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

the excess demand for subsidized child care in germany the extension of publicly provided or subsidized child care is currently one of the priorities of the political agenda in many european countries in this article the excess demand for subsidized child care slots in germany is estimated using a partial observability model the results show that there is considerable excess demand for child care for children aged less than 3 years in east and west germany even among children with working mothers

the effectiveness of child care subsidies in encouraging the welfare to work transition of low income single mothers in recent years public attitudes toward single mothers have changed dramatically and policymakers are being pressed to devise reforms that will reduce their welfare dependency in the summer of 1994 at least 11 separate welfare reform proposals were being debated by congressional committees because child care is relatively expensive compared to potential earnings for single mothers extensions to current child care assistance programs will be an integral component of any welfare reform package very little evidence exists regarding child care utilization patterns and links to employment for low income mothers exceptions include mark berger and dan black 1992 and the recent congressional testimony given by jane ross 1994 of the gao contributing to the changing attitudes toward welfare recipients is the change in the demographic makeup of the labor force overall female labor force participation rates have grown dramatically in the past 30 years from 45 percent in the mid 1960 s to 75 percent in the early 1990 s as a result subsidizing poor single mothers so that they can stay at home with their children while more and more married mothers are working for pay has become less popular this has led to the encouragement of work particularly full time work as a means of poverty reduction for single mothers unfortunately child care costs represent a significant employment barrier on average child care costs 63 per week overall and 44 per week for care by a relative for the typical single mother child care costs range between 15 percent and 30 percent of earned income depending on the mode of care and hourly wage 2

the disaggregation of corporations selective intervention high powered incentives and molecular units a vast array of organizational innovations and changes are transforming us corporations large firms have dramatically downsized refocused and vertically disaggregated they increasingly obtain goods and services pursue complex development efforts and exploit horizontal synergies without the aid of formal hierarchy large firms are also internally disaggregating into smaller more autonomous units that are treated much like external subcontractors the authors argue that these organizational innovations share an important underlying commonalty economic activity is converging toward exchange involving either internal within firm or external between firm networks of small autonomous production or service units small units and small firms have become the basic building block the molecular units of these new forms further exchange among the small autonomous units is commonly a mix of both market like and hierarchical features the authors develop a theoretical explanation for these trends the

the influence of information technology on the use of loosely coupled organizational forms an industry level analysis information technology it enhances coordination both within the firm and between the firm and its external partners consequently it investment can promote both loosely and tightly coupled organizational forms indeed in some industries widespread investment in it is associated with high levels of disaggregation in other industries this is not the case we argue that the specific influence of it on firm boundaries depends on the broader industrial context we investigate conditions whereby it investments enable industries to be more loosely coupled through alliance formation and the use of contingent workers we use transaction cost and modular systems theory to ground our theoretical development the extent to which industrywide it investment is associated with loosely coupled organizational forms depends on 1 limited asset specificity because of industry standards 2 the level of industry uncertainty resulting from technological change and 3 the overall complexity of the industry in terms of diverse inputs specifically when industry standards exist it investment leads to greater use of both alliances and contingent workers it investment has a stronger positive relationship with the use of contingent workers when levels of technological change are low as compared to when levels of technological change are high when there are high levels of input diversity and industry standards exist it investment led to an increased use of contingent workers our analyses provides a more refined view of it influence on firm boundaries

price and authority in inter profit center transactions price and authority have traditionally been regarded as alternative social mechanisms for allocating resources however actual transactions whether inter or intrafirm can be evaluated in terms of the extent to which they combine both of these mechanisms an especially revealing example of this is the exchange of goods between two profit centers in the multi profit center firm three of the most common arrangements or transfer pricing polices for effecting these transactions are examined here exchange autonomy transfers depend primarily on price with no or minimal use of authority mandated full cost transfers involve a substantial exercise of authority relative to the use of price mandated market based transfers use both authority and price in important ways for all three policies the transaction costs of these internal transactions may exceed these costs on external transactions

testing alternative theories of the firm transaction cost knowledge based and measurement explanations for make or buy decisions in information services firms boundary choices have undergone careful examination in recent years particularly in information services while transaction cost economics provides a widely tested explanation for boundary choice more recent theoretical work advances competing knowledge based and measurement cost explanations similar to transaction cost economics these theories examine the impact of exchange attributes on the performance of markets and hierarchies as institutions of governance these theories however offer alternative attributes to those suggested by transaction cost economics or offer alternative mechanisms through which similar attributes influence make buy choices traditional empirical specifications of make buy models are unable to comparatively test among these alternative theories by developing and testing a model of comparative institutional performance rather than institutional choice we examine the degree of support for these competing explanations of boundary choice hypotheses are tested using data on the governance of nine information services at 152 companies our results suggest that a theory of the firm and a theory of boundary choice is likely to be complex requiring integration of transaction cost knowledge based and measurement reasoning 1998 john wiley sons ltd

information technology and transnational integration theory and evidence on the evolution of the modern multinational enterprise reflecting amplified hazards in cross border exchange and imperfections in markets for intangibles internalization has been central in multinational enterprise mne theory this centrality notwithstanding the fact is that internalization coheres with lower powered incentives and carries an implicit drawback namely higher realized production costs with the emergence and deployment of information and communication technology ict modern mnes are reshaping their transnational governance to address this cost the modern mne uses ict to mitigate transaction costs and evolves more to arm s length exchange to incentivize lower production costs a testable prediction is that mnes in industries more susceptible to and employing more ict will exhibit a reduced propensity for transnational integration we examine this hypothesis using available data from 1982 to 1997 for us mnes across all manufacturing sectors regression results and robustness tests are strongly congruent with the prediction this study a first to explore empirically the role of ict in the evolution of transnational exchange suggests that mne theory until now founded primarily on transaction cost economics and a cross border control theory of value capture is more likely to keep pace with developments in mne practice by opening up to incentive theories of exchange governance and a cross border coordination theory of value creation

impact of information technology capital on firm scope and performance the role of asset characteristics this research draws on transaction cost and resource based theory to examine how information technology it capital moderates the relationship between different types of assets and firm scope both vertical integration and diversification the analysis suggests that it capital enables firms with narrowly valuable assets to be less vertically integrated and less diversified and enables firms with broadly valuable assets to be more vertically integrated and more diversified the moderating influence of it capital on the relationship between different types of assets and firms vertical and product market scope is consistent with transaction cost as well as resource based traditions abstract from author

worker heterogeneity job screening and firm size a model of job screening is developed in which firms make wage offers to workers based on an imperfect evaluation of their abilities if large firms have higher costs of acquiring information about workers they screen workers with less accuracy and choose a wage compensation scheme different from the one small firms choose this generates the often observed positive correlation between firm size and wages the model also predicts that wage structure and perhaps wage dispersion will differ by firm size and that individuals who acquire more schooling will also choose to work in a larger firm these hypotheses are tested and supported using data from the national longitudinal survey

child care and the labor supply of married women reduced form evidence this paper empirically analyzes family demands for market and nonmarket child care services and the impact of these demands on the work effort of married women the paperfirst develops a general model of child care and labor force participation the model predicts that higher wages increase the likelihood of labor force participation and that higher costs decrease the likelihood of child care utilization the paper then develops a threeequation reduced form econometric specification of the general model the equations in the specification are estimated simultaneously using 1985 data from the survey of income program participation the estimates reveal that the cost of market child care has a strong negative effect on the labor supply of married women

fragmenting global business processes a protection for proprietary information this study shows that when sourcing business services in foreign countries the fragmentation of processes across production units acts as an operational level adjustment variable for firms to adapt their information protection approach to the regulative environment of the host country they have selected and to the possibility to use internal controls over the activities performed abroad we hypothesize that when the above mechanisms are not available firms are more likely to fragment processes across multiple foreign production units instead of collocating all process tasks in the same unit thanks to it enabled integration capabilities firms can exploit the complementarities between the dispersed fragments of a process while reducing the misappropriation hazard of individual fragments empirical results and robustness tests are strongly congruent with these hypotheses we find also that the propensity to turn to the process fragmentation protection mechanism increases with firm host country specific experience and with the alternative value of the proprietary information involved in the activity sourced abroad

why do manufacturing facilities introduce environmental management systems improving and or signaling performance abstract in this paper we explore the motivation for the introduction of environmental management systems and their certification a distinction is drawn between their role in bringing about better compliance or improved performance and as external indicators of good environmental practices to both other market participants and regulatory authorities drawing upon a database of approximately 4000 facilities in seven oecd countries empirical evidence is found for the role that both factors play in encouraging the adoption and certification of ems s but that the relative importance of different factors varies according to facility size

measuring the convexity of the cost function abstract in this paper i argue that as might be expected the initial assumption made about the cost function will influence the empirical results obtained regarding the convexity i show that this expectation is supported empirically by estimating the parameters of two quadratic cost functions the first is that function which has been traditionally used in the literature the second is a simplified version of the quadratic cost function where the cost of changing the level of output is dropped since the evidence in the literature suggest that this variable has no significant effect on cost using physical product monthly data for 24 industries we find that the conclusion reached regarding the convexity of the cost function depends on the assumption we make regarding the cost function i further find that the simplified function is consistent with the observed behavior of production and sales while the traditional cost function is inconsistent with that behavior

entry and exit decisions in flexible teams the present study identifies a major limitation of current research on multinational enterprises mnes joint decision making in a distributed setting is of critical importance in practice but has received little attention in our theories to address this gap in knowledge we examine the effects of flexible decision teams when mnes assess turbulent markets remarkably flexible teams composed of fallible evaluators can outperform what is usually thought of as an optimal decision our main result supports the claims advanced in recent empirical studies structural flexibility can help mnes achieve high levels of performance even in conditions of turbulence

job queues and the union status of workers this paper develops a model of the determination of the union status of workers that allows for the possibility of queuing for union jobs the empirical results derived using a sample from the university of michigan panel study of income dynamics are supportive of the queuing hypothesis the no queue model can be rejected using a likelihood ratio test this suggests that a simple probit or logit model for union status is misspecified because it is not based on any consistent behavioral theory an important implication of the model is that because most new entrants to the labor market prefer union jobs but cannot get them and because accrual of nonunion seniority makes workers progressively less likely to desire union jobs the union status of workers is largely determined by their success in being selected from the queue early in their working life

trading off positive and negative service changes in childcare a choice experiment using a latent class modelling approach theoretically the choice of childcare mode should be influenced by the quality of the childcare attributes however such preference relations have been difficult to identify in past studies one

retirement intergenerational time transfers and fertility abstract retired parents might invest time in their adult children by providing childcare such intergenerational time transfers can have important implications for family decisions this paper estimates the effects of parental retirement on the fertility of their adult children we use representative panel data from germany to link observations on parents and their adult children we exploit eligibility ages for early retirement for identification in a regression discontinuity and pension reforms in a difference in differences design the results suggest that parents retirement positively influences the fertility of their adult children which is mainly driven by an increase in the likelihood of having a second birth however while parental retirement affects the timing of the fertility of their adult children it does not affect the children s total fertility

change and complementarities in the new competitive landscape a european panel study 1992 1996 this paper addresses three weaknesses in the literature on new organizational forms the limited mapping of the extent of contemporary organizational change confusion about how contemporary changes link together and the lack of systematic testing of the performance consequences of this kind of change drawing on a large scale survey of organizational innovation in european firms the paper finds widespread but not revolutionary change in terms of organization structure processes and boundaries using the economics notion of complementarities the paper develops contingency and configurational approaches to suggest that organizational innovations will tend to cluster in particular ways and that the performance benefits of these innovations depend on their clustering complementarities in performance are explored from both inductive and deductive perspectives consistent with the expectations of complementarity theory high performing firms appeared to be innovating more and differently than low performing firms again consistent with complementarities piecemeal changes with the exception of it were found to deliver little performance benefit while exploitation of the full set of innovations was associated with high performance though few european firms were found to exploit the complementarities of new organizational practices those that did enjoyed high performance premia

forgiveness in vertical relationships incentive and termination effects two types of contractual solutions have been proposed for resolving incentive conflicts in vertical relationships formal and relational i e enforceable or not by third parties much is known about the optimal structure of formal contracts but relatively little is known about the structure of relational contracts we study a core feature of the latter the conditions leading to continuation of the relationship whose prospect gives relational contracts their force we build a formal model of a vertical relationship between two parties that endogenizes the choice of the minimum performance necessary for continuation as a function of the values of contractibles noncontractibles and outside options the model highlights a basic trade off between providing strong incentives for the present incentive effect and safeguarding relationships for the future termination effect the stable relationships that follow from a more forgiving contract are more important under certain conditions when a lot of value is jointly created by exchange partners i e high contractible value high noncontractible value or unattractive outside options however strong incentives from a less forgiving contract are more important under other conditions when a formal contract is insufficient and a relational contract is most important i e high noncontractible relative to contractible value we discuss implications for the choice of governance of interorganizational relationships

what lies between market and hierarchy insights from internalization theory and global value chain theory in this paper we suggest that internalization theory might be extended by incorporating complementary insights from gvc theory more specifically we argue that internalization theory can explain why lead firms might wish to externalize selected activities but that it is largely silent on the mechanisms by which those lead firms might exercise control over the resultant externalized relationships with their gvc partners we advance an explanation linking the choice of control mechanism to two factors power asymmetries between the lead firms and their gvc partners and the degree of codifiability of the information to be exchanged in the relationship

closed or open innovation problem solving and the governance choice scholars have recently highlighted the promise of open innovation in this paper we treat open innovation in it s different forms and manifestations as well as internal or closed innovation as unique governance forms with different benefits and costs we discuss how each governance form whether open or closed is composed of a set of instruments that access a different types of communication channels for knowledge sharing b different types of incentives and c different types of property rights for appropriating value from innovation we focus on the innovation problem as the central unit of analysis arguing for a match between problem types and governance forms which vary from open to closed and which support alternative forms of solution search in all the goal of this paper is to provide a comparative framework for managing innovation where we delineate and discuss four categories of open innovation governance forms markets partnerships contests and tournaments and user or community innovation and compare them with each other and with two internal or closed forms of innovation governance authority and consensus based hierarchy

an efficient frontier in organization design organizational structure as a determinant of exploration and exploitation this paper develops a parsimonious process level theory that connects organizational structure to exploration and exploitation toward this end it develops a mathematical model of organizational decision making that combines an information processing approach in the spirit of sah and stiglitz sah rk stiglitz je 1986 the architecture of economic systems hierarchies and polyarchies amer econom rev 764 716 727 with elements from signal detection theory the model is first used to explore a design space of organizations and identify trade offs and dominance relationships among alternative organization designs the paper then studies open questions in the organization design literature such as the extent to which exploration and exploitation can be produced by one organization and what is the effect of organization size on exploration more broadly this research speaks to calls for the introduction of more process level explanations in the organizations literature the paper concludes with testable hypotheses and managerially relevant insights

explaining the swollen middle why most transactions are a mix of market and hierarchy why are firms sometimes more efficient than markets at organizing transactions why are most transactions arrayed neither at the pure market nor at the pure hierarchy end of the continuum but rather in the swollen middle incorporating features of both market and hierarchy why don t firms make greater use of price incentives this paper addresses these three questions by developing a model of the choice of institution one key building block is the distinction between organizing methods hierarchy and the price system and institutions firms and markets hierarchy and the price system are two distinct methods for organizing transactions each with particular costs and benefits markets and firms are institutions which use one or both of these methods although markets predominantly use prices and firms rely principally on hierarchy there is not a one to one correspondence between prices and markets or between hierarchy and firms indeed the paper argues that it is generally more efficient to use a mix of both methods than to specialize in either the paper focuses on the enforcement properties of prices and hierarchy hierarchy controls individuals directly by constraining their behavior by imposing behavior constraints while prices do it indirectly by measuring their outputs through price constraints under hierarchy individuals receive a salary to do as told while self employed individuals governed by the price system are rewarded on the basis of their output each system has its own biases using prices maximizes effort minimizes shirking but incites individuals to inflate the price and or reduce the quality of their output it encourages cheating relying on hierarchy results in the opposite bias under hierarchy individuals are not paid in function of their output but instead are rewarded for following directives they have thus strong incentives to minimize effort to shirk unless properly supervised but being paid a fixed sum to follow orders they have few incentives to cheat hence the price system experiences low shirking but potentially high cheating costs while hierarchy faces low cheating but high shirking costs organizing costs are the sum of shirking and cheating costs any given transaction will be organized by the mix of price and hierarchy i e by the mix of price and behavior constraints that minimizes organizing costs a transaction will be organized within a firm if the reduction in cheating costs achieved by replacing price constraints by behavior constraints exceeds the resulting increase in shirking costs and by the market in the opposite case the paper shows that cheating and shirking costs increase more than proportionately as one concentrates in either pure price or behavior constraints hence using a mix of both methods generally minimizes the sum of cheating and shirking costs this explains why most transactions exhibit features of both markets and hierarchy the paper shows clearly the tradeoff involved between price and behavior constraints it explains the costs and benefits of using two types of price incentives in firms piecework and profit centers and predicts when they will be used

selective intervention and internal hybrids interpreting and learning from the rise and decline of the oticon spaghetti organization infusing hierarchies with elements of market control has become a much used way of simultaneously increasing entrepreneurialism and motivation in firms however this paper argues that such internal hybrids particularly in their radical forms are inherently hard to successfully design and implement because of a fundamental incentive problem of establishing credible managerial commitments to not intervene in delegated decision making this theme is developed and illustrated using the case of the world leading hearing aids producer oticon in the beginning of the 1990s oticon became famous for its radical internal hybrid the spaghetti organization recent work has interpreted the spaghetti organization as a radical attempt to foster dynamic capabilities by organizational means neglecting however that about a decade later the spaghetti organization has given way to a more traditional matrix organization in contrast an organizational economics interpretation of oticon organizational changes is developed this lens suggests that a strong liability of the spaghetti organization was the above incentive problem frequent managerial meddling with delegated rights led to a severe loss of motivation and arguably caused the change to a more structured organization refutable implications are developed and the discussion is broadened to more general issues of economic organization

taxing the multinational enterprise on the forced redesign of global value chains and other inefficiencies the taxation of the multinational enterprise mne has been a continuing concern for policymakers we argue that the changing nature of the mobile mne e g its improved ability to fine slice the value chain and disperse it geographically makes it increasingly important to rethink current tax policies first there should be more focus on the inefficiencies that arise when taxation leads to the inefficient location of mne activities thus mnes may shift activities to low tax jurisdictions that offer lucrative pecuniary and non pecuniary incentives but do not enable their investments to maximize their contribution to global value creation second international tax regimes should ensure that mnes pay for their consumption of local public goods and public finance scholars have long known that the taxation based distortions are minimized when the tax objects are immobile however the bulk of current tax policies are aimed at corporate profits that are both poor proxies for the consumption of local public goods as well as extremely mobile integrating theory from international business public finance and economic geography our analysis demonstrates that moving the incidence of taxation from corporate profits to dividends and consumption would unambiguously improve both wealth creation and efficiency

simultaneously modeling the supply of weeks and hours of work among female household heads this paper explores the differential nature of labor supply decisions regarding weeks of work per year and hours of work per week among female household heads a model of labor supply that separates the weeks hours decision is presented and estimated allowing for simultaneity in the weeks hours decision as well as for the presence of either fixed costs or weeks and hours constraints the results indicate that not only are weeks and hours decisions separate from the labormarket participation decision but they are also quite different from each other although they appear to be simultaneously determined

the effect of child care costs on married women s labor force participation the effect of child care costs on the probability that married women with children will participate in the labor market is examined child care costs are estimated using a generalized tobit specification corrected for selection estimates of a structural probit model of labor force participation provide evidence to support the prediction that increased child care costs lower the probability of participation it is also shown that the lower rate of labor force participation among mothers of preschoolers is entirely the result of the higher child care costs faced by these women and endogeneity of the number of young children in the participation equation copyright 1992 by mit press

the quantitative role of child care for female labor force participation and fertility consistent with facts for a cross section of oecd countries i document that the labor force participation rate of west german mothers with children aged zero to two exceeds the corresponding child care enrollment rate whereas the opposite is true for mothers with children aged three to mandatory school age i develop a life cycle model that explicitly accounts for this age dependent relationship through various types of non paid and paid child care the calibrated version of the model is used to evaluate two policy reforms concerning the supply of subsidized child care for children aged zero to two these counterfactual policy experiments suggest that the lack of subsidized child care constitutes indeed for some females a barrier to participate in the labor market and depresses fertility

the impact of information and communication technology adoption on multinational firm boundary decisions this article evaluates the effect of adopting internet enabled information and communication technology ict adoption on the decision to reorganize production across national borders foreign boundary decision by multinational enterprises mnes using a transaction cost framework we argue that ict adoption influences foreign boundary decisions by lowering coordination costs both internally and externally for the firm we propose that the heterogeneity in the technology s characteristics namely complexity and the production processes degree of codifiability moderate this influence using a difference in differences methodology and exploiting the richness of confidential us census bureau microdata we find that overall ict adoption is positively associated with greater likelihood of in house production as measured by increases in intra firm trade shares furthermore we find that more complex forms of ict are associated with larger increases in intra firm trade shares finally our results indicate that mnes in industries in which production specifications are more easily codified in an electronic format are less likely to engage in intra firm relative to arm s length trade following ict adoption

agency costs and innovation abstract stylized facts indicate that small firms are responsible for a disproportionate share of innovative research there are many possible explanations for this fact the paper seeks to understand this phenomenon as the outcome of an optimal assignment of tasks across individuals and organizations it is shown that incentive costs associated with a given task depend on the total portfolio of tasks that an individual or an organization undertakes mixing hard to measure activities innovation with easy to measure activities routine is particularly costly since it will either lead to misallocation of attention across tasks or to misallocation of risk larger firms are at a comparative disadvantage in conducting highly innovative research because of the costs associated with managing a heterogeneous set of tasks it is further argued that optimal organizational responses to coordination and control of routine tasks will lead to bureaucratization within the firm and to financial constraints imposed by capital markets both of which are hostile to innovation

child care costs as a barrier to employment for single and married mothers because women typically serve as primary care providers for their children female labor force participation behavior is likely to be affected significantly by the costs associated with replacing maternal care with nonmaternal care while some evidence of this phenomenon exists in the economics literature discrepancies across studies make it difficult to provide conclusive evidence of the employment effects of these child care costs this paper uses an improved sipp survey design to present new evidence regarding the degree to which child care prices impede mothers employment behavior with additional evidence of the difference in these elasticities across marital status empirical technique and equation specification this permits linking this paper to the existing evidence drawing the conclusion that child care prices impede mothers employment behavior significantly with single mothers exhibiting less responsiveness in their labor force participation behavior to child care price changes than marri

children of a policy revolution the introduction of universal child care and its effect on fertility what role does affordable and widely available public child care play for fertility we exploit a major german reform generating large temporal and spatial variation in child care coverage for children under the age of three our precise and robust estimates on birth register data reveal that increases in public child care have significant positive effects on fertility the fertility effects are more pronounced at the intensive than at the extensive margin and are not driven by changes in the timing of births or selective migration our findings inform policy makers concerned about low fertility by suggesting that universal early child care holds the promise of being an effective means of increasing birth rates

price quality and income in child care choice recent legislation may substantially expand federal assistance in paying for child care this paper examines the potential effects of three aspects of federal assistance reducing child care price through vouchers or grants to providers improving its quality through incentives or regulation and increasing family income through tax credits on the child care choices employed mothers make the data come from the 1985 wave of the national longitudinal survey of youth ohio state university both multinomial and universal logit models are used the results suggest that price is a critical variable in child care choice the higher the price the lower the probability a mode of care will be chosen parents do not consistently select high quality care although overall quality improvements may increase the use of family day care mothers who earn more per hour and families who have higher incomes other than the mother s earnings are more likely to select center care over other modes consequently subsidizing child care expenditures directly through vouchers and reduced fees or increasing other family income through tax credits consistently increases the use of center based programs all else equal

the sensitivity of an empirical model of married women s hours of work to economic and statistical assumptions this study undertakes a systematic analysis of several theoretic and statistical assumption s used in many empirical models of female labor supply using a singl e data set psid 1975 labor supply data the author is able to replic ate most of the range of estimated income and substitution effects fo und in previous studies in this field he undertakes extensive specif ication tests and finds that most of this range should be rejected du e to statistical and model misspecifications the two most important assumptions appear to be the tobit assumption used to control for sel f selection into the labor force and exogeneity assumptions on the wi fe s wage rate and her labor market experience copyright 1987 by the econometric society

employment of new mothers and child care choice differences by children s age working women frequently withdraw from the formal labor market for a period of time following their 1st birth while more than 1 3 of these mothers return to work within 3 months 1 2 remain out of formal employment 2 years after giving birth this paper examines the determinants of womens return to the labor market within 2 years of childbirth and the type of child care women choose employing data from the national longitudinal survey of youth the study found economic incentives to have powerful effects upon mothers work behavior despite cultural norms which may encourage mothers to care for their very young children mothers wages and other family income were important determinants the relationship between child care costs and work and child care choice change as children age with mothers being most sensitive to the psychic and financial costs of care in the months immediately following childbirth specifically the presence of mothers personal wages relates positively to early return to work and higher family income delays return to work greater child care tax credits increase the return to work within 3 months yet have little effect on later labor supply neither wages income nor tax credits significantly affected child care choice overall financial variables had less impact on type of child care than on the decision to work

the recognition and reward of employee performance this paper examines when and to what extent an individual s relative wage depends on his her productivity relative to others doing the same job starting wages were influenced by background characteristics and training cost realizations but not by relative productivity wages one year later were influenced by productivity but the effects were small the wage elasticity was 2 at small establishments and 0 at establishments with over 400 employees the wage response to relative productivity and training costs was weaker in small labor markets suggesting that wages do not fully respond to performance because of the firm specificity of job performance differentials

reducing incremental costs associated with the delegation of incentive contracting decisions an analysis of planning and control decisions in a manufacturing setting in the presence of moral hazard abstract we compare and contrast two specific regimes involving the centralization and delegation of the incentive contracting decision in manufacturing organizations in the centralization regime a single individual simultaneously makes the allocation of demand to production facilities and determines the incentive compensation scheme for the managers at the facilities under the delegation regime the demand allocation is decided upon initially by a superior and the incentive contracting decision is subsequently made by a subordinate who is neither of the two managers in charge of the production facilities using the principal agent paradigm which assumes that the managerial efforts are unobservable we demonstrate that the centralization regime performs no worse than the delegation regime for situations where strategic or other requirements necessitate firms to opt for the delegation of the incentive contracting decision we propose a heuristic that significantly increases the likelihood of mimicking the allocation and contracting decisions made under the centralized regime

the effect of child care costs on the employment and welfare recipiency of single mothers 1 introduction for all mothers of young children entering the labor market is strongly linked with the need for child care opportunities for caring for children while in the labor market are few in a developed economy in many cases the husband or another family member serves as caregiver but approximately 50 ic of preschoolers with a working mother are cared for by nonrelatives casper 1997 some of these arrangements involve a substantial amount of money in 1993 the average weekly cost of care was 59 for home based care 68 for center based care and 48 for care provided by a relative this can represent one fourth of earnings for single mothers working full time at the minimum wage kimmel 1994 such substantial money expenditures coupled with transportation needs both to work and to day care as well as the uncertainty of many child care arrangements are expected to keep many mothers of young children out of the labor market thus the relationship between employment and child care for these mothers is thought to play a strong role in the link between welfare recipiency and child care welfare programs before and after welfare reform have targeted child care as a barrier to employment 1 before welfare reform child care subsidies were available to some recipients through federal title iv a funding sources for child care afdc jobs at risk transitional child care and through the child care development block grant these funds often came with matching requirements from the states the personal responsibility and work opportunity reconciliation act of 1996 prwora consolidated all these funds into state block grants thereby permitting the states to design their own child care assistance schemes states may supplement federal child care block grants with state dollars but there is no longer a required state match thus while the total federal dollar amount allocated to child care in temporary assistance for needy families tanf exceeds former federal aid to families with dependent children afdc child care commitments because tanf requires less in state matching expenditures it is unclear what will happen to total child care expenditures as welfare reform evolves early postreform evidence suggests that while overall child care spending at the state level has increased the increase is less than would have occurred had the matching requirements been retained a recent study of welfare leavers reports that few are receiving subsidies schumacher and greenberg 1999 and only 1 24 million of the approximately 10 million children eligible for federally funded support received assistance in 1997 u s department of health and human services 1999 underlying states expenditures on child care subsidies are their subsidy eligibility guidelines participation in such subsidy programs by the eligible population and availability of subsidized slots or funds for those families applying for such funds only a small percentage of families eligible for subsidies based on the federal maximum income limits receive such support federal guidelines as outlined in prwora stipulate that federally financed child care subsidies can be made available to families with incomes up to 85 of the state s median income however as of july 1999 only five states had set their eligibility guidelines at the federal maximum in addition participation by the state defined eligible group is quite low partially because of a lack of information city officials in san francisco have used an innovative peer outreach program to increase participation by the eligible population and by the start of 2000 the city was enrolling 50 of the estimated eligible population an enrollment rate twice the statewide average heymann 2000b extensive data on post tanf behavior are not yet available nor will they be for some time however there is some evidence that workers continue to report that availability and cost of child care are barriers to self sufficiency

comparison of two empirical cost functions abstract in this paper we compare two hypotheses regarding the cost function that have been used in past studies of production smoothing the two hypotheses tested are not nested the comparison is done using two types of tests designed for non nested hypotheses the j test of davidson and mckinnon and the encompassing test each of the models was capable of explaining much of the observed monthly output variations in the twenty four industries studied yet the j test leads us to reject both models the results of the encompassing test however indicate that each of the models contributes significantly to the explanation of output variation after accounting for the contribution of the alternative model

production smoothing evidence from physical product data we reconsider the paradox that the variance of production often exceeds the variance of shipments a result that casts doubt on the production smoothing model of inventory behavior most studies of production smoothing have analyzed two digit sic dollar value data from commerce department surveys in contrast this paper examines disaggregated physical product data and finds that production is smoother than shipments in about two thirds of the 38 industry or product groupings considered however doubts about the model persist most notably euler equation estimates of the model s cost parameters are usually imprecise and often do not have the signs postulated by production smoothing models

marital status and full time part time work status in child care choices using recent sipp data this study estimates two econometric models to study the differences in the effect of child care costs on employment status and differences in the mode of child care used controlling for employment status for both married and single women full time employment is more elastic with respect to changes in the price of child care than part time employment and employment elasticities are larger for single than married mothers in the model of child care modal choice we find that an increased probability of full time employment is associated with an increase in the use of centre care for both married and single mothers and that price elasticities of modal choice are larger for single than married mothers

the demand for quality in child care we estimate a model of demand for quality related attributes of child care group size staff child ratio and provider training the model is estimated jointly with equations for mode expenditure on and hours of care and the mother s labor supply the results show that a lower price of child care in a particular mode leads to substitution toward that mode and an increase in the use of paid child care a decrease in the price of care causes an increase in hours of care demanded and a decrease in the demand for qualityrelated attributes income effects on demand for quality are small

a game theoretic explanation of the administrative lattice in institutions of higher learning abstract we provide a game theoretic model of academic organizations focusing on the strategic interaction of prototypical overseers administrators and professors by identifying key principal agent games routinely played in colleges and universities we begin to unpack the black box typically used to conceptualize these institutions our approach suggests an explanation for the seemingly inevitable drift of institutions of higher education into such well documented phenomena as academic ratchet and administrative lattice and builds an understanding of the organizational conditions in which drift would be restrained

a structural model of child care and the labor supply of married women this article empirically examines married women s labor supply and child care expenditures the article uses winter 1984 85 data from the survey of income and program participation to estimate a fu

child care costs and family labor supply this paper presents a theoretical and empirical analysis of the effects of child care costs on family labor supply and the demand for market child care the model is a framework for cross section estimation of the effects of child care costs on labor supply and child care use it applies to households having young children requiring continuous care and in which both the mother and 1 other potential child care provider are present the 3 potential sources of child care are the mother the potential informal provider and the market using data from the 1980 baseline household survey of the employment opportunity pilot projects this empirical analysis uses a subsample of 6170 households in which there is a married woman under age 45 with her spouse present at the time of the survey at least 1 child under age 14 and nonmissing data on key variables results show that 1 higher market child care costs discourage women from working even when an informal source of care is available indicating that such informal care is an imperfect substitute for market care 2 a higher wage rate for the mother encourages her to work thus a higher wage rate increases the probability of using market child care 3 the number of children requiring care has a negative impact on the probability of the women working with the largest impact caused by younger children 4 nonwage income has a negative impact on the probability of the woman working and 5 black women are more likely to work than whites and are statistically more likely than whites to use market child care if they do work this family labor supply model predicts that the cost of market child care will affect household decisions on labor supply and child care use estimates of a qualitative choice model provide strong confirmation that child care costs affect such decisions the responsiveness of the labor supply of mothers to child care costs demonstrated in this study indicate that such subsidies do have their intended effect of encouraging labor supply the fact that a large proportion of current child care subsidies benefit primarily middle and upper income families via the income tax credit suggests that the labor supply effets of such subsidies may in practice be stronger for less needy families than for low income families employer subsidized child care may become an increasingly popular tool for attracting mothers into the labor force

a structural model of labor supply and child care demand this paper specifies and estimates a structural model in which the decision to purchase market child care and the quality purchased is made simultaneously with the employment decision of the mother separate analyses are performed for married mothers and single mothers the structural estimates are used to simulate the effects and costs of changes in the federal child care tax credit the simulations indicate that a refundable child care tax credit would distribute child care benefits more equally across the population by increasing the shares of subsidies received by low income families and would induce a considerable increase in expenditures on market child care labor supply also increases but by considerably less than child care expenditures a surprising result is that despite large increases in child care

should day care be subsidized in the presence of distortionary taxes on labor can subsidies on childcare flnanced by a further increase in taxes raise welfare by encouraging women with small children to work we approach this question in two difierent ways first we consider a set of stylized models where we prove analytically that under some conditions the ramsey optimal policy consists in making childcare expenses tax deductible then we construct a calibrated stochastic dynamic life cycle model of household decision making designed to capture some facts about labor supply in germany we flnd that the welfare gains associated with subsidizing childcare are considerable and that the maximum gains are realized when childcare is subsidized to an even greater extent than what tax deductibility implies

household childcare choices and women s work behavior in russia the author models mothers participation in the labor force their working hours and household demand for childcare in russia the model estimates the effects of the price of childcare mothers wages and household income on household behavior and well being the theoretical model yields several predictions to test these reduced form equations of the discrete and continuous household choices are estimated jointly using the method of semi parametric full information maximum likelihood this method controls for the correlation of error terms across outcomes and the correlation of error terms that can result when panel data are used the results of this analysis indicate that the extent to which mothers participate in the labor force and for how many hours depends on the costs of childcare and on what level of hourly wage is available to them and to other members of the household the author s simulations show that family allowances intended to reduce poverty do not significantly affect the household choice of childcare arrangements replacing family allowances with childcare subsidies might have a strong positive effect on women s participation in the labor force and thus could be effective in reducing poverty