the paradox of openness revisited collaborative innovation and patenting by uk innovators we revisit the paradox of openness in the literature which consists of two conflicting views on the link between patenting and open innovation the spillover prevention and the organizational openness views we use the data from the survey of innovation and patent use and the community innovation survey cis6 in the uk to assess the empirical support for the distinct predictions of these theories we argue that both patenting and external sourcing openness are jointly determined decisions made by firms their relationship is contingent upon whether the firms are technically superior to their rivals and lead in the market or not leading firms are more vulnerable to unintended knowledge spillovers during collaboration as compared to followers and consequently the increase in patenting due to openness is higher for leaders than for followers we develop a simple framework that allows us to formally derive the empirical implications of this hypothesis and test it by estimating whether the reduced form relationship between patenting and collaboration is stronger for leaders than for followers

sharing intellectual property rights an exploratory study of joint patenting amongst companies joint patenting by companies the sharing of property rights on inventions is a relatively unknown phenomenon that is generally seen by patent lawyers and firms alike as a second best option that if possible should be avoided however the number of joint patents has increased during the last couple of decades and despite its impopularity firms frequently engage in co ownership of patents this exploratory study is one of the first contributions that provides insight into relevant international legal complications of joint patenting sectoral trends and patterns and the motivation of companies to enter into these specific patenting agreements

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

competition wages and teacher sorting lessons learned from a voucher reform this paper studies how local school competition affects teacher wages at markets where wages are set via individual wage bargaining using regional variation in private school entry generated by a swedish reform which allowed private schools to enter freely and a comprehensive matched employer employee data covering all high school teachers in sweden over 16 years i analyze the effects of competition on wages as well as labor flows the results suggest that competition translates into higher wages also for teachers in public schools while the average increases are modest new teachers gain 2 percent and high ability teachers in math and science receive 4 percent higher wages in the most competitive areas compared to areas without any competition from private schools several robustness checks support a causal interpretation of the results which together highlight the potential gains from school competition through a more differentiated wage setting of teachers

using maimonides rule to estimate the effect of class size on scholastic achievement the twelfth century rabbinic scholar maimonides proposed a maximum class size of 40 this same maximum induces a nonlinear and nonmonotonic relationship between grade enrollment and class size in israeli public schools today maimonides rule of 40 is used here to construct instrumental variables estimates of effects of class size on test scores the resulting identiecation strategy can be viewed as an application of donald campbell s regression discontinuity design to the class size question the estimates show that reducing class size induces a signiecant and substantial increase in test scores for fourth and efth graders although not for third graders when asked about their views on class size in surveys parents and teachers generally report that they prefer smaller classes this may be because those involved with teaching believe that smaller classes promote student learning or simply because smaller classes offer a more pleasant environment for the pupils and teachers who are in them mueller chase and walden 1988 social scientists and school administrators also have a longstanding interest in the class size question class size is often thought to be easier to manipulate than other school inputs and it is a variable at the heart of policy debates on school quality and the allocation of school resources in many countries see e g robinson 1990 for the united states ofsted 1995 for the united kingdom and moshel ravid 1995 for israel this broad interest in the consequences of changing class size

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

complementarity and external linkages the strategies of the large firms in biotechnology in biotechnology large firms enter into different kinds of linkages with universities and small medium sized research intensive firms we test the hypothesis that the strategies of external linkage of the large firms with other parties are complementary to one another we show that if any two strategies are complementary i e undertaking more of one strategy raises the marginal value of the other then they are positively correlated using data for a sample large us european and japanese chemical and pharmaceutical producers we find that the strategies above are positively correlated even after controlling for firm specific characteristics

management of bureaucrats and public service delivery evidence from the nigerian civil service we study how the management practices bureaucrats operate under relate to the quantity and quality of public services delivered we do so exploiting data from the nigerian civil service for 4700 public sector projects we have hand coded independent engineering assessments of project completion rates and delivered quality we supplement this with a survey eliciting management practices for bureaucrats in the 63 civil service organizations responsible for these projects building on bloom and van reenen 2007 management practices matter a one standard deviation increase in bureaucrat s autonomy signi cantly increases project completion rates by 18 a one standard deviation increase in practices related to incentives monitoring of bureaucrats signi cantly lowers project completion rates by 14 we show the negative impacts of incentive provision monitoring arise because bureaucrats multi task and incentives are poorly targeted and because these management practices capture elements of subjective performance evaluation that leave scope for dysfunctional responses from bureaucrats to support a causal interpretation of our ndings we document the determinants of management practices and examine channels through which organizations might endogenously adjust management practices our results provide novel insights into how changes in how bureaucrats are managed can have potentially large impacts on public service delivery in a developing country context jel classi cation j33 j38 o20

valuing school quality using boundary discontinuities abstract existing research shows that house prices respond to local school quality as measured by average test scores however higher test scores could signal higher academic value added or higher ability more sought after intakes in our research we show that both school value added and student prior achievement linked to the background of children in schools affect households demand for education in order to identify these effects we improve the boundary discontinuity regression methodology by matching identical properties across admissions authority boundaries by allowing for boundary effects and spatial trends by re weighting our data towards transactions that are closest to district boundaries by eliminating boundaries that coincide with major geographical features and by submitting our estimates to a number of novel falsification tests our results survive this battery of tests and show that a one standard deviation change in either school average value added or prior achievement raises prices by around 3

innovation and productivity across four european countries nber working paper seriesinnovation and productivity across four european countriesrachel griffithelena huergojacques mairessebettina petersworking paper 12722http www nber org papers w12722national bureau of economic research1050 massachusetts avenuecambridge ma 02138december 2006we would like to thank laura abramovsky manuel arellano rupert harrison jordi jaumandreu elizabeth kremp pierre mohnen helen simpson the analysis contained in this paper was fundedby the european commission the esrc and esf under grant res 000 23 0901 and the advancedinstitute of management research aim all errors and omissions remain the responsibility of theauthors the views expressed herein are those of the author s and do not necessarily reflect the viewsof the national bureau of economic research 2006 by rachel griffith elena huergo jacques mairesse and bettina peters all rights reserved short sections of text not to exceed two paragraphs may be quoted without explicit permission providedthat full credit including notice is given to the source

productivity in public services abstract this paper discusses issues arising in the measurement of productivity in public services compared to measuring productivity in the private sector difficulties arise because the output of public services is often unpriced and because some public services are consumed collectively a key problem is measuring the full range of outputs and quality improvements delivered by public sector organizations that are valued by society without comprehensive measures of output productivity statistics may be misleading i outline methods used in the measurement of both private and public sector productivity and discuss the measurement of public sector productivity in practice finally i discuss studies that examine factors underlying productivity differences and productivity growth in public and private sector organizations public sector reforms and the use of pilot schemes in public sector organizations present opportunities for research to identify causal effects on productivity

managerial practices and student performance we study the effects of managerial practices in schools on student outcomes we measure managerial practices using the world management survey a methodology that enables us to construct robust measures of management quality comparable across countries we find substantial heterogeneity in managerial practices across six industrialized countries with more centralized systems italy and germany lagging behind the more autonomous systems canada sweden united kingdom and united states for italy we are able to match organizational practices at the school level with student outcomes in a math standardized test we find that managerial practices are positively related to student outcomes the estimates imply that if italy had the same managerial practices as the united kingdom the best performer it would close the gap in the math oecd pisa test with respect to the oecd average we argue that our results are robust to selection issues and show that they are confirmed by a set of iv estimates and by a large number of robustness checks overall our results suggest that policies directed at improving student cognitive achievements should take into account principals selection and training in terms of managerial capabilities

the changing technology of technological change general and abstract knowledge and the division of innovative labour abstract in the past most innovations have resulted from empiricist procedures the outcome of each trial yielding knowledge that could not be readily extended to other contexts while trial and error may remain the primary engine of innovation developments in many scientific disciplines along with progress in computational capabilities and instrumentation are encouraging a new approach to industrial research instead of relying purely on trial and error the attempt is also to understand the principles governing the behaviour of objects and structures the result is that relevant information whatever its source can now be cast in frameworks and categories that are more universal the greater universality makes it possible for the innovation process to be organised in new ways firms can specialise and focus upon producing new knowledge and the locus of innovation may be spread across both users and producers more generally the use of general and abstract knowledge in innovation opens up the possibility for a division of labour in inventive activity the division of innovative labour the implications for public policy especially that on intellectual property rights are discussed

the headmaster ritual the importance of management for school outcomes a the role of school principals largely resembles that of corporate managers and the leadership they provide are often viewed as a crucial component for educational success we estimate the impact of individual principals on various schooling outcomes by constructing a principal school panel data set that allows us to track individual principals as they move between schools we find that individual principals have a substantive impact on school policies working conditions and student outcomes particularly students who attend a school with a one standard deviation better principal receive on average 0 12 standard deviations higher test scores despite having very rich background information on principals it is difficult to determine which principal characteristics that form the basis for successful school management we also find a somewhat mixed picture on what management style characterizes a successful principal we further show that the scope for principal discretion for better or for worse is larger in small schools in voucher schools and in areas with more school competition

the effect of charter schools on achievement and behavior of public school students abstract charter schools have seen dramatic growth over the last decade however we know little about how they affect traditional public schools i look at how charters affect student outcomes in public schools using data from a large urban school district in the southwest unlike prior work that relies on school fixed effects i address the endogenous location of charter schools using an instrumental variables strategy that relies on plausibly exogenous variation in local building supply results show that charters induce modest but statistically significant drops in math and language test scores particularly for elementary students however results for middle and high school students show improvements in discipline

testing crime and punishment abstract the recent passage of the no child left behind act of 2001 solidified a national trend toward increased student testing for the purpose of evaluating public schools this new environment for schools provides strong incentives for schools to alter the ways in which they deliver educational services this paper investigates whether schools may employ discipline for misbehavior as a tool to bolster aggregate test performance to do so this paper utilizes an extraordinary data set constructed from the school district administrative records of a subset of the school districts in florida during the 4 years surrounding the introduction of a high stakes testing regime it compares the suspensions of students involved in each of the 41 803 incidents in which two students were suspended and where prior test scores for both students are observed while schools always tend to assign harsher punishments to low performing students than to high performing students throughout the year this gap grows substantially during the testing window moreover this testing window related gap is only observed for students in testing grades in summary schools apparently act on the incentive to re shape the testing pool through selective discipline in response to accountability pressures

an empirical analysis of the determination of house prices in the united kingdom between the first quarters of 1970 and 1980 the average price of new houses in the united kingdom increased five fold over the same period building societies grew to become major financial institutions attracting almost 50 per cent of the personal sector s holdings of liquid assets and responsible for more than 85 per cent of house purchase finance this paper sets out to examine the extent to which building societies have been responsible for the rapid acceleration of house prices and indicates the other main determinants of this phenomenon the analysis is extended to a discussion of recent econometric research into house price determination and arrives at a more general specification employing an error correction estimation methodology

dividend yield and expected returns abstract previous research examining the relation between dividend yield and equity returns documents a u shaped pattern arising from the positive capm adjusted average excess return of zero dividend firms in contrast this paper reports that zero dividend firms earn negative average excess returns relative to firms of similar size despite the apparent conformity of these results to the predictions of after tax asset pricing models the negative size adjusted excess returns cannot be drive solely by tax effects these excess returns which are concentrated in the initial zero dividend years and approach 1 per month are attributed to possible dividend expectation effects rather than taxes

new approaches to surveying organizations the last three decades have witnessed an explosion of theoretical work on the organization of firms robert gibbons and john roberts forthcoming in parallel there has been a massive increase in access to microdata which has revealed huge dispersions in productivity for example within narrow industries like cement oak flooring and block ice the total factor productivity of plants at the ninetieth percentile is about twice that of those at the tenth percentile lucia foster john haltiwanger and chad syversson 2008 unfortunately analyzing to what extent this heterogeneity in productivity is due to management and organizational practices unmeasured inputs or other technologies has been held back by a lack of data national statistical agencies do not usually collect data on the internal organization of companies nor do firms report this in their accounts recently however social scientists have been starting to fill this gap by working closely with small numbers of individual firms e g the insider econometrics approach described in kathryn shaw 2009 or covering wide cross sections of firms e g nicholas bloom raffaella sadun and john van reenen 2009 in this paper we describe some of the tools of this research particularly bloom and van reenen 2007 henceforth bvr for measuring management and organizational practices

capital gains tax and equity values empirical test of stock price reaction to the introduction and reduction of capital gains tax exemption abstract this paper evaluates the differential effect on stock prices of the introduction in canada of 500 000 capital gains tax exemption and the reduction of this limit to 100 000 two years later using the seemingly unrelated regression methodology and controlling for thin trading and heteroscedasticity the empirical evidence indicates that the changes in capital gains tax laws had a differential effect on low dividend yield and high dividend yield stocks on both occasions while the evidence indicates that the stock market anticipated the 1985 capital gains tax law changes the significant market reaction to the 1987 reduction of the exemption occurred a day before and after the reading of the tax reform proposals in parliament thus it can be inferred from the results that despite the presence of tax sheltering opportunities in canada changes in capital gains tax laws affect equity values

subjective performance measures in optimal incentive contracts objective measures of performance are seldom perfect in response incentive contracts often include important subjective components that mitigate incentive distortions caused by imperfect objective measures this paper explores the combined use of subjective and objective performance measures in respectively implicit and explicit incentive contracts naturally objective and subjective measures often are substitutes sometimes strikingly so we show that if objective measures are sufficiently close to perfect then no implicit contracts are feasible because the firm s fallback position after reneging on an implicit contract is too attractive we also show however that objective and subjective measures can reinforce each other if objective measures become more accurate then in some circumstances the optimal contract puts more weight on subjective measures because the improved objective measures increase the value of the ongoing relationship and so reduce the firm s incentive to renege we also analyze the use of subjective weights on objective performance measures and provide case study evidence consistent with our analyses

networks of innovators a synthesis of research issues abstract this paper will first summarise some key findings of empirical research in the 1960s on the role of external sources of scientific technical and market information in successful innovation by business firms this work demonstrated unambiguously the vital importance of external information networks and of collaboration with users during the development of new products and processes moreover the dilemmas of cooperative research in competitive industries were recognised and studied long ago 35 62 76 what then is new about the present wave of interest in networks of innovators are there new forms of organisation or new technologies or new policies which justify renewed research efforts since they go beyond those developments already analysed in earlier empirical and theoretical work section 2 reviews the evidence of new developments in the 1980s in industrial networks regional networks and government sponsored innovative activities it shows that there has indeed been a major upsurge of formal and semi formal flexible networks in the 1980s including some new types of network it also shows that some older forms of research cooperation have been modified and transformed the papers at montreal largely concentrated on the role of regional supplier networks which are a good example of such new wine in old bottles this paper attempts to locate the regional network discussion within a wider context of new developments in networking section 3 discusses the causes of these new developments and whether they are likely to remain a characteristic of national and international innovation systems for a long time to come or prove to be a temporary upsurge to be overtaken later by a wave of take overs and vertical integration finally section 4 sums up some of the other key issues which require further research and debate and the implications for social science theory

does school tracking affect equality of opportunity new international evidence this paper investigates whether the interaction between family background and secondary school tracking affects human capital accumulation a widely shared view is that more tracking reinforces the role of parental privilege and thereby reduces equality of opportunities this may occur for several reasons including peer effects more talented students are gathered together teacher sorting better teachers prefer teaching better students differences in curricula academic oriented schools like the german gymnasium the french lycee the british grammar school or the italian liceo teach abilities that increase the probability of entering college and or differences in resource endowment compared to the current literature which focuses on early outcomes such as test scores at 13 and 15 years old we look at later outcomes including literacy dropout rates college enrolment employability and earnings while we do confirm the common view that school tracking reinforces the impact of family background when looking at educational attainment and labour market outcomes we do not confirm the same results when studying its impact on literacy and on the job training overall school tracking has an ambiguous effect in our sample of countries on the one hand and consistently with the previous literature tracking has a detrimental impact on educational attainment because it prevents some individuals from further progressing to the tertiary level of education the diversion effect on the other hand the curricula offered in vocational schools seem more effective in promoting further training and adult competences the specialization effect thereby reducing the impact of parental background on these two outcomes thus reducing the extent of student tracking either by raising the age of first selection or by reducing the number of tracks available may be appropriate for increasing intergenerational mobility in educational attainment but may increase social exclusion for people from disadvantaged backgrounds giorgio brunello and daniele checchi

r d cooperation and failures in innovation projects empirical evidence from french cis data the second french community innovation survey cis indicates that 14 of rd collaborating firms had to abandon or delay their innovation projects due to difficulties in their partnerships an outcome which we term cooperation failures controlling for sample selection on the cooperation decision our estimates show that firms collaborating with competitors and public research organizations pros especially when they are foreign are more likely to delay or stop an innovation project because of difficulties encountered in their rd partnerships more surprisingly firms collaborating with their suppliers also face a higher risk of cooperation failures at least for pros firms can reduce the risk of cooperation failures through previous experiences in partnerships larger firms and group subsidiaries are less likely to face cooperation failures and so do firms in industries with a strong appropriability regime

new evidence that taxes affect the valuation of dividends this paper uses british data to examine the effects of dividend taxes on investors relative valuation of dividends and capital gains british data offer great potential to illuminate the dividends and taxes question since there have been two radical changes and several minor reforms in british dividend tax policy during the last 30 years studying the relationship between dividends and stock price movements during different tax regimes offers an ideal controlled experiment for assessing the effects of taxes on investors valuation of dividends using daily data on a small sample of firms and monthly data on a much broader sample we find clear evidence that taxes affect the equilibrium relationship between dividend yields and market returns these findings suggest that taxes are important determinants of security market equilibrium and deepen the puzzle of why firms pay dividends financial economists have long been puzzled by corporate dividend behavior many individual investors should value a dollar of corporate dividends less than a dollar of corporate retentions because the former gives rise to greater tax liabilities corporations however face equal costs of paying out dividends and retaining earnings miller and modigliani 31 demonstrated that in the absence of taxes dividend policy should have no effect on share valuation if dividends are tax penalized however a value maximizing firm should pay no dividends widespread dividend payments to taxable investors are therefore surprising in 1981 dividend tax revenues in the united states were estimated to exceed 20 billion dollars indeed some have interpreted the large volume of dividends paid as evidence against the rational behavior postulates typically used by economists the dividend question has stimulated a large theoretical and empirical literature concerned with the qluestion of investors valuation of dividends in particular the question of how taxes affect the market valuation of dividends has generated considerable controversy numerous studies including auerbach 2 litzenberger and ramaswamy 24 26 morgan 34 and rosenberg and marathe

accountability incentives and behavior the impact of high stakes testing in the chicago public schools the recent federal education bill no child left behind requires states to test students in grades 3 to 8 each year and to judge school performance on the basis of these test scores while intended to maximize student learning there is little empirical evidence about the effectiveness of such policies this study examines the impact of an accountability policy implemented in the chicago public schools in 1996 1997 using a panel of student level administrative data i find that math and reading achievement increased sharply following the introduction of the accountability policy in comparison to both prior achievement trends in the district and to changes experienced by other large urban districts in the mid west however for younger students the policy did not increase performance on a state administered low stakes exam an item level analysis suggests that the observed achievement gains were driven by increases in test specific skills and student effort i also find that teachers responded strategically to the incentives along a variety of dimensions by increasing special education placements preemptively retaining students and substituting away from low stakes subjects like science and social studies

sectoral patterns of technical change towards a taxonomy and a theory abstract the purpose of the paper is to describe and explain sectoral patterns of technical change as revealed by data on about 2000 significant innovations in britain since 1945 most technological knowledge turns out not to be information that is generally applicable and easily reproducible but specific to firms and applications cumulative in development and varied amongst sectors in source and direction innovating firms principally in electronics and chemicals are relatively big and they develop innovations over a wide range of specific product groups within their principal sector but relatively few outside firms principally in mechanical and instrument engineering are relatively small and specialised and they exist in symbiosis with large firms in scale intensive sectors like metal manufacture and vehicles who make a significant contribution to their own process technology in textile firms on the other hand most process innovations come from suppliers these characteristics and variations can be classified in a three part taxonomy based on firms 1 supplier dominated 2 production intensive 3 science based they can be explained by sources of technology requirements of users and possibilities for appropriation this explanation has implications for our understanding of the sources and directions of technical change firms diversification behaviour the dynamic relationship between technology and industrial structure and the formation of technological skills and advantages at the level of the firm the region and the country

charter school entry and school choice the case of washington d c this paper develops and estimates an equilibrium model of charter school entry and school choice in the model households choose among public private and charter schools and a regulator authorizes charter entry and mandates charter exit the model is estimated for washington d c according to the estimates charters generate net social gains by providing additional school options and they benefit non white low income and middle school students the most further policies that raise the supply of prospective charter entrants in combination with high authorization standards enhance social welfare

good principals or good peers parental valuation of school characteristics tiebout equilibrium and the incentive effects of competition among jurisdictions good principals or good peers parental valuation of school characteristics tiebout equilibrium and the incentive effects of competition among jurisdictions by j esse m r othstein school choice policies may by aligning admin istrators incentives with parental demand yield improved efficiency in educational production milton friedman 1962 john e chubb and terry m moe 1990 but eric a hanushek 1981 cautions if the efficiency of our school systems is due to poor incentives for teachers and admin istrators coupled with poor decision making by consumers it would be unwise to expect much from programs that seek to strengthen market forces in the selection of schools p 35 empha sis added poor decision making is not required parents may rationally choose schools with pleasant surroundings athletic facilities cultural advantages ibid p 34 over those that most efficiently pursue academic performance they may prefer poorly run schools with good peer groups over those that are more effective but en roll worse students j douglas willms and frank h echols 1992 1993 or they may simply be unable to identify effective schools thomas j kane and douglas o staiger 2002 any factor that leads parents to choose any but the most effective available schools will tend to dilute the incentives for efficient management that choice might otherwise create this study examines the distribution of stu dent outcomes across schools within metropol itan housing markets for evidence on parental demand economists have long noted that par ents choices among residential locations are potentially informative about how more com plete choice systems may operate charles m tiebout 1956 melvin v borland and roy m howsen 1992 caroline m hoxby 2000 rothstein 2005 1 i ask whether school effec tiveness plays a sufficiently important role in these decisions to create meaningful incentives for more productive school management i adopt a specific understanding of effective ness appropriate to the question at hand a substantial portion of between school differ ences in student performance can be attributed to differences in student body composition this portion includes the effects of individual stu dent characteristics on their own test scores any direct peer group effects and any indirect ef fects of a school s composition on the quality of its instruction if wealthy schools attract better teachers joseph r antos and sherwin rosen 1975 or more parental involvement this is for my purposes a peer effect it depends on the quality of the school s administration only via school composition a school administrator cannot attract demand by offering a school with wealthy students as these can be offered only if wealthy families demand the school in the first place only the remaining portion of a school s contribution to test scores is effectiveness 2 department of economics and woodrow wilson school princeton university wallace hall 3 rd floor princeton nj 08544 e mail jrothst princeton edu i thank alan auerbach tom davidoff caroline hoxby jus tin mccrary rob mcmillan john quigley cecilia rouse emmanuel saez till von wachter four anonymous refer ees editor robert moffitt seminar participants at several institutions and especially david card for helpful sugges tions i am grateful to the college board for essential data and to a national science foundation graduate research fellowship and the fisher center for real estate and urban economics at uc berkeley for funding see cecilia elena rouse 1998 julie b cullen et al 2005 william g howell et al 2002 and alan b krueger and pei zhu 2004 for analyses of several existing nonresidential choice programs though none focuses on the particular issue studied here this definition avoids the need to find observable de terminants of effectiveness which have proved elusive hanushek 1986 my definition however ignores a school s contribution to nontest outcomes e g sports or music if such outcomes motivate parental choices i will conclude that parents do not demand effective schools of

does competition among public schools benefit students and taxpayers tiebout choice among districts is the most powerful market force in american public education naive estimates of its effects are biased by endogenous district formation i derive instruments from the natural boundaries in a metropolitan area my results suggest that metropolitan areas with greater tiebout choice have more productive public schools and less private schooling little of the effect of tiebout choice works through its effect on household sorting this finding may be explained by another finding students are equally segregated by school in metropolitan areas with greater and lesser degrees of tiebout choice among districts

the performance and competitive effects of school autonomy this paper studies a recent british reform that allowed public high schools to opt out of local authority control and become autonomous schools funded directly by the central government schools seeking autonomy had only to propose and win a majority vote among current parents almost one in three high schools voted on autonomy between 1988 and 1997 and using a version of the regression discontinuity design i find large achievement gains at schools in which the vote barely won compared to schools in which it barely lost despite other reforms that ensured that the british education system was by international standards highly competitive a comparison of schools in the geographic neighborhoods of narrow vote winners and narrow vote losers suggests that these gains did not spill over

the acquisition and commercialization of invention in american manufacturing incidence and impact abstract recent accounts suggest the development and commercialization of invention has become more open greater division of labor between inventors and innovators can enhance social welfare through gains from trade and economies of specialization moreover this extensive reliance upon outside sources for invention also suggests that understanding the factors that condition the extramural supply of inventions to innovators is crucial to understanding the determinants of the rate and direction of innovative activity this paper reports on a recent survey of over 5000 american manufacturing sector firms on the extent to which innovators rely upon external sources of invention our results indicate that between 2007 and 2009 16 of manufacturing firms had innovated meaning had introduced a product that was new to the industry of these 49 report that their most important new product had originated from an outside source notably customers suppliers and technology specialists i e universities independent inventors and r d contractors we also compare the contribution of each source to innovation in the us economy although customers are the most common outside source inventions acquired from technology specialists tend to be the more economically significant in term of their gross commercial value as a group external sources of invention make a significant contribution to the overall rate of innovation in the economy innovation policies both public and private should pay careful attention to the external supply of invention and the efficiency of the mechanisms affecting the relationships between inventors and innovators

the public choice of educational choice the very small literature explaining i how citizens have voted in two california voucher referenda ii how legislators have voted on voucher bills in the state of florida and the us congress and iii the variation across states in charter school provisions is summarized new empirical evidence documenting the cross state variation in the success of voucher referenda and voucher bills is examined voucher bill characteristics and state characteristics play important roles voucher bills have been passed only in the more conservative republican states and almost all of the successful voucher programs have been targeted at large struggling school districts

test for tax effects in the pricing of financial assets this paper tests four competing hypotheses regarding taxation and the pricing of financial assets no differential tax effects in the pricing of stocks or bonds the equilibrium condition described by miller 1977 the two parameter after tax pricing equations of brennan 1970 and litzenberger and ramaswamy 1979 and dividend related clientele effects described by elton and gruber 1970 and litzenberger and ramaswamy 1980 these hypotheses make substantially different predictions about the impact of taxes on financial decisions however when stated in terms of returns the hypotheses imply parameter restrictions with the same functional form the commonality of the parameter restrictions allows simultaneous testing of all four models by testing the form of the parameter restrictions this approach differs from that of previous researchers who have by and large implicitly assumed that the parameter restrictions implied by the respective models hold see elton and gruber 1970 black and scholes 1973 1974 litzenberger and ramaswamy 1979 1980 miller and scholes 1982 conditional on this assumption parameter estimates have been made and this paper tests four models describing the impact of taxes on financial asset returns no tax effects miller s equilibrium the twoparameter pricing models of brennan and litzenberger and ramaswamy and taxinduced dividend clientele effects these tests are carried out by casting the hypotheses in terms of systems of equations and identifying the parameter restrictions implied by each of the hypotheses the systems approach is particularly useful for testing for clientele effects because we are able to identify withinand between equation restrictions without specifying the marginal tax rate of the clientele which holds a particular security my results suggest that none of tax motivated hypotheses is descriptive of the data this paper is a distillation of several research projects i have undertaken in the last two years special thanks are in order to g constantinides e fama j ingersoll a madansky and m scholes i owe a particularly important debt to merton miller for help and encouragement finally i would like to thank steve buser and e han kim

dividends and capital asset prices tax based dividend models of capital asset pricing assume that dividends are known at the time prices are set dividends which are announced and paid in the same month and dividends which were expected but cancelled in the month constitute surprises which interfere with many empirical tests of the effects of expected dividend yield on returns this paper avoids these problems by relating returns to forecasts of dividend yield obtained from past data three distinct views of the importance of dividends to investors have received support at one time or another according to the two most important views dividends have a neutral and a negative effect on security prices respectively miller and modigliani 1 and miller and scholes 12 13 favor complete substitutability of dividends and capital gain brennan 6 and litzenberger and ramaswamy 9 have developed models which incorporate differential taxation of income and capital gain in these models the tax disadvantage of income changes the investor s portfolio problem from one of optimization of mean and variance of portfolio before tax return to optimization in after tax terms stocks with relatively large dividend yields should provide high expected returns and so sell for low prices to compensate the investor for the tax much of the empirical evidence seems to favor the view that tax disadvantages of dividend income do not escape investors attention and that returns are higher when they include dividend income to compensate the investor for the tax liability however interpretation of the available evidence is difficult and it is significant that most of these researchers remain unconvinced that their own findings can be satisfactorily explained by tax effects ball brown finn and officer 1 interpret their estimates as being far too strong to be explained in terms of differential taxation blume 3 reaches a similar conclusion but litzenberger and ramaswamy attribute their results to the tax disadvantage of

herding cats management and university performance using a tried and tested measure of management practices that has been shown to predict firm performance we survey nearly 250 departments across 100 uk universities we find large differences in management scores across universities and that departments in older research intensive universities score higher than departments in newer more teaching oriented universities we also find that management matters in universities the scores particularly with respect to provision of incentives for staff recruitment retention and promotion are correlated with both teaching and research performance conditional on resources and past performance moreover this relationship holds for all universities not just research intensive ones

decentralization and access to social services in colombia decentralization is meant to improve access to public services but relatively few studies examine this question empirically we explore the effects of decentralization on access to health and education in colombia using an original database covering over 95 of colombian municipalities we show that decentralization improved enrollment rates in public schools and access of the poor to public health services in both sectors improving access was driven by the financial contributions of local governments small increases in own shares of spending led to surprisingly large increases in the access of the poor in both sectors our theoretical model implies that where local information dominates productive efficiency elected local governments will provide services better tailored to local needs decentralizing such services should increase their use by the public together theory and empirics imply that decentralization made the colombian state more accountable it provided local officials with the information and incentives they need to allocate resources in a manner responsive to voters needs and improve the impact of public expenditures

corrupting learning evidence from missing federal education funds in brazil abstract this paper examines if money matters in education by looking at whether missing resources due to corruption affect student outcomes we use data from the auditing of brazil s local governments to construct objective measures of corruption involving educational block grants transferred from the central government to municipalities using variation in the incidence of corruption across municipalities and controlling for student school and municipal characteristics we find a significant negative association between corruption and the school performance of primary school students students residing in municipalities where corruption in education was detected score 0 35 standard deviations less on standardized tests and have significantly higher dropout and failure rates using a rich dataset of school infrastructure and teacher and principal questionnaires we also find that school inputs such as computer labs teaching supplies and teacher training are reduced in the presence of corruption overall our findings suggest that in environments where basic schooling resources are lacking money does matter for student achievement

choice competition and pupil achievement choice and competition in education have recently found growing support from both policy makers and academics yet evidence on the actual benefits of market orientated reforms is at best mixed moreover although the economic rationale for choice and competition is clear in existing work there is rarely an attempt to distinguish between the two concepts in this paper we study whether pupils in primary schools in england with a wider range of school choices achieve better academic outcomes than those whose choice is more limited and whether primary schools facing more competition perform better than those in a more monopolistic situation in simple least squares regression models we find little evidence of a link between choice and achievement but uncover a small positive association between competition and school performance yet this could be related to endogenous school location or pupil sorting in fact an instrumental variable strategy based on discontinuities generated by admissions district boundaries suggests that the performance gains from greater school competition are limited only when we restrict our attention to voluntary aided schools which have more freedom in managing their governance and admission practices do we find some evidence of a positive causal link between competition and pupil achievement jel i20 h70 r5

the canadian tax reform and its effect on stock prices a note the effect of personal taxation on stock prices remains controversial while some researchers have found evidence of a tax effect in the stock market others have found evidence to the contrary this paper provides additional empirical evidence on the effect of the differential taxation of dividends and capital gains on stock prices by analyzing stock price changes around the 1971 canadian tax reform and its subsequent amendments in 1977 the results show that changes in the taxation of cash dividends and capital gains affected high yield and lowyield stocks listed on the toronto stock exchange tse differently section i of the paper describes the tax changes the method used to analyze the tax effect is described in section ii section iii reports the results and conclusions are presented in section iv

technology policy for a world of skew distributed outcomes abstract this paper draws implications for technology policy from evidence on the size distribution of returns from eight sets of data on inventions and innovations attributable to private sector firms and universities the distributions are all highly skew the top 10 of sample members captured from 48 to 93 percent of total sample returns it follows that programs seeking to advance technology should not be judged negatively if they lead to numerous economic failures rather emphasis should be placed on the relatively few big successes to achieve noteworthy success with appreciable confidence a sizeable array of projects must often be supported the outcome distributions are sufficiently skewed that even with large numbers of projects it is not possible to diversify away substantial residual variability through portfolio strategies

incentives work getting teachers to come to school we use a randomized experiment and a structural model to test whether monitoring and financial incentives can reduce teacher absence and increase learning in india in treatment schools teachers attendance was monitored daily using cameras and their salaries were made a nonlinear function of attendance teacher absenteeism in the treatment group fell by 21 percentage points relative to the control group and the children s test scores increased by 0 17 standard deviations we estimate a structural dynamic labor supply model and find that teachers respond strongly to financial incentives our model is used to compute cost minimizing compensation policies jel i21 j31 j45 o15

on the sources and significance of interindustry differences in technological opportunities abstract the set of technological opportunities in a given industry is one of the fundamental determinants of technical advance in that line of business we examine the concept of technological opportunity and discuss three categories of sources of those opportunities advances in scientific understanding and technique technological advances originating in other industries and in other private and governmental institutions and feedbacks from an industry s own technological advances data from the yale survey on industrial research and development are used to measure the strength of various sources of technological opportunity and to discern interindustry differences in the importance of these sources we find that interindustry differences in the strength and sources of technological opportunities contribute importantly to explanations of cross industry variation in r d intensity and technological advance

does management matter in schools we collect data on management practices in over 1 800 high schools in eight countries we show that higher management quality is strongly associated with better educational outcomes the uk sweden canada and the us obtain the highest management scores followed by germany with a gap before italy brazil and india we also show that autonomous government schools government funded but with substantial independence like uk academies and us charters have higher management scores than regular government or private schools almost half of the difference between the management scores of autonomous and regular government schools is accounted for principal leadership and governance there are major disparities in the quality of education within and between countries oecd 2012 school managerial practices may be an important reason for such differences unfortunately understanding the role of management in schools within and across countries has been held back by a lack of robust and comparable instruments to systematically measure management practices and thus a lack of good data the key purpose of this article is to develop an international management index for schools and present descriptive evidence on management quality and education outcomes across schools of different types within and across countries we used double blind telephone interviews with school principals to collect information on management practices for over 1 800 schools across eight countries to construct our management index we average across 20 basic management practice measures in four areas of management operations monitoring target setting and people each question is evaluated against a scoring grid that ranges from one worst practice to five best practice our management index for each school represents the average of these scores we also constructed measures of school level pupil outcomes for these schools when data were available from examination results across regions and countries creating a matched management pupil outcome international data set at the school level these data allow us to document some stylised facts first we show that the adoption of basic managerial practices varies significantly across and within countries the uk sweden canada and the us obtain the highest average scores followed by germany italy and brazil while india has the lowest scores about half of the variance in school management is at the country level this share is larger in education than we have

the impact of school choice on student outcomes an analysis of the chicago public schools we explore the impact of school choice on student outcomes in the context of open enrollment within the chicago public schools cps roughly half of the students opt out of their assigned high school to attend a different cps school and these students are much more likely than those who remain in their assigned schools to graduate to determine the source of this apparent benefit we compare outcomes across i similar students with differential access to schooling options and ii travelers and non travelers within the same school the results suggest that other than for students who select career academies the observed cross sectional benefits are likely spurious

private school vouchers and student achievement an evaluation of the milwaukee parental choice program in 1990 wisconsin began providing vouchers to a small number of low income students to attend nonsectarian private schools controlling for individual fixed effects i compare the test scores of students selected to attend a participating private school with those of unsuccessful applicants and other students from the milwaukee public schools i find that students in the milwaukee parental choice program had faster math score gains than but similar reading score gains to the comparison groups the results appear robust to data imputations and sample attrition although these deficiencies of the data should be kept in mind when interpreting the results

the effect of personal taxes on common stock prices the case of a belgian tax reform abstract this paper analyses how a belgian tax reform affected the relative pricing of securities with differential tax treatment of dividends the results show that stock prices reflect their relative personal tax advantage and the price differentials are significantly related to dividend yield

competition innovation and the use of innovations i examine the effect of competition on the production and use of innovations using evidence from a natural experiment of policy reform the introduction of cartel legislation in the uk in the late 1950s i compare manufacturing industries which had been collusive and were therefore affected by the policy with those that had been competitive and were not affected the intensification of competition following the abolition of cartels caused a short run decrease in innovations produced but had no significant effect in the long run in contrast innovations used increased both in the short run and in the long run

the impact of competition on management quality evidence from public hospitals in this paper we examine the causal impact of competition on management quality we analyze the hospital sector where geographic proximity is a key determinant of competition and english public hospitals where political competition can be used to construct instrumental variables for market structure since almost all major english hospitals are government run closing hospitals in areas where the governing party has a small majority is rare due to fear of electoral punishment we find that management quality measured using a new survey tool is strongly correlated with financial and clinical outcomes such as survival rates from emergency heart attack admissions ami more importantly we find that higher competition as indicated by a greater number of neighboring hospitals is positively correlated with increased management quality and this relationship strengthens when we instrument the number of local hospitals with local political competition adding another rival hospital increases the index of management quality by one third of a standard deviation and leads to a 10 7 reduction in heart attack mortality rates

injecting charter school best practices into traditional public schools evidence from field experiments this study examines the impact on student achievement of implementing a bundle of best practices from high performing charter schools into low performing traditional public schools in houston texas using a school level randomized field experiment and quasi experimental comparisons the five practices in the bundle are increased instructional time more effective teachers and administrators high dosage tutoring data driven instruction and a culture of high expectations the findings show that injecting best practices from charter schools into traditional houston public schools significantly increases student math achievement in treated elementary and secondary schools by 0 15 to 0 18 standard deviations a year and has little effect on reading achievement similar bundles of practices are found to significantly raise math achievement in analyses for public schools in a field experiment in denver and program in chicago jel codes i21 i24 i28 j24

school vouchers a survey of the economics literature we review the theoretical computational and empirical research on school vouchers with a focus on the latter our assessment is that the evidence to date is not sufficient to warrant recommending that vouchers be adopted on a widespread basis however multiple positive findings support continued exploration specifically the empirical research on small scale programs does not suggest that awarding students a voucher is a systematically reliable way to improve educational outcomes and some detrimental effects have been found nevertheless in some settings or for some subgroups or outcomes vouchers can have a substantial positive effect on those who use them studies of large scale voucher programs find student sorting as a result of their implementation although of varying magnitude evidence on both small scale and large scale programs suggests that competition induced by vouchers leads public schools to improve moreover research is making progress on understanding how vouchers may be designed to limit adverse effects from sorting while preserving positive effects related to competition finally our sense is that work originating in a single case e g a given country or in a single research approach e g experimental designs will not provide a full understanding of voucher effects fairly wide ranging empirical and theoretical work will be necessary to make progress

mobility and the return to education testing a roy model with multiple markets self selected migration presents one potential explanation for why observed returns to a college education in local labor markets vary widely even though u s workers are highly mobile to assess the impact of self selection on estimated returns this paper first develops a roy model of mobility and earnings where workers choose in which of the 50 states plus the district of columbia to live and work available estimation methods are either infeasible for a selection model with so many alternatives or place potentially severe restrictions on earnings and the selection process this paper develops an alternative econometric methodology that combines lee s 1983 parametric maximum order statistic approach to reduce the dimensionality of the error terms with more recent work on semiparametric estimation of selection models e g ahn and powell 1993 the resulting semiparametric correction is easy to implement and can be adapted to a variety of other polychotomous choice problems the empirical work which uses 1990 u s census data confirms the role of comparative advantage in mobility decisions the results suggest that self selection of higher educated individuals to states with higher returns to education generally leads to upward biases in ols estimates of the returns to education in state specific labor markets while the estimated returns to a college education are significantly biased correcting for the bias does not narrow the range of returns across states consistent with the finding that the corrected return to a college education differs across the u s the relative state to state migration flows of college versus high school educated individuals respond strongly to differences in the return to education and amenities across states

outsourcing education experimental evidence from liberia in 2016 the liberian government delegated management of 93 randomly selected public schools to private providers providers received us 50 per pupil on top of us 50 per pupil annual expenditure in control schools after one academic year students in outsourced schools scored 0 18 higher in english and mathematics we do not find heterogeneity in learning gains or enrollment by student characteristics but there is significant heterogeneity across providers while outsourcing appears to be a cost effective way to use new resources to improve test scores some providers engaged in unforeseen and potentially harmful behavior complicating any assessment of welfare gains

the magnitude of innovation by demand in a sectoral system the role of industrial users in semiconductors abstract how relevant is innovation by demand compared to innovation by other actors in a sector in quantitative terms this is a yet unanswered question the current study fills this major gap in the literature on industry studies by taking a sectoral system perspective this study is able to highlight the magnitude of innovation by intermediate user firms in a high technology sector semiconductors using a combination of different datasets patents co patents r d alliances and new ventures in semiconductors this study proposes a novel quantitative approach to assessing the magnitude of innovative activity by user firms the study reaches several findings first the magnitude of innovation by user firms as measured by patents is high in both absolute and relative terms compared to semiconductor firms and other actors in the sector second the distribution of patents among different demand segments is highly uneven third innovative user firms are highly heterogeneous in terms of size diversification and vertical integration fourth collaboration in r d and co patenting activity in semiconductors take place not just between user firms and semiconductor firms but also among user firms themselves fifth innovative user firms are quite active in entrepreneurial activity in semiconductors and their new ventures on average survive longer than spin offs or other start ups

fiscal decentralization and natural hazard risks at least to some extent due to pressure from international donors many countries have become more fiscally decentralized the underlying premise being that greater decentralization might improve the provision of local public goods and services we test this proposition by determining whether relatively more decentralized countries fare better when natural disasters strike in terms of its effects on the population overall we find evidence supporting our maintained hypothesis though the effect appears much more robust in developing countries

transactions cost economics and the multinational enterprise an assessment abstract this paper applies transactions cost principles to the multinational enterprise in order to ascertain its distinctive properties as a mode of economic organization the analysis helps identify just when and where contractual alternatives to the multinational firm are likely to be viable this turns out to depend upon the nature of the technology the regime of appropriability within which the firm operates and the characteristics of the markets in question transactions cost analysis is also extended to the multinational enterprise host country relationship implications for management and public policy are derived

performance pay and teachers effort productivity and grading ethics this paper presents evidence about the effect of individual monetary incentives on english and math teachers in israel teachers were rewarded with cash bonuses for improving their students performance in high school matriculation exams the main identification strategy is based on measurement error in the assignment to treatment variable that produced a randomized treatment sample the incentives led to significant improvements in test taking rates conditional pass rates and mean test scores improvements were mediated through changes in teaching methods enhanced after school teaching and increased responsiveness to students needs no evidence was found of manipulation of test scores by teachers

blending top down federalism with bottom up engagement to reduce inequality in ethiopia donors increasingly fund interventions to counteract inequality in developing countries where they fear it can foment instability and undermine nation building efforts to succeed aid relies on the principle of upward accountability to donors but federalism shifts the accountability of subnational officials downward to regional and local voters what happens when aid agencies fund anti inequality programs in federal countries does federalism undermine aid does aid undermine federalism or can the political and fiscal relations that define a federal system resolve the contradiction internally this study explores this paradox via the promotion of basic services program in ethiopia the largest donor financed investment program in the world using an original panel database comprising the universe of ethiopian woredas districts the study finds that horizontal geographic inequality decreased substantially donor financed block grants to woredas increased the availability of primary education and health care services in the bottom 20 percent of woredas weaker evidence from household surveys suggests that vertical inequality across wealth groups within woredas also declined implying that individuals from the poorest households benefit disproportionately from increasing access to and utilization of such services the evidence suggests that by combining strong upward accountability over public investment with extensive citizen engagement on local issues ethiopia s federal system resolves the instrumental dissonance posed by aid funded programs to combat inequality in a federation

inputs incentives and complementarities in education experimental evidence from tanzania we present results from a large scale randomized experiment across 350 schools in tanzania that studied the impact of providing schools with i unconditional grants ii teacher incentives based on student performance and iii both of the above after two years we find i no impact on student test scores from providing school grants ii some evidence of positive effects from teacher incentives and iii significant positive effects from providing both programs most important we find strong evidence of complementarities between the programs with the effect of joint provision being significantly greater than the sum of the individual effects our results suggest that combining spending on school inputs the default policy with improved teacher incentives could substantially increase the cost effectiveness of public spending on education

the effects of grievance activity on productivity this study develops and tests a production function that includes a plant s grievance filing rate as a determinant of productivity application of that function to data on nine unionized paper mill

who co operates for innovation and why an empirical analysis abstract in recent years there has been growing interest in co operative arrangements for innovation with some commentators arguing innovation is no longer the province of individual firms but depends increasingly on collective action this paper examines the response to the uk s version of the second european community innovation survey cis 2 to investigate the patterns of co operation between innovating firms and external partners the analysis shows the relationship between innovation and co operation is not straightforward from a subjective i e firm based perspective it is clear that most firms still develop their new products processes and services without forming formal co operative arrangements for innovation with other organisations however firms that engage in r d and that are attempting to introduce higher level innovations i e new to the market rather than new to the firm innovations are much more likely to engage in co operative arrangements for innovation consequently if an objective i e innovation based perspective is taken which weighs innovations by their significance then it is likely that a significant proportion of high level innovations are developed through co operative arrangements although unfortunately the cis 2 does not indicate the direct significance of these arrangements to the development of the innovations in summary the extent of co operative arrangements for innovation appears to depend on the type of firms being considered and on what is meant by innovation

r d spillovers patents and the incentives to innovate in japan and the united states national surveys of r d labs across the manufacturing sectors in the us and japan show that intraindustry r d knowledge flows and spillovers are greater in japan than in the us and the appropriability of rents due to innovation less patents in particular are observed to play a more central role in diffusing information across rivals in japan and appear to be a key reason for greater intraindustry r d spillovers there suggesting that patent policy can importantly affect information flows uses of patents differ between the two nations with strategic uses of patents particularly for negotiations being more common in japan

independent schools and long run educational outcomes evidence from sweden s large scale voucher reform this paper evaluates average educational performance effects of an expanding independentschool sector at the compulsory level by assessing a radical voucher reform that was implemented in sweden in 1992 starting from a situation where all public schools were essentially local monopolists the degree of independent schools has developed very differently across municipalities over time as a result of this reform we regress the change in educational performance outcomes on the increase in the share of independent school students between swedish municipalities we find that an increase in the share of independent school students improves average performance at the end of compulsory school as well as long run educational outcomes we show that these effects are very robust with respect to a number of potential issues such as grade inflation and pre reform trends however for most outcomes we do not detect positive and statistically significant effects until approximately a decade after the reform this is notable but not surprising given that it took time for independent schools to become more than a marginal phenomenon in sweden we do not find positive effects on school expenditures hence the educational performance effects are interpretable as positive effects on school productivity we further find that the average effects primarily are due to external effects e g school competition and not that independent school students gain significantly more than public school students

accountability and flexibility in public schools evidence from boston s charters and pilots charter schools are publicly funded but operate outside the regulatory framework and collective bargaining agreements characteristic of traditional public schools in return for this freedom charter schools are subject to heightened accountability this paper estimates the impact of charter school attendance on student achievement using data from boston where charter schools enroll a growing share of students we also evaluate an alternative to the charter model boston s pilot schools these schools have some of the independence of charter schools but operate within the school district face little risk of closure and are covered by many of same collective bargaining provisions as traditional public schools estimates using student assignment lotteries show large and significant test score gains for charter lottery winners in middle and high school in contrast lottery based estimates for pilot schools are small and mostly insignificant the large positive lottery based estimates for charter schools are similar to estimates constructed using statistical controls in the same sample but larger than those using statistical controls in a wider sample of schools the latter are still substantial however the estimates for pilot schools are smaller and more variable than those for charters with some significant negative effects

does greater school autonomy make a difference evidence from a randomized natural experiment in south korea abstract we exploit the unique features of high schools in seoul to study the effects of school autonomy on student outcomes under south korea s equalization policy both private and public schools in seoul admit students that are assigned randomly to them receive equal government funding charge identical fees and use similar curricula however private schools have greater flexibility in personnel decisions and their principals and teachers face stronger incentives to perform we find that private high schools have better student outcomes than public high schools our results suggest that autonomy in personnel decisions explains the positive student outcomes in private schools

does raising the principal s wage improve the school s outcomes quasi experimental evidence from an unusual policy experiment in israel this paper reports estimates of the causal effects of a 50 percent increase in the salary of headmasters of high schools in israel the results suggest that the program led to significant improvements in twelfth grade students academic achievements however the effect was relatively modest comprising increases of about 5 10 percent in the school mean matriculation rate average score and number of subjects and credit units taken in matriculation programs based on these results and the lack of evidence regarding the effect of increasing teachers salary it seems that priority should be given to paying higher wages to school principals

complementarities in innovation policy this paper develops a framework for testing discrete complementarities in innovation policy using european data on obstacles to innovation we propose a discrete test of supermodularity in innovation policy leading to a number of inequality constraints we apply our test to two types of innovation decisions to innovate or not and if so by how much we find that the evidence regarding the existence of complementarity in innovation policies depends on the phase of innovation that is targeted getting firms innovative or increasing their innovation intensity as well as on the particular pair of policies that is being considered the two phases of the innovation process i e the probability of becoming an innovator and the intensity of innovation are subject to different constraints interestingly there seems to be a need to adopt a package of policies to make firms innovate while a more targeted choice among policies is necessary to make them more innovative

the paradox of openness appropriability external search and collaboration a b s t r a c t to innovate firms often need to draw from and collaborate with a large number of actors from outside their organization at the same time firms need also to be focused on capturing the returns from their innovative ideas this gives rise to a paradox of openness the creation of innovations often requires openness but the commercialization of innovations requires protection based on econometric analysis of data from a uk innovation survey we find a concave relationship between firms breadth of external search and formal collaboration for innovation and the strength of the firms appropriability strategies we show that this concave relationship is stronger for breadth of formal collaboration than for external search there is also partial evidence suggesting that the relationship is less pronounced for both external search and formal collaboration if firms do not draw ideas from or collaborate with competitors we explore the implications of these findings for the literature on open innovation and innovation strategy 2013 the authors published by elsevier b v all rights reserved

the effects of generalized school choice on achievement and stratification evidence from chile s voucher program in 1981 chile introduced nationwide school choice by providing vouchers to any student wishing to attend private school as a result more than 1000 private schools entered the market and the private enrollment rate increased by 20 percentage points with greater impacts in larger more urban and wealthier communities we use this differential impact to measure the effects of unrestricted choice on educational outcomes using panel data for about 150 municipalities we find no evidence that choice improved average educational outcomes as measured by test scores repetition rates and years of schooling however we find evidence that the voucher program led to increased sorting as the bbestq public school students left for the private sector d 2005 elsevier b v all rights reserved