spatial search migration and regional unemployment the dominant explanation of spatial unemployment in the literature assumes that workers must live in an area in order to be able to access job offers this gives rise to compensating variations in local wages and unemployment however for many occupations search is clearly conducted over longer distances from a home base in the model presented in this paper migration and unemployment are analysed both when the optimal search field is local as in the traditional model and when search is conducted over longer distances i compare equilibria in these two regimes and discuss the implications for regional policy

simple nonparametric tests of technological change theory and application to u s agriculture several nonparametric tests of technological change are proposed conditional on alternative maintained behavioral assumptions the tests are simple as they require verification of axioms via binary comparisons that are analogous to those of the revealed preference theory our model allows a broad interpretation of technological changes yet trivial rationalization of the data with either profit maximization or cost minimization behavior is excluded the tests are applied to study the u s aggregate agricultural data supporting the hypotheses of rankable and neutral technological variations

a natural rate model of frictional and long term unemployment a simple labor market with spatial separation and markov production shocks is presented in the stationary equilibrium some workers are frictionally unemployed and others are long term unemployed the amounts of frictional and long term unemployment at each location depend on its recent history of productivity shocks producing a local hysteresis effect changes in the parameters affect the equilibrium aggregate amounts of frictional and long term unemployment differently in particular economies with larger moving costs will have more long term and total unemployment but less frictional unemployment this finding is broadly consistent with recently reported stylized facts

who benefits from local job growth migrants or the original residents bartik t j 1993 who benefits from local job growth migrants or the original residents reg studies 27 297 311 this paper surveys research on whether the new jobs resulting from growth in a local economy e g a metropolitan area go to inmigrants or the original local residents the empirical evidence suggests that around one quarter of the new jobs from local growth increases the labour force participation rates of local residents in the long run these long run effects may occur because local growth provides residents with valuable employment experience research also suggests that minorities benefit most from growth and that higher wage industries provide greater employment benefits for local residents bartik t j 1993 qui est ce qui beneficie de la croissance d emploi locale les migrants ou la population autochtone reg studies 27 297 311 cet article etudie la recherche effectuee dans le but d evaluer si les nouveaux emplois dus a la croissance d une economic locale par exemple une

local market and national components in house price appreciation abstract we analyze real home price appreciation using a long time series 1971 1989 and large cross section 56 metro areas our findings yield important new insights into two outstanding issues in real estate finance and economics the first deals with the implications for investment opportunities in housing across metro areas a striking result is that we cannot reject the null hypothesis of equal appreciation rates across locales a priori the results are suggestive of equal expected appreciation across the different local markets however it is noteworthy that we find significant serial correlation in some local appreciation series this is consistent with previous findings by case and shiller 6 and suggests that prescient market timers might have been able to make money in selective markets we then consider the potential implications of equal appreciation rates across cities for housing market equilibrium in light of the fact that price levels do materially differ across metro areas we argue that equal real appreciation rates starting from different price levels imply increasingly divergent prices of local traits in terms of foregone consumption without special assumptions with respect to income and productivity differentials across locations or to local trait income elasticities of demand the appreciation rates in high housing price level areas ultimately have to fall below those in low price level areas preliminary evidence indicates that higher priced areas tend to have significantly lower appreciation rates controlling for local fixed effects and a common time varying effect

the effects of military spending on economic activity evidence from state procurement spending the authors use state data from the period 1963 94 to estimate the response of employment growth to military procurement spending the state year panel provides greater variation in both variables than aggregate data there are two main findings first military procurement spending does explain a statistically significant degree of the variation in employment growth across states even in the presence of fixed effects for time and state and other controls second the authors find evidence in support of a nonlinear relationship between procurement spending and employment growth in particular large adverse state procurement shocks have proportionately larger effects on state employment growth rates copyright 1997 by ohio state university press

time series dynamics of us state unemployment rates this paper examines the time series properties of state and national unemployment rates based upon unit root variance ratio and cointegration tests as well as granger causality and error correction model results several important conclusions can be made first forecasting models that include only levels of unemployment rates may produce spurious regression results second in the vast majority of cases there is no long run co movement between the aggregate us unemployment rate and individual state unemployment rates third models that are specified in first differences generally yield reliable insights into state national unemployment relationships

regional disparities in the unemployment rate the role of the wage setting mechanism in spain 1987 92 bande r fernandez m and montuenga v m 2007 regional disparities in the unemployment rate the role of the wage setting mechanism in spain 1987 92 regional studies 41 the aim of this paper is to show how regional unemployment disparities in spain widen during economic upturns and to provide an explanation of this behaviour the analysis is based on the study of the wage setting mechanism that allows an estimation of the responses of wages to both labour productivity and the general situation of the labour market and an assessment of their impact on the evolution of regional unemployment the results of this estimation at the regional level with manufacturing data confirm the existence of marked differences between industries and between regions these responses these differences can be interpreted as a distinctive wage setting mechanism across industries and regions which may explain the evolution of unemployment rates within the regional labour markets bande r fernandez m et montuenga v

bureaucratic behavior in the local public sector a revealed preference approach public sector bureaucratic utility is typically assumed to be a function ofbudget size or government employment although intuitively appealing thereare no definitive direct tests of the assumption to fill this gap thispaper exploits data that isolate resource allocation decisions made by localpublic sector bureaucrats we use revealed preference theory to find thatthe bureaucracy behaves as if bureaucratic utility is an increasingfunction of employment across government functions and public spending providing direct evidence justifying the popular assumption in theoreticalmodels of government behavior

habit formation interdependent preferences and demographic effects in the almost ideal demand system the authors model myopic habit formation interdependence of preferences among consumers and demographic effects as taste shifters in a micro consumer demand model of the almost ideal demand variety the model is estimated for dutch micro data the authors investigate the dynamic properties of the model and find that it behaves very differently from models without interdependence of preferences the implications for micro macro modeling are discussed copyright 1991 by royal economic society

transitory shock or structural shift the impact of the early 1980s recession on british regional unemployment this paper examines the impact of the early 1980s recession on regional unemployment in britain more specifically it seeks to evaluate the hypothesis that this recessionary shock was so severe that it caused an upward structural shift in the underlying mean unemployment rates of the regions this proposition is analysed using dickey fuller tests for difference versus trend stationarity and the augmented structural shift and trend break time series models developed by perron the results suggest that the apparent stochastic non stationarity in regional unemployment over the period 1965 95 is in fact due to an upward structural shift in regional mean unemployment rates in 1980 furthermore the nature of this shift appears to have differed as between the northern and southern regions of the country

the new pattern of regional unemployment causes and policy significance in common with most oecd countries unemployment in britain has differed significantly between regions but the persistence of relative regional unemployment rates in britain has been until recently particularly striking however during the i990 93 recession the relative regional unemployment pattern changed significantly for the first time in seventy years our primary purpose here is to understand these recent changes and to examine what might be learned about the contribution of economic policies to the amelioration of both regional unemployment rate differentials and the amplitude of regional unemployment cycles finally we ask whether there are any policy lessons to be drawn from the recent cycles in regional unemployment patterns which might provide insight into the amplitude of macro economic cycles

do new york dairy farmers maximize profits or minimize costs the weak axiom of profit maximization and weak axiom of cost minimization were used to determine whether each of forty nine new york dairy farms displayed behavior consistent with profit maximization or cost minimization these were tested for each farm across eleven years of data correcting for technological change using previously estimated nonparametric malmquist productivity indices the results indicate that some were moderately successful in maximizing profits but more came closer to minimizing costs over half of the observations were within 10 of minimum costs

the silence of the lambdas a test of the almost ideal and rotterdam models during the past decade the linear approximate la almost ideal demand system and the rotterdam model have been adopted by agricultural economists as the demand systems of choice in most applications the apparent explanation is that the two models are both second order locally flexible and compatible with demand theory they have identical data requirements and are equally parsimonious with respect to parameters and both are linear in the parameters while the two models are thus equally attractive in most respects and indeed appear very similar in structure they lead to different results in some applications this article develops a test of each against the other in an illustrative application to u s meat demand the almost ideal model is rejected while the rotterdam model is not

economies of scale and input substitution in public libraries abstract a translog cost function is applied to 1988 data for 194 indiana public libraries to measure economies of scale and input substitution elasticities book circulation measures library output and costs include noncapital expenditures scale economies exist for libraries with circulations up to 55 000 per year larger libraries exhibit constant returns to scale labor books and supplies services are all substitutes with inelastic own price and cross price elasticities

employment unemployment and demand shifts in local labor markets this paper analyzes the effects of demand shifts within and between local labor markets on unemployment and employment outcomes observed in those markets the demand shifts are calculated from sales growth data at the firm and industry levels the results show that in general employment and wage adjustments by firms are primarily driven by shifts in labor demand demand shifts between local areas account for large fractions of the observed variation in unemployment and employment rate levels and changes across areas within area shifts cause much smaller and insignificant amounts of unemployment and only if they are between industry copyright 1991 by mit press

nonparametric analysis of technical pure technical and scale efficiencies for food crop production in east java indonesia abstract nonparametric analysis of technical efficiency for irrigated farms in the madiun regency in the west central part of east java indonesia is conducted using linear programming techniques this procedure allows the relative technical efficiency for each farm to be determined and for inefficiencies to be decomposed into pure technical inefficiency and scale inefficiency and does not require restrictions or assumptions regarding functional form to be placed on the data farmers in madiun generally are efficient relative to each other farmers operating inefficiently do so more often because of scale inefficiencies rather than pure technical inefficiencies a majority of the farms operate in the region of decreasing returns to scale rather than increasing returns to scale farmer age the level of diversification of cropping activities and high school education were found to be related to technical efficiency in the rainy season under irrigated conditions other socioeconomic factors were not statistically significant the results imply that inefficient farms use excessive levels of inputs particularly nitrogen fertilizer this is perhaps due to the lingering effects of past input subsidization policies particularly of fertilizers in indonesia or to risk reducing behavior the results also imply that current government policies to encourage diversification of cropping practices in java may lead to greater technical inefficiencies in production in addition extension education targeted to younger farmers with low levels of formal education would improve efficiency

what drives unemployment disparities in european regions a dynamic spatial panel approach abstractwhat drives unemployment disparities in european regions a dynamic spatial panel approach regional studies this study analyzes unemployment differentials in european regions during the period 2000 11 to that end a theoretical model with substantive spatial interactions among regions is developed the solution implies a dynamic spatial durbin model specification including regional and institutional level factors as explanatory variables in conjunction with dynamic spatial panel estimates relative importance metrics are used to quantify the effect of regional disequilibrium equilibrium and national level factors relative importance analysis suggests that during the pre crisis period unemployment disparities were mainly driven by regional level equilibrium factors nevertheless labour market institutions are of major importance to explain increasing disparities during 2009 11

reconciling the wage curve and the phillips curve the wage curve is the negative relationship that links wage levels to the unemployment rate it fits accurately with modern non competitive labour market models but goes against a phillips curve modelling because the latter ties wage growth to the unemployment rate in this article we present a comprehensive review of these non competitive models highlighting recent contributions that try to eliminate the possible gap that exists between the concepts of the wage curve on the one hand and the phillips curve on the other copyright blackwell publishers ltd 2005

water conservation policy analysis an interregional multi output primal dual optimization approach an interregional multi output normalized restricted equilibrium model of field crop agriculture is estimated within the context of a multistage programming based system estimation procedure implicit total economic cost functions endogenize behavioral opportunity adjustment costs of fixed and allocatable land and water resources crop specific marshallian water demand elasticities are estimated for restricted and unrestricted groundwater substitution environments and decomposed by water source elasticities are inelastic but water price policy reform can be an effective water conservation policy tool when groundwater use is unrestricted when groundwater use is restricted effective conservation policy requires more dramatic water price policy reform

on nonparametric supply response analysis in this paper we explore the usefulness of nonparametric methods in the investigation of production behavior and the estimation of price elasticities of output supply and input demand functions the approach can handle the situation where some data points are not consistent with production theory the method is illustrated by estimating supply demand elasticities of outputs and inputs in u s agriculture

the regional dimension of collective wage bargaining the case of belgium rusinek m and tojerow i the regional dimension of collective wage bargaining the case of belgium regional studies the potential failure of national industry agreements to take into account productivity levels in the least productive regions has been considered as one of the causes of regional unemployment in european countries this paper investigates the role of the collective bargaining structure in the relationship between regional wage and productivity differentials using a rich belgian linked employer employee dataset it is found that the more an industry is decentralized in terms of wage setting the more regional differences in productivity are reflected in wages it is concluded that the current belgian wage setting system already includes mechanisms that allow regional productivity to be taken into account

estimating ex ante cost functions for stochastic technologies this paper revisits the problem of estimating ex ante cost functions previously studied by pope and just in 1996 as well as moschini in 2001 an ex ante cost function that generalizes their ex ante cost functions is introduced and an econometric procedure for estimating a flexible approximation to it is developed that generalized cost function is economically relevant not only for the pope and just 1996 choice setting but for general producer risk preferences general stochastic technologies and general forms of price uncertainty an econometric strategy for estimating the resulting cost structure that adapts moschini s 2001 full information approach is developed followed by an econometric application to u s agriculture

nonparametric tests for monopsonistic market power exertion measurement of market power exerted in imperfectly competitive markets has received considerable attention in recent years this literature has become known as the new empirical industrial organization neio bresnahan 1989 provides an extensive review of these studies most often empirical work relies on estimating monopoly market power exertion from first order profit maximization conditions using aggregate industry data estimates of market power exertion depend on the functional forms selected for aggregate supply and demand importantly econometric identification of the market power parameter estimated from the first order conditions depends critically on second order curvature properties of the functions selected bresnahan 1982 lau little is known about the effects of model misspecification on estimated market power parameters while most of the neio market power literature focuses on monopoly power it is likely that firms with potential market power in agricultural and natural resource markets more of

endogenous regional agricultural production technologies technical relationships between six productive factors for ten agricultural produvction regions in the continental united states are examined the applied methodology provides a departure from conventional production methodologies contained in the literature by allowing aggregate technical relationships to be endogenized within the economic system

profit margins and the business cycle evidence from uk manufacturing firms this paper presents some empirical models of profitability using panel data covering 709 large u k companies ove r the 1970s and 1980s focusing specifically on the role of aggregate demand shocks in shaping firm level profitability in basic regressi ons and in quite complex econometric models the results suggest that firm level profit margins fell heavily during the deep manufacturing recession of the early 1980s and as such are consistent with model s predicting the procyclical nature of profit margins this result hol ds across different product groups producer goods consumer durables a nd nondurables though the timing of the impact of aggregate shocks appears to differ copyright 1993 by blackwell publishing ltd

nash equilibrium with mark up pricing oligopolists abstract if business managers formulate strategies in terms of mark ups then it is natural to think they will think of their rivals actions in these terms for a market characterized by constant elasticity of demand and supply the mark up equilibrium is derived and compared with the traditional monopoly cournot and perfectly competitive equilibria we also compute the revenue as strategy equilibria

local commercial and industrial rental trends and property market constraints the paper assesses the differential impact of property market constraints on the long run rental trends in each of the commercial and industrial property market sectors the perceived view that supply constraints are very inelastic in the retail sector less so for offices and elastic for industrial properties is reconsidered a series of hypotheses are derived and tested by an analysis of variance technique which decomposes rental change into local and national components the paper concludes that changes in the pattern of spatial activity and specific property market processes have resculptured the nature of supply constraints the result is that the spectrum of supply elasticities has narrowed

the wage local unemployment relationship in a highly regulated labour market greece livanos i the wage local unemployment relationship in a highly regulated labour market greece regional studies using data obtained from 80 000 employees this paper examines the relationship between individual wages and regional unemployment in greece the findings highlight the dynamics of the local labour markets in a case such as greece where the organisation for economic co operation and development oecd claims that wage flexibility is limited this study does not find evidence that wages in greece are rigid but finds a wage curve elasticity of close to 0 1 which corresponds to evidence from many counties interestingly graduates are found to be the most responsive group of workers to the behaviour of local labour markets livanos i le rapport salaire chomage local dans un marche du travail extremement reglemente la grece regional studies a partir des donnees provenant de 80 000 salaries cet article cherche a examiner le rapport entre les salaires des individus et le chomage regional

farm level nonparametric analysis of cost minimization and profit maximization behavior abstract this study investigates non parametrically the optimizing behavior of a sample of 289 kansas farms under profit maximization and cost minimization hypotheses the study uses both deterministic and stochastic non parametric tests the deterministic results do not support strict adherence to either optimization hypothesis the stochastic tests suggest that all 289 farms fail the profit maximization hypothesis whereas 171 farms failed the cost minimization hypothesis allowing for non regressive technical change does not alter the basic results 276 farms violate the profit maximization hypothesis and 138 violate the cost minimization hypothesis the evidence against cost minimization behavior seems to be far less substantial than that against profit maximization behavior

what drives migration moves to urban areas in spain evidence from the great recession during the great recession international emigration skyrocketed while internal migration strongly declined however when the focus is on migration to the larger urban areas in spain an increase i

non parametric tests of consumer behaviour the neoclassical model of consumer behaviour postulates that a consumer s choice behaviour can be described as deriving from utility maximization subject to a budget constraint one is then naturally led to ask what this model implies about observed behaviour this question has been addressed from two quite distinct approaches the first approach originating in the work of slutsky 1915 and antonelli 1886 derives necessary and sufficient conditions involving the derivatives of the demand functions the second approach originating in the work of samuelson 1938 1947 1948 derives algebraic conditions on the demand functions implied by maximizing behaviour

variations on invariance or some unpleasant nonparametric arithmetic the nonparametric approach to production or demand analysis involves testing data for compatibility with restrictions from theory this avoids reliance on particular functional forms when the data are not consistent with utility or profit maximization adjustments in the data using linear programming can restore consistency such adjustments have been interpreted as taste changes or measures of technical change and technical change bias this paper describes nonparametric approaches and shows that the programming methods that have been used yield results that are not invariant to the scaling of prices and quantities a solution is proposed that solves the invariance problem

two views of the geographic distribution of unemployment this paper investigates the extent to which equilibrium and disequilibrium explanations can account for unemployment rate differentials between cities it shows that shocks that disturb the steady state relationship among the unemployment rates of metropolitan areas tend to be eliminated by mobility within a single year it also shows that high unemployment areas tend to be those with attractive climates and amenities high wages and high unemployment insurance it argues that the main effect of government programs that create jobs in high unemployment areas will be to lure additional job seekers to those areas

nonparametric tests of cost minimizing behavior a study of indian farms we extend existing nonparametric methods of analyzing production efficiency to allow some inputs to be quasi fixed varian s weak axiom of cost minimization is modified to derive the weak axiom of variable cost minimization the methodology is applied to farm level data from west bengal india which are analyzed for consistency with cost minimizing behavior there is strong evidence against overall cost minimization a result that cannot be rationalized in terms of production uncertainty and risk aversion however violation of either technical efficiency or of variable cost minimization is much less serious this suggests that failure of cost minimization is principally due to imperfections in the markets for capital and land

do firms pay efficiency wages evidence with data at the firm level this study tests the efficiency wage hypothesis by estimating wage and quit equations with data from the employment opportunity pilot project survey of firms an efficiency wage model is derived that predicts effects of turnover costs and unemployment on wages as functions of first and second derivatives from the quit equation the model is tested by examining the relationships between the coefficients in the wage and quit equations the results are generally favorable to efficiency wage theory other important findings are that firm characteristics raising workers productivity tend to raise wages and that a rise in turnover costs reduces quits

supply demand and technology in a multiproduct industry texas field crops the purpose of this paper is to examine the structure of agricultural production for six texas field crops cotton grain sorghum wheat corn rice and hay which account for nearly 95 of recent field crop value specific objectives are to a test the structure of technology to determine i if output and input utilization choices for individual products are independent of production decisions about other outputs and ii if products and or inputs can be consistently aggregated b estimate a coherent set of interrelated supply functions for the six commodities and input demand functions for fertilizer and hired labor because the empirical focus of this paper is specific to one state the results will be of limited value for interpreting specific production relationships elsewhere however the problem is of common interest in production agriculture and the techniques used demonstrate an important application of dual modeling

collusion with capacity constraints over the business cycle this paper investigates the efiect of capacity constraints on the sustainability of collusion in markets subject to cyclical demand uctuations in the absence of capacity constraints i e a limiting case of our model haltiwanger and harrington 1991 show that flrms flnd it more di cult to collude during periods of decreasing demand we flnd that this prediction can be overturned if flrms capacities are su ciently small capacity constraints imply that punishment proflts move procyclically so that periods of increasing demand may lead to lower losses from cheating even if collusive proflts are rising haltiwanger and harrington s main prediction remains valid for su ciently large capacities

simple econometrics of pesticide productivity this paper develops a multioutput generalization of the lichtenberg zilberman damage control technology the dual representation of the technology is shown to be conditionally additive in the price of abatement activities and other prices an econometric procedure for estimating the dual technology is developed and applied to an aggregate u s agricultural data set the conditionally additive nature of the model allows estimation of pest damage from the dual technology our estimates of aggregate u s pest damage are much lower than previous estimates

regional unemployment in poland rural urban contrasts unemployment continues to bedevil poland albeit with striking sub national differences which this article seeks to explain using random effects error component two stage estimation for the country s nuts 4 nomenclature des unites territoriales statistiques level powiats given the economy s peculiar configuration under communism with its large private agricultural sector emphasis is placed on rural urban differences while less densely populated areas do suffer higher unemployment rates the effect is moderated by hidden unemployment in farming on the other hand powiats that housed the ex state farms suffer a negative long term legacy other notable results include an evident positive impact of foreign capital on local labour market fortunes

a nonparametric analysis of the influence of research on agricultural productivity nonparametric productivity analysis is extended by modeling technical progress as a function of public and private research expenditures results indicate that 30 year lags are required to fully capture the effects of public research expenditures on u s agricultural productivity compared to public research private research has a stronger influence on farm productivity in the short term but a smaller influence in the longer term the internal rate of return is 0 28 for public research and 0 17 for private research

multimarket contact and collusive behavior traditional analyses of industrial behavior typically link the exercise of market power in an industry to internalfeatures such as demand conditions concentration and barriers to entry nevertheless some economists have remained concerned that external factors such as contact across markets may also play a significant role in determining the level of competitiveness in any particular industry in this article we examine the effect of multimarket contact on the degree of cooperation that firms can sustain in settings of repeated competition we isolate conditions under which multimarket contact facilitates collusion and show that these collusive gains are achieved through modes of behavior that have been identified in previous empirical studies of multimarketfirms

testing for consistent aggregation this paper designs workable empirical procedures for testing or imposing supply demand price aggregators only single equation methods are considered to shift the focus from any particular optimizing paradigm toward the necessities for correctly tabulating firm level supplies demands and aggregate supply demand both macro and micro level tests for consistent aggregation are developed and constructive rules for aggregation based upon empirically observed micro behavior are provided in tabular form empirical tests reveal no support for the aggregate price most commonly reported by usda the constructive rules are then used to develop a new wheat price index consistent with supply aggregation

success in maximizing profits and reasons for profit deviation on dairy farms the weak axiom of profit maximization wapm was used to test how successful each of 70 individual new york state dairy farms was in maximizing profits using nine years of data the netput vectors were corrected for technological change using nonparametric indices that do not require the assumption of profit maximization nor any functional form for the underlying technology these technology indices are consistent with the nonparametric assumptions used in the wapm tests the average negative wapm deviation over the 70 farms was 0 20 indicating that on average these farms could have selected available netput vectors that would have increased profits by 20 of total receipts a tobit regression showed that the available characteristics on these farms explained very little of the variability in their abilities to select the best netput vectors yet increased age and additional education increased the ability to select the best netput vector

a model of regional contraction and unemployment a two region economy is studied in which one region has a competitive labor market whereas the other has a congested labor market in which locating a job uses resources workers loosing jobs in the congested region choose between migration followed by an immediate job offer and searching in the congested region steady state decline of the labor force in the congested region is characterized together with equilibrium unemployment rates higher unemployment benefits may increase the rate of contraction of the congested market if the consequence for job matching outweighs that for migration conditional upon a given level of unemployment copyright 1992 by royal economic society

the effects of foreign direct investment on local communities abstract little evidence exists on the effects of foreign direct investment fdi on local communities in the united states despite evidence that u s communities actively bid against each other for fdi we use detailed county level panel data from south carolina across 5 year intervals from 1980 through 1995 to investigate the effect of foreign manufacturing plants on local labor markets and on the level and distribution of local government budgets we find that foreign investment raises local real wages much more than does domestic investment but lowers per capita county government expenditures and redistributes monies away from public school expenditures

optimal cartel equilibria with imperfect monitoring abstract there exist optimal symmetric equilibria in the green porter model 4 8 having an elementary intertemporal structure such an equilibrium is described entirely by two subsets of price space and two quantities the only production levels used by firms in any contingency the central technique employed in the analysis is the reduction of the repeated game to a family of static games

production economics worthwhile investment abstract agricultural production economics research is examined within a broad framework of scientific development and utilization recent findings in selected areas of the subdiscipline are examined and opportunities for further fruitful inquiry are identified a few stylized facts emerge from recent work and suggest the need for much careful hypothesis testing model exploration and empirical sensitivity analysis in the future

hysteresis in unemployment evidence from 48 u s states i introduction one central idea in macroeconomics is the equilibrium unemployment rate hypothesis 1 in many macroeconomic models which allow for some degree of price stickiness fluctuations in demand and supply may lead to deviations of the actual unemployment rate from its equilibrium value these deviations in turn trigger changes in the inflation rate there is nothing in the equilibrium unemployment rate literature which even vaguely suggests such a rate is constant indeed many studies have analyzed the factors which cause the equilibrium unemployment rate to change over time or across areas for example summers 1986 presents evidence of an increased normal u s unemployment rate since the mid 1960s and argues that this increase has in large part resulted from high and growing noncompetitive wage differentials barro 1988 addresses the issue of persistence of unemployment in various countries over a number of time periods and relates measures of persistence to variables that matter theoretically for the economy s speed of adjustment blanchard and summers 1986 1987 propose the so called hysteresis hypothesis of unemployment hysteresis is the term used to describe the long lasting influence of history on the natural rate a recession potentially has permanent effects if it changes attitudes and or characteristics of the unemployed and particularly the long term unemployed furthermore the latter may exert less pressure on the wage setting because they will become outsiders in the labor market the insiders union members or currently employed workers have much incentive to keep wages from falling 2 the hysteresis hypothesis of unemployment has important policy implications it suggests that high unemployment if left by itself may persist and continue to be a serious problem in the economy even in the long run this possibility leaves more room for active government policies to fight recessions and manage the economy the fact that the actual unemployment rate may not fluctuate around some natural rate suggests the possibility of nonstationarity in the unemployment series this relationship can be illustrated with a simple model from wyplosz 1987 or brunello 1990 consider the following phillips curve 1 mathematical expression omitted where p sub t is the current inflation rate e sub t i p sub t is the expected inflation rate of time t given information at time t 1 u sub t is the current unemployment rate mathematical expression omitted is the natural unemployment rate beta is the slope of the phillips curve and xi sub t is an error term the possibility of hysteresis arises when the natural rate is a function of past unemployment rates this can be expressed as follows 2 mathematical expression omitted where c and alpha are constants and zeta sub t is an error term substituting 2 into 1 yields 3 u sub t c alpha u sub t 1 epsilon sub t where epsilon sub t 1 beta e sub t 1 p sub t p sub t xi sub t zeta sub t hysteresis requires the parameter alpha in 3 to be equal to one 3 it implies that once disturbed the unemployment rate tends to wander around without returning to a mean value in this case the unemployment rate and also the natural rate contain a unit root in contrast when alpha is between zero and one the natural rate evolves towards its steady state level c 1 alpha and the weak version of the natural rate hypothesis holds as long as alpha is larger than zero there is persistence in unemployment rate in the sense that past unemployment affects the natural rate we however seek to test for the existence of hysteresis the extreme version of persistence finally when the parameter alpha equals zero the natural rate stays at a constant level c

the structure of u s agricultural technology 1910 78 this paper utilizes 1910 78 time series data and a single product aggregate translog profit function to measure the structure of u s agricultural technology duality relations are used to devise a multifactor measure of biased technical change a measure of nonhomotheticity is introduced which indicates the effects scale change has had on aggregate cost shares the empirical analysis finds that different nonhomothetic technologies characterized the prewar and postwar periods differing technical change biases are consistent with relative price trends during the two periods showing that the long run structure of u s agricultural technology has been consistent with the hayami ruttan induced innovation theory

conflicts between theory and practice in production economics nomic relationships allows multiple theoretical models to explain essentially the same behavior at the same time indirect measurement places great demands on data to test theory for example using parametric tests for profit maximization requires estimating second order curvature parameters to ascertain whether parameters exhibit certain properties it may be difficult to determine second order substitution effects using related price data which in practice are often highly collinear as technical demands placed on data for testing underlying theory increase conflicts between theory and empirical evidence should also be expected to rise

a nonparametric analysis of agricultural technology u s agricultural technology and technical change are analyzed nonparametrically under cost minimization and profit maximization based on annual data for 1948 83 various separability hypotheses concerning the aggregate production function for u s agriculture are investigated the proposed nonparametric approach also provides some insights into the nature of technical change

has the wage curve nullified the harris todaro model further us evidence abstract economists traditionally believed that regional unemployment rates and wages were positively related this notion has recently been attacked by proponents of the wage curve which suggests the exact opposite this paper attempts to replicate the wage curve using different us data

accounting for changes in tastes health concerns are thought by many to have shifted consumption away from red meats though econometric evidence is mixed testing for structural change is difficult especially when one time series is used for both estimating demand equations and testing their stability specification errors may suggest a shift where none has occurred using nonparametric demand analysis we find that meat consumption patterns in the united states and australia can be explained using only relative prices and expenditures only imposing particular functional forms can reverse the conclusion suggesting that specification errors in econometric demand studies can account for findings of taste changes

environmental productivity and kuznets curve in india abstract as a result of india s extremely rapid economic growth the scale and seriousness of environmental problems are no longer in doubt whether pollution abatement technologies are utilized more efficiently is crucial in the analysis of environmental management because it influences the cost of alternative production and pollution abatement technologies in this study we use state level industry data of sulfur dioxide nitrogen dioxide and suspended particular matter over the period 1991 2003 employing recently developed productivity measurement technique we show that overall environmental productivities decrease over time in india furthermore we analyze the determinants of environmental productivities and find environmental kuznets curve type relationship existences between environmental productivity and income panel analysis results show that the scale effect dominates over the technique effect therefore a combined effect of income on environmental productivity is negative

forecasting housing prices under different market segmentation assumptions three types of market segmentation strategies are available to estimate hedonic housing price models i e no segmentation segmentation by using statistical clustering methods and segmentation by using a priori information this research tests the hypothesis of tiebout theory that individual residential decision making is determined by equilibrium provision of local public goods in accord with the tastes and preferences of residents thereby sorting their housing locations into optimal sub markets forecasting accuracies of eight sub market segmentation strategies and two forecast combining methods are examined by using housing sales data from knox county tennessee usa the results provide empirical support for tiebout theory of optimal housing sub market location in that boundaries drawn using a priori information from local government jurisdictions school districts and expert opinions are more closely aligned with the equilibrium provision of local public goods than boundaries drawn by statistical cl

compensation of regional unemployment in housing markets why are regional unemployment differentials in europe so persistent if as the wage curve literature demonstrates there is no compensation in labour markets we hypothesize that workers in high unemployment regions are compensated in housing markets modelling regional unemployment differentials as a consequence of centralized wage bargaining we show that clearing of land markets may undo the incentive for workers to migrate to low unemployment regions in general equilibrium the compensating differentials hypothesis is tested on city level data for several countries controlling for variation in income and amenities housing is found to be about 3 percent less expensive on average in cities where unemployment is 10 percent up an analysis of housing demand survey data which takes account of housing heterogeneity yields a similar negative relationship the magnitude of the income effect generated by this compensating differential is consistent with a 0 10 wage curve elasticity these findings weaken the case for regional support programs

empirical dairy profits under fluctuating prices production theory suggests that average profits would be greater with more variation in prices if farmers correctly adjust use of inputs and outputs to changes in prices we provide an empirical nonparametric analysis of farmers profits under price changes over 12 years using an unbalanced panel of dairy farmers each year that a farm participated we have quantities of milk and other outputs and usage of 30 different inputs if that farmer participated in the survey the following year the profit that farmer would have earned that following year using the netput vector of the previous year and the price vector of the following year was calculated this passive profit was compared to the actual profit the farmer produced the following year of the 2371 observations 56 show netput vector changes which enhanced net profit implying that as a group these farmers were not generally able to correctly adjust inputs in response to price changes consistently logit regression failed to differentiate character

differences in state unemployment rates the role of labor and product market structural shifts state unemployment rates diverged dramatically in the 1980s differing unemployment rates across states are an important public policy concern because of equity concerns and the pure human consequences of higher unemployment moreover at the national level a greater dispersion in state and regional unemployment rates can increase the natural rate of unemployment and shift the phillips curve out because of an inefficient allocation of the labor force 3 38 one possible cause for the divergence in unemployment rates is national industrial restructuring u s industrial restructuring was suggested by lilien 26 as a cause for the rise in the national unemployment rate moreover national restructuring can have differential impacts across states because states can have dramatically different mixes of industries from each other one of the difficulties of national restructuring from a regional perspective is that it is difficult to avoid on the other hand if regional differences in unemployment are due to state idiosyncratic causes state and local public policy can potentially play a more active role for example the economic problems that plagued the northeast and california during the early 1990s have been typically attributed to national downsizing in the defense industries conversely economic problems in these states may have been driven by factors that are located within the state such as the collapse of their real estate markets

unemployment in regional labor markets using structural theories to understand local jobless rates in west virginia the author uses a range of structural labor market models to understand differing regional jobless rates in a state affected by pockets of structural unemployment four theories of regional structural unemployment are presented and their hypotheses are statistically evaluated using west virginia county panel data the author then presents case study evidence to compare these statistical results with the realities of the county labor markets both types of empirical evidence suggest that a segmented non market clearing model in which structural unemployment stems from queuing for above market clearing wages in both a high wage primary sector and a lower wage secondary sector can shed the most light on regional unemployment rates in west virginia

testing the stability of preferences a nonparametric approach a test for preference stability is developed that strengthens existing nonparametric procedures the test uses indifference curve convexity to restrict unobservable compensated consumption bundles adding up noninferiority and the slutsky equation are used to limit the range of these compensated consumption bundles a program is proposed that simultaneously measures the changes in consumption quantities satisfying the theoretical restrictions and the expenditure elasticities minimizing the required changes the program is applied to meat consumption data and is shown to be capable of detecting small changes in preference

the impact of cyclical demand movements on collusive behavior recent work by rotemberg and saloner 1986 investigates the effect of the business cycle on optimal collusive pricing by specifying that demand is subject to i i d shocks an implication of the i i d assumption is that firms expectations on future demand are unrelated to the current level of demand we put forth a model that allows for both the level of current demand and firms expectations on future demand to change over time thus it captures two important properties of the business cycle our analysis reveals that while the gain to deviating from a collusive agreement is greatest during booms firms find it most difficult to collude during recessions as the forgone profits from inducing a price war are relatively low an implication of this effect for pricing behavior is that at the same level of demand price is lower when demand is declining than when demand is rising consistent with previous theoretical work we find that firms price countercyclically for a range of values for the discount factor however numerical simulations reveal a greater tendency for firms to price countercyclically during recessions than during booms

the demand for food and beverages in norway abstract the demand for food and beverages is estimated within a three stage demand model the separability structure of the model is checked by nonparametric tests some generalized axiom of revealed preference garp violations are detected in one of the subsystems however they are removed by small adjustments in the quantities of fish and the violations are interpreted as results of measurement errors the almost ideal demand system is used in the static and a dynamic version the results of various specification and misspecification tests suggest that the static version performs poorly as compared with the dynamic version norwegian demand elasticities for disaggregate food commodities have rarely been estimated within a system framework so the results are of intrinsic interest the elasticities estimated by using the dynamic model are of the expected signs and reasonable magnitudes the values are stable over time for most commodities elasticities estimated within a subsystem are conditional on the goods included in that system and they may differ from the more policy relevant unconditional elasticities estimated within a system including all goods adjustment formulas are used to approximate the unconditional elasticities from the estimated conditional elasticities there are considerable differences between the numerical values of the conditional and unconditional elasticities for several of the foods the unconditional own price elasticities are in the interval 0 20 to 0 89 the own price elasticities for hot drinks and for milk are most inelastic the unconditional expenditure elasticities for food away from home fish soft drinks and alcoholic beverages are above one while the expenditure elasticity for hot drinks is about zero

understanding unemployment across california counties mark l rodini unemployment rates differ widely and persistently across counties this article examines equilibrium forces related to this geographic disparity with a focus on california we show that although seasonal variation in employment can account for some of the differences it cannot explain the total variation factors such as educational attainment age and gender appear to be strongly related to unemployment differences individuals living in higher unemployment areas also have a lower propensity to migrate because migration is usually considered to be the main equilibrating force this evidence helps further explain why unemployment rates across counties are persistently different jel j6 i introduction california has been one of the fastest growing states during the postwar era though it faced one of its most severe recessions in the early 1990s the state has rebounded strongly and projections are for continued growth underlying this strong aggregate growth however is substantial variation in economic performance at the county level one measure where this is most evident is in unemployment rates figure 1 shows average county level unemployment rates between 1985 and 1997 using data from the california employment development department the figure shows the wide distribution that exists ranging from a low of 3 7 in mann county to a high of 26 2 in imperial 1 this wide distribution is not unique to california and its existence often puzzles both the local business community and policy makers the unemployment differences shown in figure 1 are also highly persistent the rank correlation between the 1985 and 1997 california county level unemployment rates is 0 90 this suggests that during this period for a little over a decade the rank order of unemployment rates across counties did not change much counties with relatively high unemployment rates remained high data from the u s census shows that this pattern of persistence is not a recent phenomenon the rank correlation for unemployment rates across california counties between 1980 and 1970 is 0 85 and is 0 73 between 1970 and 1960 this high degree of persistence has been somewhat disheartening to those who had hoped that strong growth would trickle down and bring the high unemployment rate counties more in line with others this article examines potential factors that might help us understand the persistent differences in unemployment rates there is a large body of literature on the geographic variation in unemployment rates across space and time macroeconomic studies have generally focused attention on the impact of shocks on local labor markets and how these shocks affect local unemployment employment growth and wages as in topel 1986 blanchard and katz 1992 and martin 1997 micro studies such as da vanzo 1978 gabriel et al 1993 1995 and berger and blomquist 1992 have instead investigated how geographic variation in economic and social characteristics are related to labor market differentials examining especially demographic and industry differences along with the decision to migrate ultimately all of these studies have at their core the notion from classical economic theory that labor markets meaning wages and unemployment rates should equilibrate geographically arriving at a natural rate in the long run indeed the fact that geographic differences in unemployment rates exist and are persistent is considered to be an unexpected anomaly researchers such as marston 1985 and partridge and rickman 1997a 1997b hereafter cited as p r have pointed to a number of causes that have broadly been characterized as equilibrium and disequilibrium forces disequilibrium forces are those that affect shifts in local labor supply or demand equilibrium forces on the other hand are regional characteristics such as demographics industry structure or psychological attachment that result in each local labor market having its own wage and employment growth rate and natural rate of unemployment

tacit collusion in housing markets the case of santiago chile abstractin this article using a detailed micro database from santiago chile the potential existence of tacit collusion in housing markets is investigated in order to perform the test santiago s housing market is split into four different submarkets using hedonic price analysis and household s socioeconomics characteristics then using a gmm panel data model regressions are run for each submarket correlating industry s markups with the aggregate level of activity the main finding is that low and middle income submarkets present higher average markups and a pro cyclical behaviour this finding is consistent with a market where participants do not face capacity constraints and behave strategically to sustain tacit collusion during increasing demand periods

aggregation of data and profit maximization in mexican agriculture nonparametric support for two important hypotheses relevant to econometric model specification is examined results of various nonparametric tests for behavioural objective and aggregation level of mexican agricultural production data are reported the evidence does not refute the hypothesis that producers behave collectively as though they are a price taking profit maximizing firm the empirical results also support exhaustive aggregation of input categories aggregation possibilities among outputs are fewer and are highly sensitive to the rejection criterion