the utilization of competing technologies within the firm evidence from cardiac procedures this paper examines the role of technological status in determining the rates at which competing techniques are used within a firm consistent with prior studies technological status is measured on the basis of an actor s prior contributions to the body of knowledge concerning a given technique the empirical analysis considers two treatments for coronary artery disease cad each of which is associated with a distinct professional group within a hospital these two groups are often characterized as engaging in a turf war for patients after controlling for several factors that might explain technological choice the clinical severity of patients the relative quality of the two procedures at a given facility firm level financial performance and other firm level characteristics i find that the technological status of the group associated with each technique affects the relative rate at which it is used within a given hospital moreover this effect is strongest for patients at the margin between the two techniques these results suggest that viewing the choice between competing innovations as a single firm level decision may not always capture the true dynamics underlying such a situation

the economics of small business finance the roles of private equity and debt markets in the financial growth cycle abstract this article examines the economics of financing small business in private equity and debt markets firms are viewed through a financial growth cycle paradigm in which different capital structures are optimal at different points in the cycle we show the sources of small business finance and how capital structure varies with firm size and age the interconnectedness of small firm finance is discussed along with the impact of the macroeconomic environment we also analyze a number of research and policy issues review the literature and suggest topics for future research

financial development and financing constraints international evidence from the structural investment model this article provides evidence that financial development impacts growth by reducing financing constraints that would otherwise distort efficient allocation of investment the financing constraints are inferred from the investment euler equation by assuming that the firm s stochastic discount factor is a function of the firm s financial position specifically the stock of liquid assets the magnitude of the changes in the cost of capital is twice as large in a country with a low level of financial development as in a country with an average level of financial development the size effect business cycles and legal environment effects are also considered copyright 2003 oxford university press

estimating level effects in diffusion of a new technology barcode scanning at the checkout counter cross country or cross industry studies of technology diffusion typically estimate how independent factors affect diffusion speed or timing often based on a two stage approach in many applications however countries industries differ most in the saturation level of diffusion in a single stage econometric approach to a standard diffusion model we therefore estimate how the saturation level covaries with independent factors in our application to diffusion of an important retail information technology we focus on the competitive effect of hypermarkets superstores we also find standard scale income and labour substitution effects

incrementality of sme loan guarantees in many countries loan guarantee programs are important elements of government policy with respect to small and medium sized enterprises smes if loan guarantee schemes are to be effective a majority of firms obtaining assistance through such a scheme ought not to be able to obtain financing from existing sources a property known as incrementality or additionality this paper describes a new approach to measuring incrementality this work uses a two stage process to estimate the incrementality of loans made under the terms of the canada small business financing csbf program first a logistic regression based model of loan outcomes essentially a credit scoring model is estimated based on a large representative sample of smes the resulting model was consistent with prior expectations and exhibited high levels of goodness of fit the model was then employed to classify a sample of firms that had received loans under the terms of the loan guarantee scheme incremental loans ought to be classified as turndowns by the model hence the proportion of loan guarantee recipients that the model classified as turndowns is a direct measure of incrementality for the csbf loan guarantee program incrementality was estimated with 95 confidence as 74 8 9 0

do people understand monetary policy abstract we combine questions from the michigan survey about future inflation unemployment and interest rates to investigate whether households are aware of the basic features of u s monetary policy our findings provide evidence that some households form their expectations in a way that is consistent with a taylor 1993 type rule we also document a large degree of variation in the pattern of responses over the business cycle in particular the negative relationship between unemployment and interest rates that is apparent in the data only shows up in households answers during periods of labor market weakness

market structure uncertainty and intrafirm diffusion the case of optical scanners in grocery stores this study uses monthly data on the adoption of optical scanners by sixty three grocery chains in thirty two large u s cities to identify the determinants of the rate of intrafirm diffusion the methodology involves a two stage approach that relates market environment characteristics to the estimated rate of intrafirm diffusion the results indicate that firms with larger market shares adopt a new innovation scanners more quickly initially but diffuse the innovation through their stores more slowly than firms with smaller market shares in addition firms that lag competitors in the initial adoption of scanners tend to diffuse the innovation more quickly copyright 1992 by mit press

experimental evidence on returns to capital and access to finance in mexico a strong theoretical argument for focusing on access to finance is that financial market imperfections can result in large inefficiencies as firms with productive investment opportunities underinvest lack of access to finance is a frequent complaint of microenterprises which account for a large share of employment in developing countries however assessing the extent to which a lack of capital affects their business profits is complicated by the fact that business investment is likely to be correlated with a host of unmeasured characteristics of the owner and firm such as entrepreneurial ability and demand shocks in a randomized experiment that gave cash and in kind grants to small retail firms providing an exogenous shock to capital the shock generated large increases in profits with the effects concentrated among firms that were more financially constrained the estimated return to capital was at least 20 33 percent a month three to five times higher than market interest rates

microenterprise growth and the flypaper effect evidence from a randomized experiment in ghana standard models of investment predict that credit constrained firms should grow rapidly when given additional capital and that how this capital is provided should not affect decisions to invest in the business or consume the capital we randomly gave cash and in kind grants to male and female owned microenterprises in urban ghana for women running subsistence enterprises we find no gain in profits from either treatment for women with larger businesses we strongly reject equality of the cash and in kind grants only in kind grants cause growth in profits suggesting a flypaper effect whereby capital coming directly into the business sticks there but cash does not the results for men also suggest a lower impact of cash but differences between cash and in kind grants are less robust there is suggestive evidence that the difference in the effects of cash and in kind grants is associated more with lack of self control than with external pressure

information rigidity and the expectations formation process a simple framework and new facts we propose a new approach to test the full information rational expectations hypothesis which can identify whether rejections of the null arise from irrationality or limited information this approach quantifies the economic significance of departures from the null by quantifying the underlying degree of information rigidity applying this approach to u s and international data of professional forecasters and other agents yields pervasive evidence consistent with models of imperfect information furthermore the proposed approach sheds new light on policies such as inflation targeting and those leading to the great moderation affecting expectations finally we document evidence of state dependence in the expectations formation process

how do firms form their expectations new survey evidence author s coibion o gorodnichenko y kumar s abstract 2018 american economic association all rights reserved we survey new zealand firms and document novel facts about their macroeconomic beliefs there is widespread dispersion in beliefs about past and future macroeconomic conditions especially inflation this dispersion in beliefs is consistent with firms incentives to collect and process information using experimental methods we find that firms update their beliefs in a bayesian manner when presented with new information about the economy and that changes in their beliefs affect their decisions inflation is not generally perceived as being important to business decisions so firms devote few resources to collecting and processing information about inflation

inflation expectations and consumer spending at the zero bound micro evidence i introduction many theoretical studies suggest that policy makers can generate greater current spending by making people believe in higher future inflation when nominal interest rates are stuck at the zero lower bound zlb krugman 1998 using a simple two period model and with japan s low interest rate environment in the 1990s in mind was the first to show that a central bank s commitment to high inflation is effective eggertsson and woodford 2003 show that this proposition is relevant even in a standard dynamic stochastic general equilibrium dsge model more recently with many central banks such as the federal reserve starting to face the zlb and to cope with weak economic demand many policy proposals have been made based on the perception that an increase in expected inflation is a good thing to stimulate economic activity 1 the logic for these suggestions is based on the fisher equation and the intertemporal substitution effect if nominal interest rates are fixed higher inflation expectations lead to lower real interest rates creating an incentive to spend now rather than in the future however according to basic economic theory lower real interest rates may suppress current spending if adverse forces such as the income effect dominate the intertemporal substitution effect thus the consequences of low real interest rates are an empirical matter therefore the question arises why standard dsge models somewhat confidently suggest that the substitution effect dominates other effects a large number of empirical studies which typically use vector autoregression var models show that if central banks unexpectedly reduce nominal short term interest rates or if a negative monetary shock occurs spending is stimulated standard dsge models are constructed to match such findings for example christiano eichenbaum and evans 2005 show that their dsge model can replicate the var estimates of impulse responses following a monetary policy shock in such models given that prices and thus expected inflation are sticky a lower nominal interest rate leads to a lower real interest rate which generates greater current spending based on the implicit assumption that the intertemporal substitution effect dominates other adverse effects several studies including eggertsson and woodford 2003 incorporate the zlb into such dsge models and suggest that even the expectation of a modest inflationary boom in the future has a dramatic effect on current spending by lowering real interest rates however as mentioned above the justification of standard dsge models largely depends on empirical results about the effects of changes in nominal interest rates rather than changes in expected inflation and these results are obtained using the data of major industrialized countries that did not face the zlb constraint until very recently in fact there are only few studies that directly examine the effects of inflation expectations on consumer spending using data in a zlb environment bachmann berg and sims 2014 examine this issue using the micro data from the michigan survey of consumers conducted in the united states the michigan survey collects repeated cross sectional data on quantitative measures of expected inflation as well as qualitative measures of readiness to spend namely responses to questions about whether now is a good or bad time to buy durable goods the data are available at a monthly frequency and cover the period from january 1984 to december 2012 bachmann berg and sims 2014 regard the period from december 2008 onward as the zlb period the estimation result of their baseline ordered probit model is the opposite of the prediction of standard theoretical models the impact of expected inflation on the readiness to spend on durables is negative and statistically significant although small in absolute value at the zlb they then consider several potential explanations underlying these results including nominal money illusion that is households understand how nominal interest rates impact the intertemporal relative prices between spending now and spending in the future but they may not understand how inflation expectations do

innovations and the economics of new technology spreading within and across users gaps and way forward r d subsidies are often considered the main policy tool to stimulate the competitiveness and the innovativeness of firms this is especially true for innovations designed to produce greener products or cleaner and more energy efficient technologies however a consistent literature has now shown that even when a clean or a cost reducing technology is ready available in the market its spreading within intra or across inter households or firms takes several years and in some cases decades therefore it is not only important to generate innovations via investments in r d but it is also important that such innovations are adopted and used by firms this paper briefly illustrates the main theoretical approaches to the analysis of the factors leading to inter firm diffusion and emphasise the existing gap led by the paucity of literature on intra firm diffusion a final section briefly discusses some methodological issues surrounding the diffusion of consumer non durable technologies within and across households and how ad hoc models can be used to test the validity of environmental policies

estimates of gender differences in firm s access to credit in sub saharan africa based on firm level data from 16 sub saharan african countries we show how three different measures of credit constraints lead to three different estimates of gender differences in manufacturing firms credit situation using a perception based credit constraint measure female owned firms appear relatively more constrained than male owned firms using formal financial access data we find no gender effect finally using direct information on credit constraints male owned small firms appear disadvantaged furthermore we show a strong size gradient in the gender gap for the two measures for which we find significant gender differences

inflation expectations and firm decisions new causal evidence author s coibion o gorodnichenko y ropele t abstract 2019 the author s we use a unique design feature of a survey of italian firms to study the causal effect of inflation expectations on firms economic decisions in the survey a randomly chosen subset of firms is repeatedly treated with information about recent inflation whereas other firms are not this information treatment generates exogenous variation in inflation expectations we find that higher inflation expectations on the part of firms leads them to raise their prices increase demand for credit and reduce their employment and capital however when policy rates are constrained by the effective lower bound demand effects are stronger leading firms to raise their prices more and no longer reduce their employment

is the growth of small firms constrained by internal finance this paper examines the long standing theory that the growth of small firms is often constrained by the quantity of internal finance under plausible assumptions when financing constraints are binding an additional dollar of internal finance should generate slightly more than an additional dollar of growth in assets this quantitative prediction should not hold for the relatively small number of firms which access external equity we test these predictions with a panel of more than 1 600 small firms and find that the growth of most firms is constrained by internal finance our results have implications for several different research literatures including models of firm growth

paralyzed by fear rigid and discrete pricing under demand uncertainty we propose a new theory of price rigidity based on firms knightian uncertainty about their competitive environment this uncertainty has two key implications first firms learn about the shape of their demand function from past observations of quantities sold this learning gives rise to kinks in the expected profit function at previously observed prices making those prices both sticky and more likely to reoccur second uncertainty about the relationship between aggregate and industry level inflation generates nominal rigidity we prove the main insights analytically and quantify the effects of our mechanism our estimated quantitative model is consistent with a wide range of micro level pricing facts that are typically challenging to match jointly it also implies significantly more persistent monetary non neutrality than in standard models allowing it to generate large real effects from nominal shocks

can government demand stimulate private investment evidence from u s federal procurement abstract demand shocks lower firm financing premiums by increasing the present value of cash flow thereby easing firm financing constraints we study the effects of unanticipated federal spending shocks on firm investment in the united states using a novel panel dataset that combines federal procurement contracts with key financial firm level information consistent with the financial accelerator model our results suggest that 1 dollar of federal purchases increases capital investment of financially constrained firms by 10 to 13 cents over a horizon of 4 quarters but has no effect on investment of unconstrained firms

the benefits of formalization evidence from vietnamese manufacturing smes summary based on unique panel data consisting of both formal and informal firms this paper uses a matched double difference approach to examine the relationship between legal status and firm level outcomes in micro small and medium manufacturing enterprises smes in vietnam controlling for determining factors and observable time variant factors that may simultaneously influence the decision to formalize and subsequent firm performance we find evidence that becoming officially registered leads to an increase in profits and investments and a decrease in the use of casual labor improved contract conditions for workers thus we conclude that formalizing is beneficial both to firms and the workers in these firms

loan guarantee schemes in the uk the natural experiment of the enterprise finance guarantee and the 5 year rule loan guarantee schemes have existed since 1953 in the us and are widely used throughout the world to provide financial support to smaller firms by guaranteeing loans from commercial banks the uk government has been an active supporter of loan guarantees since 1981 and has a long track record of modifying its scheme to reflect changing market conditions and the financing needs of its sme sector arguably the two most significant changes occurred in 2008 when the 5 year rule on eligibility was removed and in 2009 when the long standing small firms loan guarantee scheme was replaced by the enterprise finance guarantee scheme we treat the removal of the 5 year rule as a natural policy experiment and empirically question whether on economic grounds this was a sensible policy our findings suggest that the 5 year rule was a better policy choice with regard to employment but had no impact on sales growth

informality and credit constraints evidence from sub saharan african mses abstractthe attributes of micro and small enterprises mses influencing access to credit in particular the level and role of firm informality are analysed in the article the puzzle is the push for mses to join the formal sector and the tug to avoid the extra burden it places on the firm it is important to know more clearly what forces are at work and the sources of the causal effects this study uses data from the world bank enterprise surveys for five low income countries lics in sub saharan africa the method is empirical and as we find informality to be endogenous to credit constraints an instrumental variable approach is estimated further to address the possibility of reverse causality an instrument for the informality variable is required not registered with inland revenue tax office is the chosen instrument variable the findings reveal that as the probability of a firm operating in the formal sector increases there is greater access to external credit the causality relationships are

the intra firm diffusion of new process technologies the study of intra firm diffusion has largely been neglected and the limited extant literature overwhelmingly relies upon uncertainty reduction via information spreading or epidemic learning as the main driver in this paper an alternative approach is taken whereby the intra firm diffusion of new process technologies reflects the profitability of new technology adoption as proxied by firm characteristics the approach is tested using data relating to the diffusion of computer numerically controlled machine tools within firms in the uk engineering and metalworking sectors the empirical analysis does not reject the hypothesis that profitability considerations are important with a number of firm characteristics being isolated as of special relevance including firm size and the use of complementary technologies and managerial techniques however there is little support for the traditional epidemic effect

is the small firms loan guarantee scheme hazardous for banks or helpful to small business loan guarantee schemes are an integral part of sme policy in both developed and developing countries yet little has been done to evaluate such programmes particularly in terms of their ability to correct for capital market imperfections this paper uses individual loan data from some 42 000 uk sflgs backed debt contracts to empirically test the default specification outlined in the seminal credit rationing paper of stiglitz and weiss 1981 the results show that default failure does increase with the banks cost of capital but not with the government premium in addition default appears to be determined by a whole host of other factors not typically considered in the credit rationing literature

inflation expectations as a policy tool abstract we assess the prospects for central banks using inflation expectations as a policy tool for stabilization purposes we review recent work on how expectations of agents are formed and how they affect their economic decisions empirical evidence suggests that inflation expectations of households and firms affect their actions but the underlying mechanisms remain unclear especially for firms two additional limitations prevent policy makers from being able to actively manage inflation expectations first available surveys of firms expectations are systematically deficient which can only be addressed through the creation of large nationally representative surveys of firms second neither households nor firms expectations respond much to monetary policy announcements in low inflation environments we provide suggestions for how monetary policy makers could pierce this veil of inattention through new communication strategies as well as the potential pitfalls to trying to do so

the provision of incentives in firms i ncentives are the essence of economics despite many wide ranging claims about their supposed importance there has been little empirical assessment of incentive provision for workers the purpose of this paper is to critically overview existing work on the provision of incentives since the interests of workers and their employers are not always aligned a large theoretical literature has emphasized how firms design compensation contracts to induce employees to operate in the firm s interest this literature has reached into many areas of compensation and has pointed to a multitude of different mechanisms that can be used to induce workers to act in the interests of their employers these include piece rates options discretionary bonuses promotions profit sharing efficiency wages deferred compensation and so on my objective here is to evaluate this literature in the light of a growing empirical literature on compensation where possible i will address the literature from two perspectives first an underlying assumption of this literature is that individuals respond to contracts that reward performance accordingly i consider whether agents behave in this way and whether these responses are always in the firm s interest second i address whether firms write contracts with these responses in mind in other words do contracts look like the predictions of the theory incentives are provided to workers

what can survey forecasts tell us about information rigidities a lot we derive common and conflicting predictions from models in which agents face information constraints and then assess their validity using surveys of consumers firms central bankers and professional forecasters we document that mean forecasts fail to completely adjust on impact to shocks leading to statistically and economically significant deviations from the null of full information the dynamics of forecast errors after shocks are consistent with the predictions of models with information rigidities the conditional responses of forecast errors and disagreement among agents can also be used to differentiate between some of the most prominent models of information rigidities

the suspension of borrowing an implicit penalty for loan default under imperfect information abstracta credit seeker may be suspended from borrowing for a period of time due to a previous default such suspension is widely used in bank lending through credit check our work analyses the effects of suspension on the investment choice of borrowers under uncertainty and on the lending policy of banks facing asymmetric information we show that suspension should be tightened at low loan rates but loosened otherwise to improve the repayment performance of borrowers we also show that although credit rationing may not be completely removed due to imperfect information the excess demand for credit or transitive waiting in the market can actually be attenuated by such efficient use of suspension our theoretical predictions are consistent with observed cyclical patterns of changes in lendingrates and suspension severity

informal sector the credit market channel abstract we build a model of firms choice between formality and informality complying with costly registration procedures allows the firms to benefit from key public goods enforcement of property rights and contracts that make the participation in the formal credit market possible in a moral hazard framework with credit rationing their decision is shaped by the interaction between the cost of entry into formality and the relative efficiency of formal versus informal credit mechanisms and their related institutional arrangements the model is consistent with existing stylized facts on the determinants of informality

a dynamic analysis of the adoption of a new technology the case of optical scanners two p roportional hazard models are used to investigate the differingeffects of marke t structure variables on the conditional probabilityof a firm initially adoptin g the new technology of optical scanners as the innovation spreads through the f ood store industry during the early stage leading firms with large average sto re size which are not members of chains and which operate in less concentrated m arkets with higher incomes and wage rates tend to adopt scanners sooner later on differences in seller concentration market share and size become less impo rtant as other firms follow prior adoptions copyright 1987 by mit press

interdependences in the intrafirm diffusion of technological innovations confronting the rational and social accounts of diffusion this article investigates the intrafirm diffusion of technological innovations and the interdependences that exist among rival firms in this process previous research has offered two potential explanations for these interdependences social accounts in which they result from institutional pressures and rational accounts in which firms are interdependent as a result of how adoption by rivals affects expectations about the profitability of the technology the article offers two contributions first we propose a competitive interaction mechanism that is consistent with the fundamentals of rational accounts of diffusion second the empirical analysis shows the dominance of the proposed rational mechanism over social accounts of innovation diffusion in the generation of interdependences in the process of intrafirm diffusion

financing patterns around the world are small firms different using a firm level survey database covering 48 countries we investigate how financial and institutional development affects financing of large and small firms our database is not limited to large firms but includes small and medium size firms and data on a broad spectrum of financing sources including leasing supplier development and informal finance small firms and firms in countries with poor institutions use less external finance especially bank finance protection of property rights increases external financing of small firms significantly more than of large firms mainly due to its effect on bank finance small firms do not use disproportionately more leasing or trade finance compared with larger firms so these financing sources do not compensate for lower access to bank financing of small firms we also find that larger firms more easily expand external financing when they are constrained than small firms finally we find suggestive evidence that the pecking order holds across countries

market segmentation and the diffusion of quality enhancing innovations the case of downhill skiing we report econometric results concerning the diffusion of detachable chairlifts in the united states that provide the first empirical evidence that the adoption of a technological innovation by a firm decreases the likelihood that a local competitor will also adopt it we model the effect that an innovation in service speed has on a f s incentive to differentiate the quality of its service from that of its competitors in our model the incentive to adopt is negatively related to the number of competitors who have already adopted our empirical results support this hypothesis

rival precedence and the dynamics of technology adoption an empirical analysis this study employs information on the adoption of automatic teller machines by banking firms to examine the nature of firm reactions to rival precedence in the adoption process using a failure time estimation procedure it is found that the ado ption of this innovation by rivals increases the conditional probabil ity that a decision to adopt will be made the effect of spillovers f rom technology adoption and the interaction of market concentration a nd rival precedence are also investigated finally the study shows w ith an example how the estimation procedure may be used to test the u nderpinnings of diffusion processes copyright 1987 by the review of economic studies limited

mechanism experiments and policy evaluations randomized controlled trials are increasingly used to evaluate policies how can we make these experiments as useful as possible for policy purposes we argue greater use should be made of experiments that identify the behavioral mechanisms that are central to clearly specified policy questions what we call mechanism experiments these types of experiments can be of great policy value even if the intervention that is tested or its setting does not correspond exactly to any realistic policy option

time to implement and aggregate fluctuations in this paper we slightly modify the canonical rbc model by adding an implementation lag in the technology to reproduce the fact that consumption is a leading indicator of output indeed we assume that agents have today some information on the realization of the technology shock that will occur tomorrow today inventions are known and give information on the innovations which will be implemented tomorrow the model is estimated and tested on us data by a simulated method of moments using some suitable reconstructed data that are compatible with that model the results are in favor of this implementation lag hypothesis the model is not rejected by us post war data

disagreement a la taylor evidence from survey microdata there is a growing interest in studying the disagreement of economic agents most studies however focus on the disagreement regarding one specific variable hereby neglecting that disagreement may be comoving with disagreement on other variables in this paper we explore to which extent disagreement regarding the interest rate is driven by disagreement on inflation and on unemployment this relationship can be motivated by the existence of the taylor rule using micro survey data for both professional forecasters and consumers we provide evidence that disagreement on the future interest rate is mainly driven by disagreement on inflation exploring further determinants we confirm that central bank transparency as well as news on money and credit conditions significantly influence disagreement

clustering in n player preemption games we study a complete information preemption game in continuous time a finite number of firms decide when to make an irreversible observable investment upon investment a firm receives flow profits which decrease in the number of firms that have invested the cost of investment declines over time exogenously we characterize the subgame perfect equilibrium outcome which is unique up to a permutation of players when the preemption race among late investors is sufficiently intense the preemption incentive for earlier investors disappears and two or more investments occur at the same time we identify a sufficient condition in terms of model parameters clustering of investments occurs if the flow profits from consecutive investments are sufficiently close this shows how clustering can occur in the absence of coordination failures informational spillovers or positive payoff externalities

firms asset holdings and inflation expectations abstract this paper investigates the relationship between firms inflation expectations and their holdings of liquid assets we implement a new quantitative survey of firms expectations about inflation in new zealand we find that firms that hold more shares of liquid assets systematically report lower inflation expectations moreover we implement an experiment by providing firms new exogenous information about recent inflation dynamics this experiment allows us to assess how firms respond to new information in terms of belief revisions and firm level decisions

household informedness and long run inflation expectations experimental evidence this article uses an experiment embedded in a survey to analyze the response of consumers long run inflation expectations to information about the federal reserve s inflation target and past inflation on average respondents revise forecasts toward the 2 target with either information treatment forecast uncertainty and heterogeneity decline with the treatments but remain substantial since the information in the treatments is publicly available these findings are consistent with models of imperfect information in which agents do not fully and continually update their information sets or incorporate all available information into their expectations response to treatments varies with prior informedness and with demographic characteristics

intrafirm diffusion of new technologies an empirical application research on the diffusion of new technologies has centred on the study of the interfirm rate of diffusion paying much less attention to intrafirm aspects this paper attempts to overcome this gap in the literature by analysing the factors that influence the speed with which a new technology the atm is fully adopted the data over which the hypotheses are tested belongs to the spanish savings banks market the results show that the rate of intrafirm diffusion is explained by innovation firm and market characteristics in testing our hypotheses we make use of both traditional methods and survival analysis techniques

some evidence on the empirical significance of credit rationing this paper examines the credit rationing debate using detailed contract information on over one million commercial bank loans from 1977 to 1988 while commercial loan rates are sticky consistent with rationing this stickiness varies with loan contract terms in ways that are not predicted by equilibrium credit rationing theory in addition the proportion of new loans issued under commitment does not increase significantly when credit markets are tight despite the fact that borrowers without commitments can be rationed whereas commitment borrowers are contractually insulated from rationing overall the data suggest that equilibrium rationing is not a significant macroeconomic phenomenon

are negative supply shocks expansionary at the zero lower bound the standard new keynesian model predicts that economies behave differently at the zero lower bound completely wasteful government spending or forward guidance is very stimulative and capital des

optimal sticky prices under rational inattention this paper presents a model in which price setting firms decide what to pay attention to subject to a constraint on information flow when idiosyncratic conditions are more variable or more important than aggregate conditions firms pay more attention to idiosyncratic conditions than to aggregate conditions when we calibrate the model to match the large average absolute size of price changes observed in micro data prices react fast and by large amounts to idiosyncratic shocks but only slowly and by small amounts to nominal shocks nominal shocks have strong and persistent real effects we use the model to investigate how the optimal allocation of attention and the dynamics of prices depend on the firms environment jel e 3 e5 d8

implications of rational inattention abstract a constraint that actions can depend on observations only through a communication channel with finite shannon capacity is shown to be able to play a role very similar to that of a signal extraction problem or an adjustment cost in standard control problems the resulting theory looks enough like familiar dynamic rational expectations theories to suggest that it might be useful and practical while the implications for policy are different enough to be interesting