory and to empirical studies from the literature and from research by the present author

firm siz and efficiency in inovation reply economic activity moved away from large firms to small predominantly young firms in the 1970s and 1980s acs and audretsch 1993 and carlsson 1992 show evidence of manufacturing industries in countries in varying stages of economic development carlsson mentions two explanations for this shift the first deals with fundamental changes in the world economy from the 1970s onwards these changes relate to the increase of global competition the rising degree of uncertainty and the growth in market fragmentation the second deals with changes in the character of technological progress he shows that flexible automation has various effects resulting in a shift from large to smaller firms the pervasiveness of these changes results in a structural shift which affects the economies of all industri

immigration wage effects by origin we estimate the direct partial wage effects of immigrant induced increases in labor supply using the national skill cell approach with longitudinal records drawn from norwegian administrative registers the results show overall negative but heterogeneous wage effects with larger effects on immigrant wages than on native wages and with native wages more responsive to inflows from nordic countries than from developing countries these patterns are consistent with natives and nordic citizens being close substitutes while natives and immigrants from developing countries are imperfect substitutes estimates are sensitive to accounting for effective immigrant experience selective native participation and variation in demand conditions and native labor supply

should germany have built a new wall macroeconomic lessons from the 2015 18 refugee wave abstract in 2015 2016 germany experienced a wave of predominantly low skilled refugee immigration we evaluate its macroeconomic and distributional effects using a quantitative overlapping generations model calibrated using german micro data to replicate education and productivity differentials between foreign born and native workers workers are modelled as imperfect substitutes in aggregate production leading to endogenous wage differentials we simulate the dynamic effects of this refugee wave with specific focus on the welfare impact on low skilled natives our results indicate that the small losses this group suffers can be compensated by welfare gains of other parts of the native population

art market inefficiency art is often used as an investment vehicle given the importance of market efficiency in finance we use a large auction based index to test whether the art market is weakly efficient evidence reveals that returns on artworks exhibit high positive auto correlation we attribute this result to price truncation resulting from unobservable reserve prices in auctions we conclude that the art market is not efficient mainly because price formation is opaque to outsiders who lack information on unsold artworks

how did japanese investments influence international art prices we test the luxury consumption hypothesis of ait sahalia parker and yogo 2004 using a unique international art price import export flow and stock market data set we find that the demand for art by japanese collectors is positively correlated with art prices and japanese stock prices this correlation is magnified during the bubble period of the japanese economy the mid 1980s to the early 1990s and gains even further strength for works of art typically favored by japanese collectors our results suggest that japanese investors or japanese asset markets indeed affect international art prices especially during the bubble period and its aftermath

r d in smes a paradox this paper has three objectives 1 to survey the relevant literature addressing the apparent paradox of research development investments carried out within small and medium enterprises 2 to provide focused summaries of the articles in this special issue 3 to draw some general conclusions in terms of policy implications

services outsourcing and innovation an empirical investigation we provide a comprehensive empirical analysis of the links between international services outsourcing domestic outsourcing profits and innovation using plant level data we find a positive effect of international outsourcing of services on innovative activity at the plant level such a positive effect can also be observed for domestic outsourcing of services but the magnitude is smaller this makes intuitive sense as international outsourcing allows more scope for exploiting international factor price differentials therefore giving the establishment higher profits and more scope to restructure production activities towards innovation we also find that international outsourcing has a positive effect on profitability as predicted by theory while this is not true for domestic sourcing the results are robust to various specifications and an instrumental variables analysis

firm size and efficiency in innovation comment on van dijk et al van dijk et al found different results for some variables explaining the large small firm innovation advantage in a number of acs and audretsch publications their own research adds to this variety however the differences van dijk et al found between the acs and audretsch studies can be largely attributed to specification and sample differences the same applies to the observed differences between acs and audretsch and van dijk et al

the impact of immigration why do studies reach such different results we classify the empirical literature on the wage impact of immigration into three groups where studies in the first two groups estimate different relative effects and studies in the third group estimate the total effect of immigration on wages we interpret the estimates obtained from the different approaches through the lens of the canonical model to demonstrate that they are not comparable we then relax two key assumptions in this literature allowing for inelastic and heterogeneous labor supply elasticities of natives and the downgrading of immigrants downgrading occurs when the position of immigrants in the labor market is systematically lower than the position of natives with the same observed education and experience levels downgrading means that immigrants receive lower returns to the same measured skills than natives when these skills are acquired in their country of origin we show that heterogeneous labor supply elasticities if ignored may complicate the interpretation of wage estimates and particularly the interpretation of relative wage effects moreover downgrading may lead to biased estimates in those approaches that estimate relative effects of immigration but not in approaches that estimate total effects we conclude that empirical models that estimate total effects not only answer important policy questions but are also more robust to alternative assumptions than models that estimate relative effects

sentiment and art prices we hypothesize the existence of a slow moving fad component in art prices using unique panel survey data on art market participants confidence levels in the outlook for a set of artists we find that sentiment indeed predicts short term returns

measuring r d in small firms how much are we missing the oecd surveys on r d are considerably biased towards underestimating r d in small firms this conclusion is derived from the author s comparison between the official dutch r d survey and the findings of his own survey among 3000 firms although being based on dutch observations only the author s considerations have an impact on other oecd countries since the official dutch r d survey is fully compatible with those in other countries the findings call into question the results from a number of empirical studies bearing on subjects such as market structure and r d firm size and r d or r d and growth

an analysis of the composition of r d spending research and development encompasses a myriad of activities generally research is the primary search for technical or scientific advancement and development is the translation of such advancement into product of process innovations the national science foundation has fostered an even finer breakdown basic research applied research and development in practice however r d is more heterogeneous than these labels imply the research fields associated with basic research include areas in both the physical and biological sciences applied research and development projects relate to product groups as diverse as all the activities in the industrial sector nevertheless most previous empirical studies of the microeconomic aspects of r d have treated r d spending as a single homogeneous activity consequently a generally acceptable set of variables has developed for explaining inter firm levels of r d spending but virtually nothing is known about the determinants of the inter firm composition of r d

buying beauty on prices and returns in the art market this paper investigates the price determinants and investment performance of art we apply a hedonic regression analysis to a new data set of more than one million auction transactions of paintings and works on paper based on the resulting price index we conclude that art has appreciated in value by a moderate 3 97 per year in real u s dollar terms between 1957 and 2007 this is a performance similar to that of corporate bonds at much higher risk a repeat sales regression on a subset of the data demonstrates the robustness of our index next quantile regressions document larger average price appreciations and higher volatilities in more expensive price brackets we also find variation in historical returns across mediums and movements finally we show that measures of high income consumer confidence and art market sentiment predict art price trends this paper was accepted by wei xiong finance

currents and sub currents in innovation flows explaining innovativeness using new product announcements the creation of new knowledge is a haphazard process not every sector in an economy is equally involved the effect of industry structure on innovativeness has been a focus of attention for a long time by both academics and policymakers in a much quoted article using unique data new product announcements acs and audretsch acs z j audretsch d b 1988 innovation in large and small firms an empirical analysis american economic review 78 4 678 690 identified several characteristics of industry structure and their effects on innovativeness by analyzing a new and more consciously compiled database we re examine their original claims our results largely support their findings industry concentration and degree of unionization for instance hamper innovation skilled labor promotes it our findings diverge in one significant respect from theirs we suggest that the large firms do not contribute more to an industry s innovativeness than small firms at the industry level we find strong support for the schumpeter mark i perspective of creative destruction by small firms rather than creative accumulation by large firms in addition we show that less dedicated innovators prove more susceptible to firm external industry factors than more committed innovators an unfavorable competitive environment decreases the likelihood that less successful innovators will announce new products c 2008 elsevier b v all rights reserved

migration and imperfect labor markets theory and cross country evidence from denmark germany and the uk we investigate the labor market effects of immigration in denmark germany and the uk three countries which are characterized by considerable differences in labor market institutions and welfare states institutions such as collective bargaining minimum wages employment protection and unemployment benefits affect the way in which wages respond to labor supply shocks and hence the labor market effects of immigration we employ a wage setting approach which assumes that wages decline with the unemployment rate albeit imperfectly we find that the wage and employment effects of immigration depend on wage flexibility and the composition of the labor supply shock in germany immigration involves only moderate wage but large unemployment effects since immigrants are concentrated in labor market segments with low wage flexibility the reverse is true for the uk and denmark

liberalization outward orientation and in house r d activity of multinational and local firms a quantitative exploration for indian manufacturing abstract in an increasingly globalizing and knowledge based world economy the declining importance of r d activity in india is a matter of concern this paper analyzes the determinants of r d behaviour of indian enterprises over the 1990s in the context of the reforms of 1991 and their impact on the r d behaviour of mne affiliates and local enterprises the analysis suggests that although average levels of spending have fallen increased competition due to liberalization seems to have pushed local firms to rationalize their r d activity and make it more efficient also r d spending seems to rise more than proportionally with firm size after a certain threshold level has been reached the analysis brings out differences in the nature of r d activity of mne affiliates and local firms local firms direct their r d activity primarily towards the assimilation of imported technology and to providing a backup to their outward expansion via exports and fdi mne affiliates on the other hand focus on exploiting the advantages of india as an r d platform for their parents the paper is concluded with some policy implications of the findings

the price of wine abstract using historical price records for bordeaux premiers crus we examine the impact of aging on wine prices and the long term investment performance of fine wine in line with the predictions of an illustrative model young maturing wines from high quality vintages provide the highest financial returns past maturity famous ch teaus deliver growing non pecuniary benefits to their owners using an arithmetic repeat sales regression over 1900 2012 we estimate a real financial return to wine investment net of storage costs of 4 1 which exceeds bonds art and stamps returns to wine and equities are positively correlated finally we find evidence of in sample return predictability

innovation and size at the firm level empirical studies examining the relationship between firm size and innovative activity have produced what superficially might appear to be contradictory results while some studies have found a positive relationship between firm size and technological change still others have identified no relationship or even a negative one there are two main reasons for these seemingly inconsistent findings the first is that different measures have been used to quantify technical change these measures have typically involved either some measure of inputs into the innovative process such as r d expenditures or else the number of patented inventions while neither of these are direct measures of innovative output they clearly represent different aspects of the innovative process thus it is perhaps not too surprising that different results have tended to emerge when the r d input measures are used than for the patent measures the second reason is that virtually every study examining the relationship between firm size and technical change has had to use a truncated distribution of firm sizes where either no or only a few small firms were included for example scherer s 14 234 35 conclusion that the empirical results tilt on the side of supporting the schumpeterian hypothesis that size is conducive to vigorous conduct of r d was based on the responses of 443 large corporations participating in the federal trade commission s line of business survey similarly scherer 15 used the fortune annual survey of the 500 largest u s industrial corporations and found that the number of patented inventions increases less than proportionately along with firm size soete 16 found that r d expenditures tend to increase more than proportionately along with firm size using a sample from business week consisting of the most r d intensive firms bound et al 6 were able to include a considerably wider spectrum of firm sizes in their sample of 1 492 firms from the 1976 compustat data they found that r d increases more than proportionately along with firm size for the smaller firms in their sample but that a fairly linear relationship exists for the largest firms inferences about the relationship between firm size and technical change based on a severely we thank f m scherer and an anonymous referee for helpful suggestions as well as sigrid raasch and jianping

immigrant native wage gaps in time series complementarities or composition effects previous research has shown that immigrants wages decrease when the supply of immigrants increases this negative correlation has been interpreted as evidence of immigrant native complementarities in production the present study finds that it is instead due to changing immigrant composition

the provision of finance to innovation a survey conducted among italian technology based small firms financial constraints to the development of innovation are often considered one of the main impediments to high technology firms seeking to expand and grow in particular this is the case of small and medium size high tech firms in the u s and the u k a variety of sources of finance are available to the start ups of innovative firms in the other european countries and particularly in italy these means are still uncommon so that the development of technology is often prevented this paper based on an empirical analysis on a survey of 46 small high tech italian firms aims at exploring the problems experienced by small businesses in gaining access to debt and equity finance the results highlight that traditional financial sources are inadequate to finance innovative projects the questioned firms rely mainly on personal finance and secondly on short term bank debt they are truly involved in maintaining control over the firm activities and are willing to issue outside equity only if the new investors also provide non financial competencies among the 46 interviewed firms only 10 are willing to be listed in the future on small firms stock markets

some new evidence on the determinants of large and small firm innovation empirical analyses presented by acs and audretsch suggest differences in the market structure determinants of innovation between large and small firms in u s manufacturing the evidence they offer is ambiguous by using data for a different country the netherlands a different measure of innovation and a different aggregation level we offer new evidence allowing a revaluation of the findings for the u s material moreover the influence of the market structure determinants does not appear to differ between a period of sluggish growth 1983 and one of relatively high growth 1989

innovation r d cooperation and labor recruitment evidence from finland this article investigates the role played by one type of firm interaction namely rd rd and labor acquisition appears to be only of limited importance for innovation

the competitive characteristics of u s manufacturers in the machine tool industry this paper examines the competitive characteristics of u s manufacturers in the machine tool mt industry after several decades of decline this industry has recently shown signs of a modest but sustained recovery empirical evidence from a national survey of 104 mt producers suggests that the revival of this sector has been driven by a combination of factors including renewed export involvement improved customer support and better product design although most mt companies are small to medium sized enterprises smes the survey data show that very small smes are poorly represented in the recovery thrust of the industry as a whole our principal conclusion is that the mt industry has been following an export led path toward stabilization but that certain types of small producers are unlikely to thrive for very long the most serious problems facing small producers include shrinking local markets import competition shortages of skilled labor and cyclical demand

immigration wages and education a labour market equilibrium structural model recent literature analysing wage effects of immigration assumes labour supply is fixed across education experience cells this article departs from this assumption estimating a labour market equilibrium dynamic discrete choice model on u s micro data for 1967 2007 individuals adjust to immigration by changing education participation and or occupation adjustments are heterogeneous 4 2 26 2 of prime aged native males change their careers of them some switch to white collar careers and increase education by about three years others reduce labour market attachment and reduce education also by about three years these adjustments mitigate initial effects on wages and inequality natives that are more similar to immigrants are the most affected on impact but also have a larger margin to adjust and differentiate adjustments also produce a self selection bias in the estimation of wage effects at the lower tail of the distribution which the model corrects