reaction or interaction spatial process identification in multi tiered government structures abstract this paper models horizontal and vertical fiscal externalities in a multi tiered structure of government and implements maximum likelihood and instrumental variables estimation techniques to identify the source of spatial dependence in english local government expenditures the results show that when vertical fiscal externalities among upper tier county authority and lower tier district authority expenditures are explicitly taken into account the estimated magnitude of inter district fiscal interactions is substantially reduced the observed positive spatial autocorrelation among district expenditures can consequently be attributed to a large extent to common reaction to county fiscal policies rather than to actual strategic interaction

on the decomposition property for a dynamic inventory rationing problem with multiple demand classes and backorder in this paper we study a dynamic inventory rationing problem of a single item with multiple demand classes and backorder demand classes are differentiated by their unit backlogging costs the corresponding dynamic programming problem is multidimensional and computationally challenging with a novel state transformation we find that the optimal policy can be described by a nested base stock policy in particular we can decompose the value function as the sum of single variable convex functions this property breaks the curse of dimensionality and significantly reduces computational effort in computing optimal policies our approach allows us to extend the results to systems with ordering exogenous supply priority upgrading

voter preferences and state regulation of smoking i introduction tobacco taxation and smoking restrictions are two areas of regulation for which states have maintained a high level of control relative to the federal government 1 given this flexibility states have established a wide range of restrictions on smoking in areas such as government workplaces restaurants bars shopping malls indoor arenas and hospitals 2 although most states restrict smoking in hospitals there is considerable variation among states in restrictions in other areas in the 1998 99 period of this study about two thirds of states restricted smoking in restaurants whereas only four states restricted smoking in bars what has led to variation in smoking restrictions across states in a democratic society one would expect voter preferences to play an instrumental role in determining which policies are enacted and which are not this article provides the first empirical exploration of whether state level smoking restrictions are consistent with preferences of the citizenry taking into account both voting behavior and the role of smoking status in influencing whether an individual votes specifically we examine whether voters preferences for smoking restrictions in restaurants bars malls indoor sporting events and hospitals are consistent with state level restrictions on smoking in each of these public areas 3 our research draws on public choice models of policy making by state and local governments voters preferences typically play a central role because voting affects legislators incentives to support regulations 4 public choice research also finds that nonvoter factors may influence state and local policy making 5 in the case of smoking regulations public health advocates or tobacco industry lobbyists might influence regulatory policies the specific building block of our analysis of state restrictions on smoking is information on individuals voting behavior which we link to their smoking status and preferences over smoking restrictions our analysis uses measures of political pressure that account for individual preferences as well as their voting behavior to examine the possible role of interest group pressures we also control for nonvoter influences on smoking regulation including the proportion of the state population who smoke measures of state ideology and size of the tobacco industry with the exception of smoking in bars there is majority support for smoking restrictions unsurprisingly smokers are less supportive of restrictions than are nonsmokers nonetheless even smokers demonstrate a high level of support for many restrictions smokers are also less likely to vote than are nonsmokers even after controlling for other demographic factors the lower voting rate diminishes voter opposition to antismoking regulation but is usually not critical in view of the substantial support that most smoking restrictions have among smokers the political pressure indices for restrictions on smoking in each public area are generally significantly related to the probability that a state restricts smoking in that public area the nonvoter factors such as the smoking rate in the state and tobacco s role in the state economy are rarely influential policy debates over the desirability of smoking restrictions emphasize possible health risks due to exposure to environmental tobacco smoke ets and effects on business profitability the primary argument for expanding smoking restrictions is to protect workers and customers from exposure to ets 6 as our results show voters are generally supportive of smoking restrictions in public areas which would thereby protect workers as well as themselves and other customers however there is a substantial controversy over the extent of health risks associated with exposure to ets the basis for the push by the u s occupational and safety health administration osha for increased smoking restrictions to protect workers is the highly controversial u

decentralization and intra country transfers in the great recession the case of the european union empirical evidence is found supporting the assignment of the redistribution function to the central government viewing the great recession or recessions in general as a shock it is found that a

joint management of capacity and inventory in make to stock production systems with multi class demand we evaluate the benefits of coordinating capacity and inventory decisions in a make to stock production environment we consider a firm that faces multi class demand and has additional capacity options that are temporary and randomly available we formulate the model as a markov decision process mdp and prove that a solution to the optimal joint control problem exists for several special cases we characterize the structure of the optimal policy for the general case however we show that the optimal policy is state dependent and in many instances non monotone and difficult to implement therefore we consider three pragmatic heuristic policies and assess their performance we show that the majority of the savings originate from the ability to dynamically adjust capacity and that a simple heuristic that can adjust production capacity based on workload fluctuation but uses a static production rationing policy can result in significant savings

testing the taxmimicking versus expenditure spill over hypotheses using english data spatial interaction among local governments in tax setting and public spending decisions is receiving increasing attention in the applied public economics literature spatial interaction models rely on the presence of an externality from local budget making in traditional public finance models external effects originate either from interjurisdictional resource flows due to tax competition for a mobile base or from local public expenditure spill overs into neighbouring jurisdictions however the recent political agency yardstick competition literature has stressed the role of informational externalities between neighbouring jurisdictions and predicted tax mimicry at the local level the actual relevance of the above hypotheses clearly needs to be assessed empirically in this paper an attempt is made at discriminating between alternative sources of local fiscal interaction by using data on the english municipal authorities budgets while both public spending levels and local property tax rates ex

micro estimates of public spending demand functions and tests of the tiebout and median voter hypotheses responses to questions given to a random sample of michigan households are used to estimate public spending demand functions while income and price elasticities are similar to those obtained from aggregate data positive income elasticities appear to arise because public services are distributed in a prorich manner a relatively small variance in spending demands among urban and suburban communities in metropolitan areas with substantial public service variety suggests that the tiebout mechanism works this interpretation is supported by the fact that actual spending conforms substantially to desired levels in urban areas but less so in rural areas with little public sector choice

a note on the rationing policies of multiple demand classes with lost sales abstract we study inventory rationing in a system with multiple demand classes and lost sales it is assumed to have at most one outstanding order resulting in two periods in an order cycle separated by the time of order release we review the most related work by melchiors 2001 2003 ph d thesis university of aarhus int j prod econ 81 82 11 461 468 and find that the existing approximated and optimal policies are not easy to obtain due to computational complexity also as the rationing issue before order release is not well addressed in literature in this paper we prove the static rationing being optimal furthermore in such a system with two distinct periods the optimal rationing policy is a combination of a dynamic policy during the replenishment lead time and a static policy before order release in order to make the rationing policies to be readily used in practice we introduce two approximated methods for calculating the rationing levels in two periods respectively the results in particular the combination of static and dynamic rationing outperform the existing approximations in literature in addition the computation is obviously simplified due to the efficient algorithm of dynamic rationing and the explicit expressions of static rationing

stock rationing under service level constraints in a vertically integrated distribution system this paper addresses a rationing problem in a two level vertically integrated distribution system composed of one manufacturer and several retail points the motivating case developed in the vending machine sector and modeled as a newsvendor like problem is representative of many real settings where short term changes in demand can be substantial while capacity modification is not a viable option the paper provides an analytical discussion of the problem from two different standpoints a pure profit maximization perspective and a minimum service level perspective both subject to a product availability constraint that affects the service level the company can provide and the related expected profit by analyzing the lagrangean formulation of the problem we devise efficient computational procedures based on dichotomy search to find the optimal allotments to retailers maximizing the expected profit and ensuring a minimum service level then we extend the analysis to the evaluation of the highest service level that can be provided under a product availability constraint we identify conditions such that the proposed search procedures succeed in finding the optimal solutions as well as bounds for the search domains the proposed approach is legitimated under several demand distribution functions subject to a few commonly adopted restrictions that encompass many of the usually adopted continuous distributions finally the paper presents a three step decision making framework using the proposed procedures summarizing the decision paths the manufacturer might follow in order to optimize the allocation decision

migration and income redistribution responsibilities this study examines whether afdc benefits determine or discourage state to state migration flows in the united states a pooled cross section time series model is developed to estimate afdc benefits in a state and recipients and whether benefits in one state affect benefits in other states a second model using data from the 1980 census and the panel study of income dynamics estimates migration of afdc recipients and the level of benefits in in migration and out migration states both models indicate that small but statistically significant amounts of migration occur which may be quite important but only in the long run movers although small in number are much more likely to move to a state with higher benefits states perceive this migration as important indicating that states should have less control and the federal government more control over income redistribution

system estimation of panel data models under long range dependence abstracta general dynamic panel data model is considered that incorporates individual and interactive fixed effects allowing for contemporaneous correlation in model innovations the model accommodates general stationary or nonstationary long range dependence through interactive fixed effects and innovations removing the necessity to perform a priori unit root or stationarity testing moreover persistence in innovations and interactive fixed effects allows for cointegration innovations can also have vector autoregressive dynamics deterministic trends can be featured estimations are performed using conditional sum of squares criteria based on projected series by which latent characteristics are proxied resulting estimates are consistent and asymptotically normal at standard parametric rates a simulation study provides reliability on the estimation method the method is then applied to the long run relationship between debt and gdp supplementary materials for this article are available online

a dynamic rationing policy for continuous review inventory systems stock rationing is an inventory policy that allows differential treatment of customer classes without using separate inventories in this paper we propose a dynamic rationing policy for continuous review inventory systems which utilizes the information on the status of the outstanding replenishment orders for both backordering and lost sales environments we conduct simulation studies to compare the performance of the dynamic policy with the static critical level and the common stock policies and quantify the gain obtained we propose two new bounds on the optimum dynamic rationing policy that enables us to tell how much of the potential gain the proposed dynamic policy realizes we discuss the conditions under which stock rationing both dynamic and static is beneficial and assess the value of the dynamic policy

strategic control of growth in a system of cities abstract this paper provides an analysis of the supply restriction model of growth controls growth controls in such a model harm consumers while enriching landowners and they will only be adopted if landowners have political power in the model this power is manifested in the city government s use of a social welfare that takes both landlord and consumer welfare into account since cities cannot be small if the supply restriction inherent in growth controls is to have an impact strategic interactions must be considered in the analysis of city choices a general model is presented and an extended example based on leontief preferences is then considered comparative static analysis of nash equilibria in the leontief case shows that perturbations of preferences or other characteristics of a single city can have important spillover effects that alter the choices of all cities in the region

on the theory of growth controls numerous empirical studies have examined the effect of growth controls on housing prices these studies have used many different techniques ranging from hedonic price model estimation to paired comparisons but have all come to the same conclusion growth controls raise the price of housing in theory there are both demand and supply side explanations which need not be mutually exclusive for these observed price differences on the supply side housing caps zoning restrictions limitations on the amount of developable land and other forms of growth control may reduce the supply of housing over time this in turn may produce scarcity effects which manifest as shifts or other changes in the housing supply curve and attendant price increases on the demand side to the extent that growth controls may reduce or internalize expected negative externalities and or congestion costs associated with growth controls may also produce amenity effects such amenity effects manifest as changes in the demand curve and likewise may be capitalized in land values and wages e g the price of a house rises as commute time falls

the dynamic effects of aggregate demand and supply disturbances we interpret fluctuations in gnp and unemployment as due to two types of disturbances disturbances that have a permanent effect on output and disturbances that do not we interpret the first as supply disturbances the second as demand disturbances demand disturbances have a hump shaped mirror image effect on output and unemployment the effect of supply disturbances on output increases steadily over time peaking after two years and reaching a plateau after five years

optimal fiscal policy for a state or local government abstract state and local government services are enjoyed by and taxes borne by two groups residents and non residents this paper addresses the question if state and local governments maximize their residents welfare and cannot distinguish between individual residents and non residents but know the aggregate characteristics of the two groups what set of taxes subsidies and public goods should they choose some of the results obtained are i even when all commodities are taxable and equity is ignored the existence of non resident consumption makes uniform taxation non optimal ii in some cases whether a commodity should be taxed or subsidized is independent of its own price elasticity iii central cities may be subsidized by suburban residents and iv the ability of state and local governments to redistribute is inversely proportional to the openness of the economy

budget spillovers and fiscal policy interdependence evidence from the states abstract this paper formalizes and tests the notion that states expenditures depend on the spending of similarly situated states we find that even after allowing for fixed state effects year effects and common random shocks among neighbors a state government s level of per capita expenditure is positively and significantly affected by the expenditure levels of its neighbors ceteris paribus a one dollar increase in a state s neighbors expenditures increases its own expenditure by over 70 cents

mexican enclaves and the price of culture abstract studies of mexican immigrant earnings consistently find a negative relationship between concentration of mexicans and earnings smith and newman economic inquiry 15 51 66 1977 and yuengert journal of human resources 30 194 204 1995 among others attribute this enclave effect as the compensating differential for culture however the existence of a land market suggests that the price of culture may also depend on culture s effect on the price of land adopting a model developed by roback economic inquiry 26 23 41 1988 i first show that the price of mexican culture is a function of culture s effect on both earnings and rents second using data for california and texas from the 1990 census i estimate the price for mexican culture consistent with the model culture lowers earnings and increases rents in enclaves with larger concentration of mexicans in fact land s share of the price of culture is as much as 42 therefore studies that attribute the lower earnings in enclaves as the compensating differential for enclave externalities underestimate the value of culture this paper also tests several predictions implied by the theoretical model satisfying the general equilibrium conditions the earnings of other workers are higher in enclaves furthermore except for mexican americans the assumption that culture is not an amenity to other workers is supported by the data

the politics of public provision of education public provision of education is usually viewed as a form of redistribution in kind however does it arise when income redistribution is feasible as well i analyze a two dimensional model of political decision making with endogenous political parties society chooses both the tax rate and the allocation of the revenues between income redistribution and public education agents differ in their income and in their age where young agents prefer public education and the old prefer income redistribution i find that when the cohort size of the young is not too large then public education arises as a political compromise between the rich and the young segment of the poor they collude in order to reduce the size of government which benefits the rich and target some of its resources to education which benefits the young poor when the cohort size of the young is too large however income redistribution crowds out public provision of education in the political equilibrium

a stock rationing policy in a s s controlled stochastic production system with 2 phase coxian processing times and lost sales abstract this paper analyzes a s s controlled stochastic production system with multi class demands and lost sales demands in each class are assumed to arrive according to a poisson process and the time required to process an item is assumed to follow a 2 phase coxian distribution for each class a stock rationing level is set when customers arrive if the inventory level is lower than the predetermined rationing level the demands are lost for future demands with higher priorities a behavior of the production system is modeled as a continuous time markov chain and an efficient algorithm to calculate the steady state probability distribution of the system is proposed the average operating cost under the stock rationing policy is compared with the one without stock rationing numerical experiment shows that the proposed stock rationing policy reduces the average operating cost significantly depending on the system parameters

admission and inventory control of a single component make to order production system with replenishment setup cost and lead time abstract we consider the admission control and inventory management problems of a single component make to order production system components are purchased from suppliers in batches of fixed size subject to stochastic lead times and setup costs a control policy specifies when a batch of components is purchased and whether the demand for each mto production is accepted upon arrival we formulate the problem as a markov decision process mdp model and characterize the structure of optimal admission control and inventory replenishment policies we show that a state dependent base stock policy is optimal for the inventory replenishment although the mdp value function is not necessarily convex we also show that the optimal admission control can be identified as a lattice dependent policy a sensitivity analysis is conducted to show how the optimal policy changes as a function of the system parameters to effectively coordinate admission and inventory control decisions we propose simple implementable and yet effective heuristic policies our extensive numerical results suggest that the proposed heuristics can greatly help firms to effectively coordinate their admission and inventory control activities

interdependence in the technology adoption decision among municipalities this study examines the interdependence among municipalities in the discrete decision to adopt internet technology results from probit specifications with interaction effects suggest that cities are influenced by nearby neighbours with similar population size in developing a website evidence is also presented indicating interaction among municipalities in the decision to use internet technology to facilitate financial transactions

income redistribution in a federal system the question of the appropriate level of government to undertake income redistribution is receiving renewed attention from economists the standard argument about the issue might be summarized as follows 1 interstate migration of taxpayers and transfer recipients raises the cost to voters of income redistribution at the state level above the cost at the federal level 2 statewide redistribution confers spillover benefits to residents of other states 3 therefore as compared with a national system decentralized responsibility for income redistribution yields both less redistribution and less than the socially optimal amount of income redistribution the purpose of this paper is only to question step 1 of the above argument of course readers who accept the assumptions of the standard argument may conclude that the possible weakening of step 1 of that argument reduces the likelihood that its conclusion holds the paper argues that the cost of redistribution faced by state residents may in fact be lower at the state level than at the national level because their federal tax obligations fall as the state redistributes more income thus part of the cost of redistribution at the state level can be exported to residents of other states the state s federal tax bill falls when taxable incomes in the state are reduced by increased redistribution deductibility of state taxes enhances this result but is not necessary for it to demonstrate the proposition without adding unnecessary complication a simple model of income redistribution is described in which governments at all levels use linear tax transfer schedules to redistribute income the single government case is considered first then two levels of government are introduced and finally migration is allowed it is shown that without migration state costs are never greater than national costs of redistribution as long as redistribution reduces total money income when migration is allowed the result depends on the elasticity of migration responses compared with the elasticity of labor supply responses

long memory and aggregation in macroeconomic time series this paper explores the interaction between long memory and aggregation results are derived which link the possibly fractional orders of integration of the aggregate series with those of the underlying series when the aggregation is either cross sectional or temporal in discrete or continuous time these results provide empirically testable hypotheses that are examined using six u k macroeconomic series a semiparametric method is found to be broadly consistent with the implications of the theory but fully parametric arfima models show considerable variation each series appears to be integrated of an order of between one and one and a half

multi class dynamic inventory rationing with stochastic demands and backordering dynamic inventory rationing is considered for systems with multiple demand classes stationary stochastic demands and backordering in the literature dynamic programming has been often applied to address this type of problems however due to the curse of dimensionality computation is a critical challenge for dynamic programming in this paper an innovative two step approach is proposed based on an idea similar to the certainty equivalence principle first the deterministic inventory rationing problem is studied where the future demands are set to be the expectation of the stochastic demand processes the important properties obtained from solving the problem with the kkt conditions are then used to develop effective dynamic rationing policies for stochastic demands which gives closed form expressions for dynamic rationing thresholds these expressions are easy to calculate and are applicable to any number of demand classes numerical results show that the expressions are close to and provide a lower bound for the optimal dynamic thresholds they also shed light on important managerial insights for example the relation between different parameters and the rationing thresholds

strategic interaction among governments in the provision of a global public good abstract how do governments respond to other governments when providing a global public good using data from 2007 to 2014 on medical research funding for infectious and parasitic diseases we examine how governments and foundations in 41 countries respond to funding changes by the us government which accounts for half of funding for these diseases because funding across governments might be positively correlated due to unobserved drivers they have in common we use variation in the representation of research intensive universities on us congressional appropriations committees as an instrument for us funding we find that a 10 increase in us government funding for a disease is associated with a 2 to 3 reduction in funding for that disease by another government in the following year

urban growth controls and intercity commuting abstract this paper incorporates the possibility of intercity commuting ic in a growth control model as controls restrict the labor supply the wage rate increases in the city land rents capitalize the wage differential but when this differential reaches the ic cost ic starts to occur keeping wages constant thus if controls are adopted in the benefit of landowners ic weakens the incentive for tighter controls compared to case where ic is not possible however if firms profits which decrease with higher wages are also taken into consideration in the choice of controls then the possibility of ic may induce tighter controls

wasteful commuting a resolution a debate over the empirical underpinnings of urban economic models is emerging under the unlikely rubric of wasteful commuting hamilton 1982 shows that a commonly used monocentric model in which employment and population densities decline exponentially from a center greatly underpredicts actual commuting distances in typical u s and japanese metropolitan areas he concludes that the monocentric model is fundamentally flawed this conclusion is challenged by white 1988b who examines the cost minimizing assignment of households to residential locations taking density patterns as they are and measuring cost by travel time white finds that for a sample of u s metropolitan areas only 11 percent of actual commuting cost is in excess of the cost minimizing amount rather than the 87 percent found by hamilton hamilton 1989 and cropper and gordon 1991 using variations of white s technique obtain results intermediate between these extremes this abstract was borrowed from another version of this item

effects of urban growth controls on intercity commuting this paper presents an empirical study of the effects of urban growth controls on the intercity commuting of workers growth controls land use regulations that attempt to restrict population growth and urban sprawl have increased housing prices and diverted population growth to uncontrolled cities it has been suggested that resulting changes in local labour supply might stimulate intercity commuting from uncontrolled to controlled cities to test this hypothesis a gravity model of commuting flows between places in california is estimated using alternative econometric methods ols heckman selection and count data the possibility of spatial dependence in commuting flows is also taken into consideration results suggest larger commuting flows to destination places that restrict residential growth

what drives corporate tax rates down a reassessment of globalization tax competition and dynamic adjustment to shocks we reassess the driving forces behind the recent decline of corporate tax rates in europe using data for up to 32 countries from 1983 to 2006 we analyze the roles of economic and financial openness as well as tax competition while allowing for dynamic adjustment to shocks and period specific and country specific effects while there is no evidence that countries that have become more open have reduced their tax rates more our findings suggest that countries strongly compete over statutory tax rates a simulation of tax rates in a scenario with no cross sectional dependence in tax setting suggests that in the absence of tax competition the mean statutory tax rate of western european countries in 2006 would have been about 12 5 percentage points above its actual level we conclude that the recent downward trend in corporate taxes is mainly a result of tax competition

optimal policies for inventory systems with priority demand classes we consider a periodic review inventory system with two priority demand classes one deterministic and the other stochastic the deterministic demand must be met immediately in each period however the units of stochastic demand that are not satisfied during the period when demand occurs are treated as lost sales at each decision epoch one has to decide not only whether an order should be placed and how much to order but also how much demand to fill from the stochastic source the firm has the option to ration inventory to the stochastic source i e not satisfy all customer demand even though there is inventory in the system we first characterize the structure of the optimal policy we show that in general the optimal order quantity and rationing policy are state dependent and do not have a simple structure we then propose a simple policy called s k s policy wheres ands ordering policy determine when and how much to order whilek rationing policy specifies how much of the stochastic demand to satisfy we report the results of a numerical study which shows that this simple policy works extremely well and is very easy to compute

stock rationing in an m ek 1 make to stock queue this paper considers the stock rationing problem of a single item make to stock production system with several demand classes and lost sales when demand is poisson and processing time has an erlang distribution we show that a single state variable called work storage level can be employed to completely capture the information regarding inventory level and the status of current production the optimal rationing policy can be characterized by a sequence of monotone critical work storage levels for each demand class there exists a work storage level at or below which it is optimal to start rejecting the demand of this class in anticipation of future arrival of higher priority demands the optimal production policy can also be characterized by a critical work storage level our numerical examples indicate that a critical stock level policy which ignores information on the status of current production performs very well

restricted time remembering policies for the inventory rationing problem abstract we analyse an s q inventory model with unit poisson demand several demand classes and lost sales when dealing with different demand classes the usual approach is to control the inventory by critical levels at which stock is reserved for demand of higher priority we focus on time remembering policies where the critical levels are allowed to depend on the time since the actual outstanding order if any was issued in particular we introduce a new class of policies called restricted time remembering rtr policies we divide the lead time in m intervals of time and restrict the critical levels of the rtr policy to be constant over each interval of time this policy is much easier to implement than the optimal rationing policy where the critical levels can change continuously over time and in a numerical study we show that the performance of the rtr policy is close to that of the optimal policy even when the number of intervals is 2 or 3

a threshold inventory rationing policy for service differentiated demand classes motivated by a study of the logistics systems used to manage consumable service parts for the u s military we consider a static threshold based rationing policy that is useful when pooling inventory across two demand classes characterized by different arrival rates and shortage stockout and delay costs the scheme operates as a q r policy with the following feature demands from both classes are filled on a first come first serve basis as long as on hand inventory lies above a threshold levelk once on hand inventory falls below this level low priority i e low shortage cost demand is backordered while high priority demand continues to be filled we analyze this static policy first under the assumption that backorders are filled according to a special threshold clearing mechanism structural results for the key performance measures are established to enable an efficient solution algorithm for computing stock control and rationing parameters i e q r andk numerical results confirm that the solution under this special threshold clearing mechanism closely approximates that of the priority clearing policy we next highlight conditions where our policy offers significant savings over traditional round up and separate stock policies encountered in the military and elsewhere finally we develop a lower bound on the cost of the optimal rationing policy numerical results show that the performance gap between our static threshold policy and the optimal policy is small in environments typical of the military and high technology industries

component rationing for available to promise scheduling in configure to order systems abstract we address the problem of rationing common components among multiple products in a configure to order system with order configuration uncertainty the objective of this problem is to maximize expected revenue by implementing a threshold rationing policy under this policy a product is available to promise if fulfilling the order for the product will not cause the inventory of any one of its required components to fall below the component s threshold level for that product the problem is modeled as a two stage stochastic integer program and solved using the sample average approximation approach a heuristic is developed to generate good feasible solutions and lower bound estimates using industry data we examine the benefit of component rationing as compared to a first come first served policy and show that this benefit is correlated to the average revenue per product and the variability in the revenue across products whose components are constrained

wasteful commuting again in wasteful commuting hamilton 1982 i presented estimates that suggested that almost 90 percent of urban commuting could be eliminated by reassigning workers to different houses or jobs it does not matter which furthermore i argued that this minimum feasible commute is the volume of commuting that would emerge from the optimization process underlying the standard monocentric models even allowing for decentralized employment white 1988 has challenged some of my assumptions as well as my results with respect to assumptions she argues that suburban employment is not diffuse as i assume but is concentrated in subcenters if these subcenters are a significant portion of suburban employment then my estimates of required commuting are biased downward because the commuting pattern that i assumed to be optimal is not feasible white then estimates required and wasteful commuting based on journey to work data from the 1980 census on the basis of these data she concludes that only about 10 percent of commuting could be eliminated by swapping homes and jobs

testing for strategic interaction among local governments the case of growth controls this paper helps to fill a gap in the public economics literature by providing empirical evidence on strategic interaction among local governments using the methodology of case et al journal of public economics 52 285 307 1993 the paper focuses on the adoption of growth control measures by cities in california and looks for evidence of policy interdependence in these choices the data are drawn from an elaborate survey of growth control practices in california cities conducted by glickfeld and levine regional growth local reaction lincoln institute of land policy cambridge ma 1992 the survey results are used to compute an index of the stringency of growth controls in each city which serves as the dependent variable for the study

inventory rationing in a make to stock production system with several demand classes and lost sales this paper considers the stock rationing problem of a single item make to stock production system with several demand classes and lost sales for the case of poisson demands and exponential production times we show that the optimal policy can be characterized by a sequence of monotone stock rationing levels for each demand class there exists a stock rationing level at or below which it is optimal to start rejecting the demand of this class in anticipation of future arrival of higher priority demands a simple queueing model is analyzed to compute the operating cost of a rationing policy in a numerical study we compare the optimal rationing policy with a first come first served policy to investigate the benefit of stock rationing under different operating conditions of the system

risk and return long run relations fractional cointegration and return predictability univariate dependencies in market volatility both objective and risk neutral are best described by long memory fractionally integrated processes meanwhile the ex post difference or the variance swap payoff reflecting the reward for bearing volatility risk displays far less persistent dynamics using intraday data for the standard poor s 500 and the volatility index vix coupled with frequency domain methods we separate the series into various components we find that the coherence between volatility and the volatilityrisk reward is the strongest at long run frequencies our results are consistent with generalized long run risk models and help explain why classical efforts of establishing a

between anarchy and leviathan a note on the design of federal states abstract recent research suggests a rationale for the autonomy retained by federal states lower and intermediate level governments by encouraging interjurisdictional competition federal structures constrain the pursuit by public officials of private objectives inconsistent with the public weal but using federal structures to achieve this end has a cost the more decentralized a nation s public sector the more likely that some of the externalities generated by the provision of public goods and services will be ignored this note investigates the balance between the costs and benefits of decentralization that must be struck by a federal state s designers

economic freedom and migration flows between u s states a modified gravity model is estimated using a cross section of data drawn from the u s census bureau survey of 2000 in order to analyze the impact of economic freedom on gross migration flows among the lower 48 states spatial econometric methods are utilized in order to capture spatial effects not detected by distance in addition the economic freedom of north america index is decomposed to determine the individual impact of various policies results show that states with higher relative economic freedom experience greater migration inflow through its direct impact on income and employment growth in aggregate the findings indicate that individuals migrate toward states with relatively higher government consumption expenditures relatively lower tax burdens and states with more freedom with respect to labor decisions in the form of less restrictive minimum wages less concentration of unions and less dependence on public employment

dynamic inventory rationing for systems with multiple demand classes and general demand processes we consider the dynamic rationing problem for inventory systems with multiple demand classes and general demand processes we assume that backorders are allowed our aim is to find the threshold values for this dynamic rationing policy for single period systems dynamic critical level policy is developed and the detailed cost approximation subject to this policy is derived for multiperiod systems a dynamic rationing policy with periodic review is proposed the numerical study shows that our dynamic critical level policies are close to being optimal for various parameter settings

a spare parts stocking policy based on equipment criticality demand for spare parts can sometimes be classified into critical and non critical demand depending on the criticality of the equipment in which it is installed to effectively handle this situation in spare parts inventory control we propose a stocking policy where some of the stock is reserved for critical demand for poisson demand and a lot for lot stocking policy with a deterministic replenishment lead time approximations of the service levels for both classes of demand are derived and verified by simulation finally a numerical example is presented to illustrate the advantages of using the proposed policy

how a race to the bottom can make you fat abstractthis article measures the effect of fiscal competition on obesity rates in the united states through education and health spending we hypothesize that fiscal competition to attract firms r

the mechanisms of spatial mismatch the spatial mismatch hypothesis smh argues that low skilled minorities residing in us inner cities experience poor labour market outcomes because they are disconnected from suburban job opportunities this assumption gave rise to an abundant empirical literature which is rather supportive of the smh surprisingly it is only recently that theoretical models have emerged which probably explains why the mechanisms of spatial mismatch have long remained unclear and not properly tested this article presents relevant facts reviews the theoretical models of spatial mismatch confronts their predictions with available empirical results and indicates which mechanisms deserve further empirical tests

fractional beta convergence abstract unit roots in output an exponential 2 rate of convergence and no change in the underlying dynamics of output seem to be three stylized facts that cannot go together this paper extends the solow swan growth model allowing for cross sectional heterogeneity in this framework aggregate shocks might vanish at a hyperbolic rather than at an exponential rate this implies that the level of output can exhibit long memory and that standard tests fail to reject the null of a unit root despite mean reversion exploiting secular time series properties of gdp we conclude that traditional approaches to test for uniform conditional and unconditional convergence suit first step approximation we show both theoretically and empirically how the uniform 2 rate of convergence repeatedly found in the empirical literature is the outcome of an underlying parameter of fractional integration strictly between 1 2 and 1 this is consistent with both time series and cross sectional evidence recently produced

an optimal taxation approach to fiscal federalism in a federal system of government each unit of government decides independently how much of each type of public good to provide and what types of taxes and which tax rates to use in funding the public goods in this paper we explore what types of problems can arise from this decentralized form of decision making in particular we describe systematically the types of externalities that one unit of government can create for nonresidents through both its public goods decisions and its taxation decisions the paper also explores briefly what the central government might do to lessen the costs of decentralized decision making

urban commuting journeys are not wasteful do urban workers commute too much bruce hamilton 1982 was the first to raise the question whether urban workers commuting journeys are too long or in his terms wasteful he argued that the monocentric urban model predicts that workers commuting journeys will be minimized to test the model he calculated the minimum commuting journey length for the average worker in a group of u s cities and compared the results to the actual average commuting journey length for those workers he assumed that any difference between the two figures was wasteful commuting he found that the average minimum commuting distance was only 1 1 miles but the average distance actually commuted by workers in those cities was 8 7 miles or nearly eight times as great hamilton therefore concluded that the monocentric urban model has little predictive value concerning commuting behavior and that actual commuting behavior could be predicted just as well using an assumption that commuting is random commuting behavior is a central feature of any model that purports to explain urban residential and job location choice hamilton s assertion that the monocentric urban model has little predictive value concerning commuting behavior therefore strikes at the heart of

interest groups and the size of government the results of the previous section estimates of a three equation model from 23 observations must obviously be regarded as tentative the consistent positive relationship between number of interest groups and size of government observed with changing sets of included independent variables changing samples of nations and treating the number of interest groups as either exogenous or codetermined does imply rather unequivocally that interest groups are able to influence public policies in such a manner as to lead to increased government size beyond helping to reinforce this conclusion the results of the previous section should be regarded as first steps in the development of a model of the polity that can explain participation in the political process by interest groups and citizens as well as the size of government

dynamic inventory rationing with mixed backorders and lost sales abstract customers may react differently when stockouts occur in this paper we investigate the rationing policy for an inventory system with a mixture of demand classes of backorder type and lost sales type since the penalty cost of backorders varies with time the priorities of demand classes also alter with time this totally changes the problem structure compared with the classic rationing models a dynamic rationing policy is studied in this paper by considering the dynamics of demand priorities a markov decision model is developed to obtain the optimal dynamic rationing levels for multiple demand classes the results indicate that between the priority switching points rationing levels often exhibit different patterns for lost sales demand classes the rationing levels always decrease as the remaining time approaches to zero for backorder demand classes the rationing levels increase in some parts due to declining of the priorities the rationing levels of all demand classes finally decline to zero to reduce the inventory holding cost the application of dynamic rationing is further extended from a single period model to a multi period s t model where unit cost has to be included the optimal ordering policy is proved to be a myopic base stock policy and the dynamic rationing policy in the single period model can still be applied with modified time independent penalty costs for lost sales classes to overcome the computational complexity a heuristic dynamic rationing policy is introduced due to its good outcome implementing such a heuristic dynamic rationing policy can be a practical solution for inventory system with mixed backorders and lost sales in order to enhance the system performance

dynamic inventory rationing strategies for inventory systems with two demand classes poisson demand and backordering we study inventory systems with two demand classes critical and non critical poisson demand and backordering we analyze dynamic rationing strategies where the number of items reserved for critical demand depends on the remaining time until the next order arrives different from results in the literature we do not discretize demand but derive a set of formulae that determine the optimal rationing level for any possible value of the remaining time moreover we show that the cost parameters can be captured in a single relevant dimension which allows us to present the optimal rationing levels in charts and lookup tables that are easy to implement numerical examples illustrate that the optimal dynamic rationing strategy outperforms all static strategies with fixed rationing levels

mental health expenditure in england a spatial panel approach we empirically investigate the determinants of local authority mental health expenditure in england we adopt a reduced form demand and supply model extended to incorporate possible interaction among authorities as well as unobserved heterogeneity the model is estimated using an annual panel dataset that allows us to explore both time series and cross municipality variation in mental health expenditure results are consistent with some degree of interdependence between neighbouring municipalities in spending decisions this first attempt to apply spatial panels in investigating health expenditure offers insights and raises new questions

common long range dependence in a panel of hourly nord pool electricity prices and loads abstract equilibrium electricity spot prices and loads are often determined simultaneously in a day ahead auction market for each hour of the subsequent day hence daily observations of hourly prices take the form of a periodic panel rather than a time series of hourly observations we consider novel panel data approaches to analyse the time series and the cross sectional dependence of hourly nord pool electricity spot prices and loads for the period 2000 2013 hourly electricity prices and load data are characterized by strong serial long range dependence in the time series dimension in addition to strong seasonal periodicity and along the cross sectional dimension i e the hours of the day there is a strong dependence which necessarily has to be accounted for in order to avoid spurious inference when focusing on the time series dependence alone the long range dependence is modelled in terms of a fractionally integrated panel data model and it is shown that both prices and loads consist of common factors with long memory and with loadings that vary considerably during the day due to the competitiveness of the nordic power market the aggregate supply curve approximates well the marginal costs of the underlying production technology and because the demand is more volatile than the supply equilibrium prices and loads are argued to identify the periodic power supply curve the estimated supply elasticities are estimated from fractionally co integrated relations and range between 0 5 and 1 17 with the largest elasticities being estimated during morning and evening peak hours