an economic theory of self control the concept of self control is incorporated in a theory of individual intertemporal choice by modeling the individual as an organization the individual at a point in time is assumed to be both a farsighted planner and a myopic doer the resulting conflict is seen to be fundamentally similar to the agency conflict between the owners and managers of a firm both individuals and firms use the same techniques to mitigate the problems which the conflicts create this paper stresses the implications of this agency model and discusses as applications the effect of pensions on saving saving and the timing of income flows and individual discount rates

estimation of the structure and elasticities of mexican imports in the period 1961 1979 abstract this paper examines the changing structure of mexican imports over the period 1961 1979 and its relationship to the acceleration of imports in 1978 1979 it is found that the more lenient policies adopted by the government in that period seem to be associated with the higher import levels a review of mexican policy with respect to foreign trade in 1980 seems to be consistent with the results reported in this paper

are ghettos good or bad spatial separation of racial and ethnic groups may theoretically have positive or negative effects on the economic performance of those groups we examine the effects of segregation on outcomes for blacks in schooling employment and single parenthood we find that blacks in more segregated areas have significantly worse outcomes than blacks in less segregated areas we control for the endogeneity of location choice using instruments based on political factors topographical features and residence before adulthood a one standard deviation decrease in segregation would eliminate one third of the black white differences in most of our outcomes

south north trade and southern growth bleak prospects from the structuralist point of view abstract a three country three commodity model is developed to illustrate the dynamics of growth among the north the south and opec one conclusion is that the southern growth rate will be increased by faster growth of northern capital with a steady state response coefficient of unity however if the steady state is perturbed by increases in northern productivity or the oil price then the coefficient becomes less than one in the short run higher capital flows from north to south increase the former s growth rate but may have only marginal impact on growth in the south higher productivity in the south will slow its growth rate and reduce its terms of trade when the engel elasticity of northern demand for its exports is less than one these and other results follow from surplus labor in the south and its dependent position in international trade from which it will be difficult to escape

group loyalty and the taste for redistribution interpersonal preferences preferences that depend on the characteristics of others are typically hard to infer from observable individual behavior as an alternative approach this paper uses survey data to investigate interpersonal preferences i show that self reported attitudes toward welfare spending are determined not only by financial self interest but also by interpersonal preferences these interpersonal preferences are characterized by a negative exposure effect individuals decrease their support for welfare as the welfare recipiency rate in their community rises and racial group loyalty individuals increase their support for welfare spending as the share of local recipients from their own racial group rises these findings help to explain why levels of welfare benefits are relatively low in racially heterogeneous states

an empirical study of the consolidation of local public health services in connecticut this study contributes to the literature by empirically examining the decision of connecticut communities to consolidate the delivery of public health services as theory suggests the prospect of scale economies is found empirically to increase the likelihood that a community consolidates public health services in addition differences across communities are found to inhibit the consolidation of public health services overall the results imply that financial incentives may be necessary to encourage more regional districts because localities may underestimate the true minimum efficient scale for public health services and because heterogeneity among jurisdictions impedes regional cooperation

nonlinear nonparametric nonessential exchange rate estimation a wide variety of empirical exchange rate mo dels have been estimated over the years but despite the considerable energies that have been devoted to this work the economics profession has remarkably little to show for itself there is little evidence that conclusively links the bilateral exchange rates of typical oecd countries to fundamental macroeconomic determinants of exchange rates such as money output relative prices or interest differentials coefficient estimates are notoriously unstable and frequently mis signed compared with theoretical predictions exchange rate equations do not fit particularly well and forecast no better than the simplest naive alternatives recently a new class of exchange rate models was introduced by paul krugman 1988 these models provide a potential reason for the poor performance of traditional exchange rate models because they are nonlinear if the exchange rate actually depends in a nonlinear way on exogenous macroeconomic fundamentals linear exchange rate models may work poorly even though the exchange rate is closely linked to fundamentals in this paper we provide a brief sketch of some of this work as well as some preliminary evidence on the actual performance of these nonlinear models in our empirical analysis we use a nonparametric estimator that can handle a wide variety of nonlinear phenomena we examine fixed exchange rate regimes where nonlinearities should be quite easy to detect however we do not find strong empirical support for the hypothesis that the incorporation of nonlinear effects significantly improves models of exchange rate determination in section i we briefly review the theoretical literature on nonlinear target zone exchange rate models linking this work to the tests for intrinsic bubbles we draw heavily on recent papers by kenneth froot and maurice obstfeld 1989a b our methodology and data are discussed in section ii section iii contains new empirical tests for nonlinearities in exchange rate models

the geography of linguistic diversity and the provision of public goods abstract this paper analyzes the importance of local interaction between individuals of different ethnolinguistic groups for the provision of public goods at the national level the conceptual framework we develop suggests that a country s public goods i decrease in its overall ethnolinguistic fractionalization and ii either increase or decrease in its local global ethnolinguistic complementarity a measure of how local interaction affects antagonism towards other groups in the society at large after constructing a 5 km by 5 km dataset on language use for 223 countries we empirically explore these theoretical predictions while overall fractionalization worsens public goods outcomes local interaction mitigates this negative association conditional on a country s overall diversity public goods outcomes are maximized when there are a few large sized groups and the diversity of each location mirrors that of the country as a whole

economic growth in a cross section of cities abstract we examine the relationship between urban characteristics in 1960 and urban growth between 1960 and 1990 income and population growth move together and both types of growth are 1 positively related to initial schooling 2 negatively related to initial unemployment and 3 negatively related to the initial share of employment in manufacturing racial composition and segregation are uncorrelated with urban growth across all cities but in cities with large nonwhite communities segregation is positively correlated with population growth government expenditures except for sanitation are uncorrelated with growth government debt is positively correlated with later growth

target zones and exchange rate dynamics this paper develops a simple model of exchange rate behavior under a target zone regime it shows that the expectation that monetary policy will be adjusted to limit exchange rate variation affects exchange rate behavior even when the exchange rate lies inside the zone and is thus not being defended actively somewhat surprisingly the analysis of target zones turns out to have a strong formal similarity to problems in option pricing and investment under uncertainty

is the median voter decisive evidence from referenda voting patterns abstract this paper examines whether the voter with the median income is decisive in local spending decisions previous tests have relied on cross sectional data while we make use of a pair of california referenda to estimate a first difference specification the referenda proposed to lower the required vote share for passing local educational bonding initiatives from 67 to 50 and 67 to 55 respectively we find that voters rationally consider future public service decisions when deciding how to vote on voting rules however the empirical evidence strongly suggests that an income percentile below the median is decisive for majority voting rules especially in communities that have a large share of high income voters with attributes that suggest low demand for public services based on a model that explicitly recognizes that each community contains voters with both high and low demand for public school spending we also find that an increase in the share of low demand voters is associated with a lower decisive voter income percentile for the high demand group this two type model implies that our low demand types individuals over age 45 with no children have demands that are 45 lower than other voters collectively these findings are consistent with high income voters with weak preferences for public educational services voting with the poor against increases in public spending on education

cities and cultures we investigate whether cultural diversity across us cities measured as the variety of native languages spoken by city residents is associated with any effect on their productivity diversity of cultures may imply diversity of production skills of abilities and of occupations that enhances the productive performance of a city on the other hand transaction costs and frictions across groups may hurt productivity similarly diversity in available goods and services can increase utility but distaste for or hostility to different cultural groups may decrease it using census data from 1970 to 1990 we find that wages and employment density of us born workers were systematically higher ceteris paribus in cities with richer linguistic diversity these positive correlations reveal a net positive effect of diversity on productivity that survives robustness checks and instrumental variable estimation this effect is found to be stronger for highly educated workers and for white workers we also show that better assimilated non native speakers i e those who speak english well and have been in the us for more than five years are most beneficial to the productivity of us born workers

do political parties matter evidence from u s cities are cities as politically polarized as states and countries no is the answer from our regression discontinuity design analysis which shows that whether the mayor is a democrat or a republican does not affect the size of city government the allocation of local public spending or crime rates however there is a substantial incumbent effect for mayors we investigate three mechanisms that could account for the striking lack of partisan impact at the local level and find the most support for tiebout competition among localities within metropolitan areas

crowd out and diversity abstract research has shown that altruism is lower in diverse communities can this phenomenon be counteracted by government intervention to answer this question this paper introduces diversity to the canonical model of warm glow giving diversity may have two effects on incentives it may attenuate individuals altruistic preferences for public goods and it may cool off the warm glow that individuals get from voluntarism either of these effects leads to diverse communities having lower levels of public goods consistent with prior research however these effects have opposite implications for the efficacy of government intervention i then empirically investigate whether government intervention is more effective in diverse communities for identification i exploit the supreme court mandated 1991 expansion of the ssi program using a new dataset of united methodist churches from 1984 to 2000 the results show that the expansion of ssi crowded out charitable spending by churches the crowd out estimate for the average church is reasonably large but this masks significant differences in crowd out between communities crowd out occurred almost entirely in relatively homogeneous communities there is only modest evidence of crowd out in racially diverse communities thus diverse communities while having the lowest levels of altruism are in this instance the most amenable to government intervention

expected and predicted realignments the ff dm exchange rate during the ems an empirical model of time varying realignment risk in an exchange rate target zone is developed expected rates of devaluation are estimated as the difference between interest rate differentials and estimated expected rates of depreciation within the exchange rate band using french franc deutsche mark data during the european monetary system the behavior of estimated expected rates of depreciation accord well with the theoretical model of bertola svensson 1990 we are also able to predict actial realignments with some success

redistribution in a model of voting and campaign contributions abstract i propose a framework in which individual political participation can take two distinct forms voting and contributing resources to campaigns in a context in which the negligible impact of any individual s actions on aggregate outcomes is fully recognized by all agents i then use the framework to reassess the relationship between inequality and redistribution the model shows that even though each contribution has a negligible impact the interaction between contributions and voting leads to an endogenous wealth bias in the political process as the advantage of wealthier individuals in providing contributions encourages parties to move their platforms closer to those individuals preferred positions this mechanism can in turn explain why the standard median voter based prediction that more inequality produces more redistribution has received little empirical support higher inequality endogenously shifts the political system further in favor of the rich in equilibrium there is a non monotonic relationship in which redistribution is initially increasing but eventually decreasing in inequality i present some empirical evidence supporting the framework using data on campaign contributions from us presidential elections in particular inequality increases contributions to republicans but not to democrats as predicted by the model

an interpretation of recent research on exchange rate target zones how do exchange rate bands work compared to completely fixed rates between realignments or more precisely what are the dynamics of exchange rates interest rates and central bank interventions within exchange rate bands does the difference between bands and completely fixed exchange rates matter and if so which of the two arrangements is best or more precisely what are the tradeoffs that determine the optimal bandwidth this article will present an interpretation of some selected recent theoretical and empirical research on exchange rate target zones with emphasis on main ideas and results and without technical detail

old and young politicians we consider the role of a politician s age in italian municipal governments when the term limit is not binding younger mayors engage in political budget cycles more often than older mayors thus younger politicians behave more strategically in response to electoral incentives probably because they expect to have a longer political career and stronger career concerns we discuss and rule out several alternative interpretations

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

oil price effects in theory and practice abstract the present paper contains an investigation of the international repercussions of oil price effects the analysis develops a theoretical model to study the effects of oil price changes on real income prices and international trade in a three region model dcs opec ldcs the comparative statics analysis indicates that oil price effects cannot be determined unambiguously unless information about structural parameters and policy reactions is also provided to estimate the quantitative effects of oil price changes the analysis relies on dynamic simulations of an econometrically estimated version of the theoretical model such a model is subject to a sensitivity analysis providing quantitative information about the international transmission of oil price effects

examining the relationship between municipal consolidation and cost reduction an instrumental variable approach abstractthis study explores the cost reduction effects of local government consolidation using data from japanese municipalities we use municipal panel data from japan for the years 2000 2005 and 2010 a data set including numerous consolidation cases reverse causality between consolidation decisions and size of municipal expenditure is a concern in the voluntary consolidation of local governments an instrumental variable iv methodology is employed to deal with possible endogeneity associated with consolidation decisions the main finding is that municipal current expenditure per capita increases immediately after consolidation but then gradually declines because consolidation seems to increase per capita expenditure in the absence of the effect of this long term declining trend incorporating this trend into estimation is crucial in cost efficiency analysis of consolidation it is also shown that conventional panel data regressions yield biased consolidation effects suggesting the superiority o

social connections and group banking lending to the poor is expensive due to high screening monitoring and enforcement costs group lending advocates believe lenders overcome this by harnessing social connections using data from finca peru i exploit a quasi random group formation process to find evidence of peers successfully monitoring and enforcing joint liability loans individuals with stronger social connections to their fellow group members i e either living closer or being of a similar culture have higher repayment and higher savings furthermore i observe direct evidence that relationships deteriorate after default and that through successful monitoring individuals know who to punish and who not to punish after default

the breakup of nations a political economy analysis this paper develops a model of the breakup or unification of nations in each nation the decision to separate is taken by majority voting a basic trade off between the efficiency gains of unification and the costs in terms of loss of control on political decisions is highlighted the model emphasizes political conflicts over redistribution policies the main results of the paper are i when income distributions vary across regions and the efficiency gains from unification are small separation occurs in equilibrium and ii when all factors of production are perfectly mobile all incentives for separation disappear i introduction following the demise of communism the entire map of europe from the atlantic coast to the urals is being redrawn and issues of separation unification and the redrawing of borders are yet again at the forefront of european concerns many of the issues raised by this process are primarily of a political cultural or linguistic nature however there are also economic considerations that bear on this problem the objective of this paper is to analyze some important economic and political determinants of the process of unification and separation of democratic nations the starting point of our analysis is to suppose that from an economic efficiency point of view separation of nations is never desirable a unified nation is always more efficient since free trade among regions is guaranteed duplication costs in defense and law enforcement are avoided and local public goods provision such as transportation and communication networks or common standards can be coordinated furthermore any benefits of decentralization that might be obtained in a world with several nations may also be achieved within a unified nation by replicating the administrative structure of the world with several

an empirical reassessment of target zone nonlinearities abstract in this paper we investigate the presence of target zone nonlinearities in the pound sterling german mark exchange rate for the period of the uk european exchange rate mechanism erm membership using data with frequency of every 2 days tests against general nonlinear specifications as well as specifications consistent with a stochastic devaluation risk model of exchange rate target zones are carried out using recursive techniques in addition the significance of nonlinear effects is analysed within a recursive bayesian framework we find evidence of target zone nonlinearities in the whole sample but the recursive analysis yields support for the presence of such nonlinearities only in specific subsamples our results imply that the reduction in the uk inflation rate was most likely a consequence of contractionary policies rather than of the expectational effects associated with the target zone

testing the basic target zone model on swedish data 1982 1990 the swedish exchange rate band is studied using daily data on exchange rates and interest rate differentials for the 1980s applying a number of different statistical and econometric techniques it is found that the first generation of target zone models cannot provide an adequate explanation of swedish data the main reasons are probably intra marginal interventions by the swedish central bank and time varying devaluation expectations

wages rents and the quality of life this study focuses on the role of wages and rents in allocating workers to locations with various quantities of amenities the theory demonstrates that if the amenity is also productive then the sign of the wage gradient is unclear while the rent gradient is positive the theory is extended to include the housing market and nontraded goods these extensions require little modification of the conclusion the empirical work on wages shows that the regional wage differences can be explained largely by these local attributes with the use of site price data implicit prices are estimated and quality of life rankings for the cities are computed

the political economy of regional integration projects at borders where poor and rich meet the role of cross border shopping and community sorting abstract at borders between poor and rich countries huge service price differentials could be exploited to mutual benefit offering better paid job opportunities to the poor as well as better shopping opportunities to the rich however cross border shopping is often limited by the substantial transaction costs of crossing the border moreover countries and regions frequently fail to cut these transaction costs even when they have the opportunity to do so we provide a politico economic analysis of cross border integration projects more specifically we show how the political outcome depends on i intra country mobility ii decision making and housing ownership regimes and iii federal grants and international border regulations our analysis builds on two key characteristics in which individuals differ interregional mobility and intercultural ability

electoral vulnerability and size of local governments evidence from voting on municipal mergers abstract we analyze how anticipated changes in the electoral vulnerability of municipal councilors affect their voting behavior over municipal mergers the electoral vulnerability changes due to a merger because it changes the composition of political competitors and the number of available seats in the next election we use this variation for identification and find that the smaller the increase in the electoral vulnerability of a councilor the more likely he is to vote for the merger the documented effect is not driven by the behavioral response of the voters or by party line considerations the councilors desire to avoid personal electoral competition may lead to sub optimally small municipalities from the local citizens point of view

a spatial merger estimator with an application to school district consolidation abstract this paper develops a spatial merger estimator to explain political integration generally and then applies this method to a wave of school district mergers in the state of iowa during the 1990s our estimator is rooted in the economics of matching and thus accounts for three important features of typical merger protocol two sided decision making multiple potential partners and spatial interdependence rather than simply explaining when a particular region is likely to experience a wave of political integration our method allows us to explore the factors driving which specific subregional mergers take place this allows us to explore how those districts that merge choose with which of their neighbors to do so our results highlight the importance of state financial incentives for consolidation economies of scale diseconomies of scale and a variety of heterogeneity measures in this particular application we also demonstrate the power of our estimator relative to existing estimators to detect a statistically significant role for heterogeneity factors while our application is limited to school district consolidation our method can be adapted to include the salient features of many spatial integration problems

federal competition and economic growth abstract this paper exploits exogenous variation in the natural topography of the united states to estimate the causal impact of inter jurisdictional competition on income growth we find that doubling the number of county governments in a metropolitan area leads to a 17 increase in the average annual growth rate of earnings per employee over 1969 2006 and a 10 increase in 2006 income per employee decomposing income effects using 2000 census worker level data we find that approximately half of the effect stems from making workers more productive while the other half comes from changing the composition of the workforce and inducing workers to work more hours we also present evidence that inter jurisdictional competition leads local governments to raise more in taxes spend more and issue more debt per capita but does not help them obtain more inter governmental transfers however the additional cost from this increase in expenditures to a median wage employee is much smaller than the increase in that employee s wages due to greater inter jurisdictional competition

dutch disease economics and oil syndrome an empirical study abstract this paper integrates the existing dutch disease models of an oil boom into a reduced form three sector model and estimates it for five developing oil exporting countries having significant agricultural and manufacturing sectors time series annual data for the period 1966 1986 are used for algeria ecuador indonesia nigeria and venezuela their output composition is altered by an increase in their oil revenues the spending effect and in the world price of manufactured goods relative to agricultural products the world price effect both effects expand the manufacturing sectors of these countries and contract their agricultural sectors the spending effect expands their nontraded sectors whereas the world price effect may expand or contract them the opposite results are implied for the oil collapse of the 1980s

citizens support for inter municipal cooperation evidence from a survey in the german state of hesse inter municipal cooperation imc is often proposed as a politically feasible way by which rural municipalities can cope with intensified interregional competition and demographic change we provid

ghost house busters the electoral response to a large anti tax evasion program the incentives of political agents to enforce tax collection are key determinants of the levels of compliance we study the electoral response to the ghost buildings program a nationwide anti tax evasion policy in italy that used innovative monitoring technologies to target buildings hidden from tax authorities two million buildings were registered as a result of the program our difference in differences identification strategy exploits both variation across towns in the ex ante program scope to increase enforcement as well as administrative data on actual building registrations local incumbents experience an increase in their reelection likelihood as a consequence of the policy in addition these political returns are higher in areas with lower tax evasion tolerance and with higher speed of public good provision implying complementarity among enforcement policies the underlying tax culture and government efficiency

volunteering to be taxed business improvement districts and the extra governmental provision of public safety abstract when the median voter s preference sets the level of local public goods some voters are left unsatisfied is there an institution by which subsets of voters can resolve the collective action problem and increase the local provision of public goods if so what are the consequences in response to problems such as crime and vandalism neighborhood property owners have established business improvement districts bids to provide local public goods when a bid is approved by a majority of property owners in a neighborhood state law makes contributions to the bid budget mandatory this resolution of the neighborhood s collective action problem reduces crime bids in the city of los angeles are robustly associated with crime declines of 6 to 10 indeed crime falls regardless of estimation technique fixed effects comparing bids to neighborhoods that considered but did not adopt bids using propensity score matching and comparing bids to their neighbors strikingly these declines are purchased cheaply attributing all bid expenditure to violent crime reduction and thus ignoring the impact of bid expenditure on many quality of life crimes bids spend 21 000 to avert one violent crime this higher bound estimate is substantially lower than the 57 000 social cost of a violent crime

self command in practice in policy and in a theory of rational choice an increasingly familiar occurrence for obstetricians is being asked by patients to withhold anesthesia during delivery the physician often proposes that a facemask be put beside the patient who may inhale nitrous oxide as she needs it but some determined patients ask that no such opportunity be provided if gas is available they will use it and they want not to be able to the request is interesting for decision theory and raises questions of ethics policy and physician responsibility even if the woman is merely making a mistake if she simply does not know how painful labor will be and how glad she will be even in retrospect if the pain is relieved but some women who make this request have had earlier deliveries during which they demanded anesthesia and received it they are acquainted with the pain they anticipate asking for relief and they want it withheld when they do they expect to regret afterwards any recourse to anesthesia this particular instance of attempted selfdenial has features that are special but many that are common the woman is so far as we know in good health physically and mentally she anticipates a transient period when her usual values and preferences will be suspended or inaccessible she has reasons for wanting to frustrate her own wishes at the critical time she needs cooperation she may ratify her choice afterward by expressing herself grateful that no anesthesia was offered even when requested there are ethical dilemmas and legal issues and there is conflict if say the husband disagrees with the physician in the delivery room about what his wife really wants

conflict defense spending and the number of nations abstract this paper provides a formal model of endogenous border formation and choice of defense spending in a world with international conflict we examine both the case of democratic governments and of dictatorships the model is consistent with three observations first breakup of countries should follow a reduction in the likelihood of international conflicts second the number of regional conflicts between smaller countries may increase as a result of the breakup of larger countries third the size of the peace dividend the reduction in defense spending in a more peaceful world is limited by the process of country breakup

municipal preferences for state imposed amalgamations an empirical study based on the swedish municipal reform of 1952 this paper concerns municipal preferences for state imposed municipal amalgamations focusing on factors that may explain municipal acceptance of or objection to a state imposed amalgamation deci

network effects and welfare cultures we empirically examine the role of social networks in welfare participation using data on language spoken at home to better infer networks within an area our empirical strategy asks whether being surrounded by others who speak the same language increases welfare use more for those from high welfare using language groups this methodology allows us to include local area and language group fixed effects and to control for the direct effect of being surrounded by one s language group these controls eliminate many of the problems in previous studies the results strongly confirm the importance of networks in welfare participation

specification of production functions for analyzing technical change and factor inputs in agricultural development abstract this paper focuses on some vital issues involed in specifying the number of variables to be included in agriculture s production function and on the functional form that the agricultural production function should assume in the context of a computable general equilibrium model when land and intermediate inputs seeds and fertilizers as well as capital and labor are included modeling the agricultural sector can best be done in a more disaggregated format than simple cobb douglas or ces specifications after examining the transcendental logarithmic production function the paper proposes to adopt nested ces specifications on the basis of empirically observed elasticities of substitution

political jurisdictions in heterogeneous communities we investigate whether political jurisdictions form in response to the trade off between economies of scale and the costs of a heterogeneous population we consider heterogeneity in income race ethnicity and religion and we test the model using american school districts school attendance areas municipalities and special districts we find strong evidence of a trade off between economies of scale and racial heterogeneity we also find evidence of a trade off between economies of scale and income heterogeneity conversely we find little evidence that ethnic or religious heterogeneity shapes jurisdictions to clarify the direction of causality between heterogeneity and jurisdictions we exploit shocks to racial heterogeneity generated by the two world wars

the presence of target zone nonlinearities when narrower bands exist within official zones the presence of target zone nonlinearities is generally refuted in empirical research we argue that this may be due to estimation being performed vis a vis official limits when monetary authorities are in fact targeting a narrower band estimation results for the belgian and french franc confirm that nonlinearities are present when narrower zones are accounted for

stochastic devaluation risk and the empirical fit of target zone models in the model of this paper an exchange rate fluctuates between given boundaries for random lengths of time and jumps discretely when devaluation occur we provide explicit solutions for the stochastic processes followed by the exchange rate and by the expected rate of depreciation when the likelihood and the size of devaluations vary stochastically over time the model produces realistic patterns of covariation between exchange rates and interest rate differentials and provides interesting interpretations of available empirical evidence we also specify how to infer devaluation risk from target zone data

the size of countries does it matter borders are a man made institution and as such their shape cannot be taken as part of the physical landscape the size of countries is endogenous to politico economic forces this paper discusses recent efforts by economists to study three related questions what determines the evolution of the size of countries does size matter for economic success given the trend toward decentralization and of creation of supernational unions such as the eu is the meaning of national borders evolving jel h10

foreign exchange constraints and growth possibilities in the ldcs abstract we analyse the influence of foreign exchange constraints on output growth in the ldcs by studying the effect that these constraints have on the speed of adjustment of both investment and import activities we model the speed of adjustment of investment as a function of available foreign exchange resources and allow for imperfect substitutability between the domestic and the foreign capital stocks

target zones for exchange rates and policy changes abstract we extend a target zone model to allow for occasional changes in the stochastic process driving fundamentals a key implication is that seeming speculative attacks may be triggered by market perceptions that macroeconomic policy has switched say from tight to loose this fundamental based explanation for large exchange rate changes accompanied by no discernible contemporaneous change in the fundamental is an alternative to theories based on self fulfilling expectations without relying on intra marginal intervention this model is better able to reproduce empirical exchange rate distributions with more mass at the center and less at the edges of the band

terms of trade shocks and structural adjustment in a small open economy abstract a three sector three factor general equilibrium model of dutch disease is developed providing yet another explanation for the expansion of the manufacturing sector in most of the oil exporting countries and the concurrent decline in their agricultural sectors in the 1970s the sectoral structure of the oil exporting small open economy is altered by an increase in its national income the spending effect and in the world price of manufactured goods relative to agricultural products the world price effect while both effects undermine the agricultural sector the world price effect may offset the negative impact of the spending effect on the manufacturing sector resulting in its expansion the short run analysis is of the standard jones specific factors model in the long run the capital rental and the price of the non traded good are determined by world prices and the transfer argument for the dutch disease real appreciation the rise in the relative price of the non traded good due to higher income completely disappears also demand effects alter non traded and manufacturing output but have no impact on the agricultural sector the world price effect is the sole cause of the decline in the agricultural sector in the long run

on the number and size of nations this paper studies the equilibrium determination of the number of countries in different political regimes and in different economic environments with more or less economic integration we focus on the trade off between the benefits of large jurisdictions and the costs of heterogeneity of large and diverse populations our model implies that i democratization leads to secessions ii in equilibrium one generally observes an inefficiently large number of countries iii the equilibrium number of countries is increasing in the amount of economic integration

municipal incorporation in the united states this article empirically examines the formation of municipalities in the usa it traces change in unincorporated areas over decades to determine how basic dimensions of population heterogeneity aff

do formula based intergovernmental transfer mechanisms eliminate politically motivated targeting evidence from ghana abstract various countries have adopted formulas for determining intergovernmental transfers as a strategy to limit the role of political considerations in resource allocation in this paper we investigate a formula based system of allocating resources from a central government to local governments to determine whether the political characteristics of recipient areas have any bearing on their allocation specifically we study the sharing of resources of the district assemblies common fund dacf in ghana amongst the country s district governments over the period 1994 to 2005 we find evidence that the mechanism does not eliminate politically motivated targeting of the grants per capita dacf grants were higher in districts where vote margins in the previous presidential election were lower suggesting that swing districts were targeted we find evidence that dacf formula indicators and their weighting were chosen and amended to produce politically desired patterns of transfers

electoral rules and minority representation in u s cities of minority representation majorities tend to disenfranchise minorities through strategic manipulation of electoral rules with the aim of explaining changes in electoral rules adopted by u s cities particularly in the south we show why majorities tend to adopt winner take all city wide rules at large elections in response to an increase in the size of the minority when the minority they are facing is relatively small in this case for the majority it is more effective to leverage on its sheer size instead of risking conceding representation to voters from minority elected districts however as the minority becomes larger closer to a fifty fifty split the possibility of losing the whole city induces the majority to prefer minority votes to be confined in minority packed districts single member district rules serve this purpose we show empirical results consistent with these implications of the model in a novel data set covering u s cities and towns from 1930 to 2000

stagflationary effects of monetary stabilization policies a quantitative analysis of south korea this paper presents a macro model of the korean economy that focuses on short run macro economic adjustment and more in particular on the transmission channels of monetary policy between the financial and the real sector of the economy in addition to the usual link between monetary policy and aggregate demand via investment the link between monetary policy and the supply side of the economy via the financing of working capital with borrowed funds is incorporated this link can potentially reverse the short run impact of tight money on inflation and aggregate the impact on output both export prices and domestic prices show a significant sensitivity to cost of financing working capital this credit supply side link gives a stagflationary bias to restrictive credit policies the empirical relevance of this phenomenon is strongly supported by the simulation results derived with the model structurally section 2 of the paper focuses on the real sector part of the model section 3 discusses the financial sector in section 4 different monetary stabilization packages are simulated using the model presented in sections 2 and 3 and alternative policy measures are discussed the simulation runs show strong short run stagflationary effects of tight money policies

culture ethnicity and diversity we investigate the empirical relationship between ethnicity and culture defined as a vector of traits reflecting norms attitudes and preferences using surveys of individual values in 76 countries we find that ethnic identity is a significant predictor of cultural values yet that within group variation in culture trumps between group variation thus in contrast to a commonly held view ethnic and cultural diversity are unrelated we explore the correlates of cultural diversity and of the overlap between culture and ethnicity finding that the level of economic development is positively associated with cultural diversity and negatively associated with the overlap between culture and ethnicity finally although only a small portion of a country s overall cultural heterogeneity occurs between groups this does not imply that cultural differences between groups are irrelevant indeed we find that civil conflict becomes more likely when there is greater overlap between ethnicity and culture

bootstrapping financial time series it is well known that time series of returns are characterized by volatility clustering and excess kurtosis therefore when modelling the dynamic behavior of returns inference and prediction methods based on independent and or gaussian observations may be inadequate as bootstrap methods are not in general based on any particular assumption on the distribution of the data they are well suited for the analysis of returns this paper reviews the application of bootstrap procedures for inference and prediction of financial time series in relation to inference bootstrap techniques have been applied to obtain the sample distribution of statistics for testing for example autoregressive dynamics in the conditional mean and variance unit roots in the mean fractional integration in volatility and the predictive ability of technical trading rules on the other hand bootstrap procedures have been used to estimate the distribution of returns which is of interest for example for value at risk var models or for prediction purposes although the application of bootstrap techniques to the empirical analysis of financial time series is very broad there are few analytical results on the statistical properties of these techniques when applied to heteroscedastic time series furthermore there are quite a few papers where the bootstrap procedures used are not adequate