rural transformation inequality and the origins of microfinance abstract what determines the development of rural financial markets starting from a simple theoretical framework we derive the factors shaping the market entry of rural microfinance institutions across time and space we provide empirical evidence for these determinants using the expansion of credit cooperatives in the 236 eastern counties of prussia between 1852 and 1913 this setting is attractive as it provides a free market benchmark scenario without public ownership subsidization or direct regulatory intervention furthermore we exploit features of our historical set up to identify causal effects the results show that declining agricultural staple prices as a feature of structural transformation leads to the emergence of credit cooperatives similarly declining bank lending rates contribute to their rise low asset sizes and land inequality inhibit the regional spread of cooperatives while ethnic heterogeneity has ambiguous effects we also offer empirical evidence suggesting that credit cooperatives accelerated rural transformation by diversifying farm outputs

the political economy of linguistic cleavages article i nfo this paper uses a linguistic tree describing the genealogical relationship between all 6912 world languages to compute measures of diversity at different levels of linguistic aggregation by doing so we let the data inform us on which linguistic cleavages are most relevant for a range of political economy outcomes rather than making ad hoc choices we find that deep cleavages originating thousands of years ago lead to better predictors of civil conflict and redistribution the opposite pattern emerges when it comes to the impact of linguistic diversity on growth and public goods provision where finer distinctions between languages matter 2011 elsevier b v all rights reserved

on the salience of ethnic conflict ray acknowledges support from the national science foundation under grants 0421852 and 0617827 esteban is a member of barcelona economics xrea and is grateful for support from the generalitat de catalunya and the cicyt sej 2006 00369 this research is part of the polarization and conflict research project cit2 ct 2004 506084 funded by the european commission dg research sixth framework program

is there a link between globalisation and civil conflict this research has benefited from the financial support of the spanish ministry of economy and competitiveness projects eco2011 29314 c02 01 and eco2015 64330 p

estimation of farmers risk attitude an econometric approach abstract an econometric procedure for estimating arrow pratt coefficients of risk aversion is derived the model of farmers allocating land among different crops and time between leisure and labor allows for testing arrow s hypotheses of decreasing absolute risk aversion and increasing relative risk aversion the empirical results support these hypotheses

do giant oilfield discoveries fuel internal armed conflicts we use new data to examine the effects of giant oilfield discoveries around the world since 1946 on average these discoveries increase per capita oil production and oil exports by up to 50 percent but these giant oilfield discoveries also have a dark side they increase the incidence of internal armed conflict by about 5 8 percentage points this increased incidence of conflict due to giant oilfield discoveries is especially high for countries that had already experienced armed conflicts or coups in the decade prior to discovery

skill transferability migration and development evidence from population resettlement in indonesia we use a natural experiment in indonesia to provide causal evidence on the role of location specific human capital and skill transferability in shaping the spatial distribution of productivity from 1979 1988 the transmigration program relocated two million migrants from rural java and bali to new rural settlements in the outer islands villages assigned migrants from regions with more similar agroclimatic endowments exhibit higher rice productivity and nighttime light intensity one to two decades later we find some evidence of migrants adaptation to agroclimatic change overall our results suggest that regional productivity differences may overstate the potential gains from migration

the case for restricting fiscal policy discretion this paper studies the effects of discretionary fiscal policy on output volatility and economic growth using data for 91 countries we isolate three empirical regularities 1 governments that use fiscal policy aggressively induce significant macroeconomic instability 2 the volatility of output caused by discretionary fiscal policy lowers economic growth by more than 0 8 percentage points for every percentage point increase in volatility 3 prudent use of fiscal policy is explained to a large extent by the presence of political constraints and other political and institutional variables the evidence in the paper supports arguments for constraining discretion by imposing institutional restrictions on governments as a way to reduce output volatility and increase the rate of economic growth

does the human capital educational sorting debate matter for development policy if education increases human capital subsidizing education can generate economic growth and combat poverty estimates of its return suggest that education is a good social investment in sorting models the return reflects in part the information about productivity revealed by the worker s education thus the social and private returns diverge it might appear that if we believe the sorting model we should be less swayed by evidence that estimated returns to education exceed the social discount rate and therefore less likely to support education based development policies this conclusion is shown to be incorrect this abstract was borrowed from another version of this item

measuring the impact of fiscal policy in the face of anticipation a structural var approach empirical estimates of the impact of government spending shocks disagree on central issues such as the size of output multipliers and the responses of consumption and the real wage one explanation for the disagreement is that fiscal shocks are often anticipated due to misspecification of the information set anticipation effects may invalidate svar estimates of impulse responses we use economic theory to derive a fiscal svar estimator that is applicable when fiscal shocks are anticipated we study its properties and apply it to us data we fail to find evidence that anticipation effects overturn the existing findings from the fiscal svar literature despite years of intensive research the empirical literature on fiscal policy has yet to reach consensus on the macroeconomic impact of fiscal policy shocks disagreements concern central issues such as the size of output multipliers and the impact of government spending shocks on consumption and the real wage clearly such level of disagreement constrains our ability to give simple guidelines for the operation of one of the most important stabilisation policies a key empirical obstacle is the measurement of innovations to fiscal policy one strand of the literature employs structural vector autoregressive svar methods and achieves identification based on the presence of decision lags or sign restrictions

how large is the government spending multiplier evidence from world bank lending this paper proposes a novel method of isolating fluctuations in public spending that are likely to be uncorrelated with contemporaneous macroeconomic shocks and can be used to estimate government spending multipliers the approach relies on two features unique to many low income countries 1 borrowing from the world bank finances a substantial fraction of public spending and 2 actual spending on world bank financed projects is typically spread out over several years following the original approval of the project these two features imply that fluctuations in spending on world bank projects in a given year are in large part determined by fluctuations in project approval decisions made in previous years and so are unlikely to be correlated with shocks to output in the current year world bank project level disbursement data are used to isolate the component of public spending associated with project approvals from previous years which in turn can be used to estimate government spending multipliers in a sample of 29 aid dependent low income countries the estimated multipliers are small reasonably precisely estimated and rarely significantly different from zero

workers of the world unite franchise extensions and the threat of revolution in europe 1820 1938 abstract we test the hypothesis that the extension of the voting franchise in europe was related to the threat of revolution we contend that international diffusion of regime contention and information about revolutionary events happening in neighboring countries generate the necessary variation in the perceived threat of revolution using two samples of european countries covering the period from 1820 to 1938 we find robust evidence which is consistent with the threat of revolution hypothesis we also find some evidence that war triggered suffrage reform

holding on ethnic divisions political institutions and the duration of economic declines abstract we analyze the duration of large economic declines and provide a theory of delayed recovery we show theoretically that uncertain post recovery incomes lead to a commitment problem which limits the possibility of cooperation in ethnically heterogeneous countries strong constraints on the executive solve this problem by reducing the uncertainty associated with cooperative behavior we test the model using standard data on linguistic heterogeneity and detailed data on ethnic power configurations our findings support the central theoretical prediction countries with more constrained political executives experience shorter economic declines the effect is large in ethnically heterogeneous countries but virtually non existent in homogeneous societies our main results are robust to a variety of perturbations regarding the estimation method the estimation sample measures of heterogeneity and measures of institutions

an evaluation of does economic inequality breed political conflict studies contradictory findings that economic inequality may have a positive negative or no impact on political conflict are a puzzle for conflict studies three approaches have been used t o explain the inconsistent findings of the ei pc economic inequality political conflict nexus statistical modeling formal modeling and theory building because analysts have tended to possess different research skills these three approaches have been employed in isolation from one another singly however all three approaches have proved deficient and are unlikely to solve the ei pc puzzle the most fruitful approach is to combine the assumptions of the theory builders and the deductive approach of the formal modelers with the various empirical tests of the statistical modelers such an approach to the ei pc puzzle produces a crucial test of the deprived actor and rational actor theories of conflict the approach is also our best hope for solving the other long standing puzzles in conflict studies

do natural resources fuel authoritarianism a reappraisal of the resource curse a large body of scholarship finds a negative relationship between natural resources and democracy extant cross country regressions however assume random effects and are run on panel datasets with relatively short time dimensions because natural resource reliance is not an exogenous variable this is not an effective strategy for uncovering causal relationships numerous sources of bias may be driving the results the most serious of which is omitted variable bias induced by unobserved country specific and time invariant heterogeneity to address these problems we develop unique historical datasets employ time series centric techniques and operationalize explicitly specified counterfactuals we test to see if there is a long run relationship between resource reliance and regime type within countries over time both on a country by country basis and across several different panels we find that increases in resource reliance are not associated with authoritarianism in fact in many specifications we generate results that suggest a resource blessing

macroeconomic effects from government purchases and taxes for u s annual data that include world war ii the estimated multiplier for temporary defense spending is 0 4 0 5 contemporaneously and 0 6 0 7 over 2 years if the change in defense spending is permanent gauged by ramey s defense news variable the multipliers are higher by 0 1 0 2 since all estimated multipliers are significantly less than 1 greater spending crowds out other components of gdp particularly investment the lack of good instruments prevents estimation of reliable multipliers for nondefense purchases multipliers in the literature of two or more likely reflect reverse causation from gdp to nondefense purchases increases in average marginal income tax rates measured by a newly constructed time series have significantly negative effects on gdp when interpreted as a tax multiplier the magnitude is around 1 1 the combination of the estimated spending and tax multipliers implies that the balanced budget multiplier for defense spending is negative we have some evidence that tax changes affect gdp mainly through substitution effects rather than wealth effects

poverty political freedom and the roots of terrorism this article provides an empirical investigation of the determinants of terrorism at the country level in contrast with the previous literature on this subject which focuses on transnational terrorism only i use a new measure of terrorism that encompasses both domestic and transnational terrorism in line with the results of some recent studies this article shows that terrorist risk is not significantly higher for poorer countries once the effects of other country specific characteristics such as the level of political freedom are taken into account political freedom is shown to explain terrorism but it does so in a non monotonic way countries in some intermediate range of political freedom are shown to be more prone to terrorism than countries with high levels of political freedom or countries with highly authoritarian regimes this result suggests that as experienced recently in iraq and previously in spain and russia transitions from an authoritarian regime to a democracy may be accompanied by temporary increases in terrorism finally the results suggest that geographic factors are important to sustain terrorist activities this abstract was borrowed from another version of this item

history institutions and economic performance the legacy of colonial land tenure systems in india we analyze the colonial land revenue institutions set up by the british in india and show that differences in historical property rights institutions lead to sustained differences in economic outcomes areas in which proprietary rights in land were historically given to landlords have significantly lower agricultural investments and productivity in the post independence period than areas in which these rights were given to the cultivators these areas also have significantly lower investments in health and education these differences are not driven by omitted variables or endogeneity problems they probably arise because differences in historical institutions lead to very different policy choices

econometric estimation of producers risk attitudes general methods are proposed for the identification and econometric estimation of the parameters of the distribution of risk attitudes in a producer population the proposed methods also provide the basis for the development of statistical tests of model specification and of behavioral hypotheses econometric risk attitude estimation is shown to be possible under less restrictive conditions than previously believed a moment based version of the general model is applied to indian data and the econometrically estimated risk attitudes are presented and compared to experimental results for a similar group of producers

growth and violence argument for a per capita measure of civil war the economics literature typically uses counts of casualties as a measure of conflict intensity despite the fact that the units of observation vary considerably in population size when analysing the impact of conflict on economic growth the use of counts relies on the assumption that a given number of casualties affects large and small populations in the same way using within and between country evidence this paper demonstrates that this standard assumption can be rejected a per capita model of conflict intensity that captures local effects of violence provides a more consistent empirical framework for both between country and within country studies

the cycle of violence in the second intifada causality in nonlinear vector autoregressive models we contest jaeger and paserman s claim jaeger and paserman 2008 the cycle of violence an empirical analysis of fatalities in the palestinian israeli conflict american economic review 98 4 1591 1604 that palestinians did not react to israeli aggression during intifada 2 we address the differences between the two sides in terms of the timing and intensity of violence estimate nonlinear vector autoregression models that are suitable when the linear vector autoregression innovations are not normally distributed identify causal effects rather than granger causality using the principle of weak exogeneity and introduce the kill ratio as a concept for testing hypotheses about the cycle of violence the israelis killed 1 28 palestinians for every killed israeli whereas the palestinians killed only 0 09 israelis for every killed palestinian

conflict and distribution abstract we develop a behavioral model that links the level and pattern of social conflict to the societywide distribution of individual characteristics the model can be applied to groups that differ in characteristics such as wealth ethnicity religion and political ideology we settle questions of existence and uniqueness of conflict equilibrium conflict is seen to be closely connected with the bimodality of the underlying distribution of characteristics however in general the conflict distribution relationship is nonlinear and surprisingly complex our results on conflict patterns also throw light on the phenomena of extremism and moderation journal of economic literature classification numbers d63 d72 d74

from hyperination to stable prices argentina s evidence on menu cost models we review and extend several comparative statics results of xed menu cost models of price setting rms facing real idiosyncratic shocks such as the type studied by golosov and lucas 2007 as well as by many others these results are confronted with their empirical counterparts using the micro data underlying argentina s consumer price index for a time period where ination rates vary from almost 5000 per year

government investment and fiscal stimulus effects of government investment are studied in an estimated neoclassical growth model the analysis focuses on two dimensions that are critical for understanding government investment as a fiscal stimulus implementation delays for building public capital and expected fiscal adjustments to deficit financed spending implementation delays can produce small or even negative labor and output responses to increases in government investment in the short run anticipated fiscal adjustments matter both quantitatively and qualitatively for long run growth effects when public capital is insufficiently productive distorting financing can make government investment contractionary at longer horizons

ethnicity and conflict an empirical study this paper examines the impact of ethnic divisions on conict the empirical specication is informed by a theoretical model of conict esteban and ray 2011 in which equilibrium conict is related to just three distributional indices of diversity ethnic polarization ethnic fractionalization and a greenberg gini index constructed across ethnic groups our empirical ndings verify that these distributional measures are signicant correlates of conict the underlying theory permits us to use these results to make inferences about the relative importance of public goods in conict as well as the extent of within group cohesion in conictual activity these eects are further strengthened as we introduce country specic measures of group cohesion and the relative importance of public goods and combine them with the distributional measures exactly as specied by the theory

linking conflict to inequality and polarization in this paper we study a behavioral model of conflict that provides a basis for choosing certain indices of dispersion as indicators for conflict we show that a suitable monotone transform of the equilibrium level of conflict can be proxied by a linear function of the gini coefficient the herfindahl hirschman fractionalization index and a specific measure of polarization due to esteban and ray jel classification d74 d31

state capacity conflict and development the absence of state capacities to raise revenue and to support markets is a key factor in explaining the persistence of weak states this paper reports on an ongoing project to investigate the incentive to invest in such capacities the paper sets out a simple analytical structure in which state capacities are modeled as forward looking investments by government the approach highlights some determinants of state building including the risk of external or internal conflict the degree of political instability and dependence on natural resources throughout we link these state capacity investments to patterns of development and growth

wheat agriculture and family ties abstract several recent contributions to the literature have suggested that the strength of family ties is related to various economic and social outcomes for example alesina and giuliano 2014 highlight that the strength of family ties is strongly correlated with lower gdp and lower quality of institutions however the forces shaping family ties remain relatively unexplored in the literature this paper proposes and tests the hypothesis that the agricultural legacy of a country matters for shaping the strength of its family ties using data from the world values survey and the european values study the results show that societies with a legacy of cultivating wheat tend to have weaker family ties analysis at the sub national level us data and the country level corroborate these findings the estimations allow for alternative hypotheses which propose that pathogen stress and climatic variation can potentially also give rise to the formation of family ties the results suggest that the suitability of land for wheat production is the most influential factor in explaining the variation in the strength of family ties across societies and countries

can government purchases stimulate the economy this essay briefly reviews the state of knowledge about the government spending multiplier drawing on theoretical work aggregate empirical estimates from the united states as well as cross locality estimates i assess the likely range of multiplier values for the experiment most relevant to the stimulus package debate a temporary deficit financed increase in government purchases i conclude that the multiplier for this type of spending is probably between 0 8 and 1 5 jel e23 e62 h50

mean variance skewness portfolio performance gauging a general shortage function and dual approach this paper proposes a nonparametric efficiency measurement approach for the static portfolio selection problem in mean variance skewness space a shortage function is defined that looks for possible increases in return and skewness and decreases in variance global optimality is guaranteed for the resulting optimal portfolios we also establish a link to a proper indirect mean variance skewness utility function for computational reasons the optimal portfolios resulting from this dual approach are only locally optimal this framework permits to differentiate between portfolio efficiency and allocative efficiency and a convexity efficiency component related to the difference between the primal nonconvex approach and the dual convex approach furthermore in principle information can be retrieved about the revealed risk aversion and prudence of investors an empirical section on a small sample of assets serves as an illustration

rulers and the ruled patterned inequality and the onset of mass political violence the theory of patterned inequality between rulers and ruled provides a valuable analytic approach to the relationship between inequality and political violence under conditions of a bifurcated pattern of inequality the probability of political violence is likely to be greater than under a more generalized inequality typically measured by the gini index a strong systematic relationship between patterned inequality in latin american landholdings and deaths from political violence was discovered using the exponential distribution as a model for the lower portion of the land distribution and the log exponential for the upper this degree of association was far stronger than that found between the gini index of land inequality in latin america and deaths from political violence evidence supporting the theory was also found in an analysis of middle eastern landholdings

cultural diversity and economic growth evidence from the us during the age of mass migration we exploit the large inflow of immigrants to the us during the 1870 1920 period to examine the effects that within county changes in the cultural composition of the us population had on output growth we construct measures of fractionalization and polarization to distinguish between the different effects of cultural diversity our main finding is that increases in cultural fractionalization significantly increased output while increases in cultural polarization significantly decreased output we address the issue of identifying the causal effects of cultural diversity by using the supply push component of immigrant inflows as an instrumental variable

war and conflict in economics theories applications and recent trends we review the main economic models of war and conflict these models vary in details but their implications are qualitatively consistent highlighting key commonalities across a variety of conflict settings recent empirical literature employing both laboratory and field data in many cases confirms the basic implications of conflict theory however this literature also presents important challenges to the way economists traditionally model conflict we finish our review by suggesting ways to address these challenges

war signals a theory of trade trust and conflict we construct a dynamic theory of civil conflict hinging on inter ethnic trust and trade the model economy is inhabitated by two ethnic groups inter ethnic trade requires imperfectly observed bilateral investments and one group has to form beliefs on the average propensity to trade of the other group since conflict disrupts trade the onset of a conflict signals that the aggressor has a low propensity to trade agents observe the history of conflicts and update their beliefs over time transmitting them to the next generation the theory bears a set of testable predictions first war is a stochastic process whose frequency depends on the state of endogenous beliefs second the probability of future conflicts increases after each conflict episode third accidental conflicts that do not reflect economic fundamentals can lead to a permanent breakdown of trust plunging a society into a vicious cycle of recurrent conflicts a war trap the incidence of conflict can be reduced by policies abating cultural barriers fostering inter ethnic trade and human capital and shifting beliefs coercive peace policies such as peacekeeping forces or externally imposed regime changes have instead no persistent effects

non parametric estimation of decision makers risk aversion abstract a new non parametric method to estimate a decision maker s coefficient of absolute risk aversion from observed economic behaviour is explained the method uses the expected value variance e v framework and quadratic programming an empirical illustration is given using norwegian farm level data

inequality and insurgency maldistribution of land in agrarian societies is commonly thought to be an important precondition of mass political violence and revolution others argue that because of the difficulty of mobilizing rural populations for political protest land maldistribution is irrelevant except as part of an inegalitarian distribution of income nationwide these rival inequality hypotheses have significant implications with respect to the kinds of reforms likely to reduce the potential for insurgency in a society they are tested using the most comprehensive cross national compilation of data currently available on land inequality landlessness and income inequality support is found for the argument that attributes the greater causal import to income inequality moreover the effect of income inequality on political violence is found to hold in the context of a causal model that takes into account the repressiveness of the regime governmental acts of coercion intensity of separatism and level of economic development

state capacity and repression a model of colonial rule abstract state capacity in colonial regimes can have spillover effects on the welfare of citizens if the colonizer is removed this work shows that when spillovers are positive investments in state capacity and repression by the colonizer are strategic complements the colonizer needs a larger repression when state capacity is high because the latter increases the incentives of the colonized to rebel therefore determinants of investment in repression such as geographic factors or idiosyncratic features of the colonizer can affect state capacity this work contributes to explain the heterogeneous levels of state capacity in non settler colonies and has policy implications for present autocratic regimes

implications of an economic theory of conflict hindu muslim violence in india we model intergroup conflict driven by economic changes within groups we show that if group incomes are low increasing group incomes raises violence against that group and lowers violence generated by it we then apply the model to data on hindu muslim violence in india our main result is that an increase in per capita muslim expenditures generates a large and significant increase in future religious conflict an increase in hindu expenditures has a negative or no effect these findings speak to the origins of hindu muslim violence in post independence india

genetic diversity and the origins of cultural fragmentation despite the importance attributed to the effects of diversity on the stability and prosperity of nations the origins of the uneven distribution of ethnic and cultural fragmentation across countries have been underexplored building on the role of deeply rooted biogeographical forces in comparative development this research empirically demonstrates that genetic diversity predominantly determined during the prehistoric out of africa migration of humans is an underlying cause of various existing manifestations of ethnolinguistic heterogeneity further exploration of this uncharted territory may revolutionize the understanding of the effects of deeply rooted factors on economic development and the composition of human capital across the globe

fiscal policy in general equilibrium this paper studies four classic fiscal policy experiments within a quantitatively restricted neoclassical model the authors main findings are as follows 1 permanent changes in government purchases can lead to short run and long run output multipliers that exceed one 2 permanent changes in government purchases induce larger effects than temporary changes 3 the financing decision is quantitatively more important than the resource cost of changes in government purchases and 4 public investment has dramatic effects on private output and investment these findings stem from important dynamic interactions of capital and labor absent in earlier equilibrium analyses of fiscal policy copyright 1993 by american economic association

mafia and public spending evidence on the fiscal multiplier from a quasi experiment a law issued to combat political corruption and mafia infiltration of city councils in italy has resulted in episodes of large unanticipated temporary contractions in local public spending using these episodes as instruments we estimate the output multiplier of spending cuts at provincial level controlling for national monetary and fiscal policy and holding the tax burden of local residents constant to be 1 5 assuming that lagged spending is exogenous to current output brings the estimate of the overall multiplier up to 1 9 these results suggest that local spending adjustment may be quite consequential for local activity jel d72 e62 h71 k42 the widespread resort to fiscal stimulus at the onset of the global crisis and more recently the emerging need to consolidate deficits in response to rising fiscal imbalances have revitalized the empirical debate on the transmission of fiscal policy the multiplier while the literature has mostly focused on aggregate effects at a national level several recent contributions reviewed below have called attention to the local dimension this shift in focus is motivated by specific policy questions combined with the opportunity to exploit institutional information to address econometric issues in identification 1

cash or condition evidence from a cash transfer experiment this brief summarizes the results of a gender impact evaluation study entitled cash or condition evidence from a cash transfer experiment conducted from 2008 to the end of 2009 in malawi the study observed the impact of conditionality in cash transfer programs with two distinct interventions unconditional transfers uct arm and transfers conditional on school attendance cct arm targeted at adolescent girls in malawi on individual level dropout rates declined in both treatment arms however the uct arm is 43 percent as large as the cct arm the fraction of days attended in the cct arm is significantly higher than the uct cognitive ability math and english scores significantly improve for the cct but not for the uct probability of pregnancy and marriage were much lower in the uct arm the delays in marriage and fertility in the uct arm are found entirely among adolescent girls who dropped out of school after the start of the intervention improvements in human capital for the recipients of the cct are achieved at the cost of worse outcomes for people who drop out of school funding for the study derived from the global development network bill and melinda gates foundation national bureau of economic research nber africa project world bank research support budget grant world bank knowledge for change trust fund world development report 2007 small grants fund spanish impact evaluation fund and gender action plan trust fund

together or separate post conflict partition ethnic homogenization and the provision of public schooling abstract the partitioning of political jurisdictions is becoming an increasingly common component of agreements to end ethnic conflict although its impact on post conflict recovery remains unclear this paper studies the effects of the partition which ended the 1992 1995 bosnian war on the post war provision of public schooling i find that partitioned municipalities provide 58 more primary schools and 37 more teachers per capita driven mainly by convergent preferences for ethnically oriented schools however this arrangement delivers distributional consequences in partitioned municipalities ethnic majority children are more likely to complete primary schooling while for ethnic minority children it is the opposite

economic backwardness and social tension we propose that relative economic backwardness contributes to the build up of social tension and non violent and violent conflict we test our hypothesis using data on organized mass movements and armed civil conflict the findings show that greater economic backwardness is consistently linked to a higher probability of onset of violent and especially non violent forms of civil unrest we provide evidence that the relationship is causal in instrumental variables estimations using new instruments including mailing speeds and telegram charges around 1900 the magnitude of the effect of backwardness on social tension increases in the two stage least squares estimations

elections ethnicity and political instability this article provides a new perspective on the impact of elections on violent political instability in ethnically divided states a number of scholars argue that elections may provoke large scale violence in ethnically divided states in this article we theorize that elections have a pacifying effect in the most ethnically fractionalized countries as they reduce endemic uncertainty and encourage coalition building lowering the rate at which electoral losers discount the future probit regressions using cross national data for the period 1960 2010 support the notion that instability onsets are less likely in ethnically fractionalized states during election periods and especially in the year after a national election

a contest success function for networks abstract this paper models conflict as a contest within a network of friendships and enmities we assume that each player is either in a friendly or in an antagonistic relation with every other player and players compete for winning by exerting costly efforts we axiomatically characterize a success function which determines the win probability of each player given the efforts and the network of relations in an extension we allow for varying intensities of friendships and enmities this framework allows for the study of strategic incentives and friendship formation under conflict as well as the application of stability concepts of network theory to contests

fractionalization polarization and economic growth identifying the transmission channels in this article we examine empirically both the direct and indirect links between ethnic fragmentation and economic growth we find that both ethnic fractionalization and polarization are negatively associated with growth if considered in isolation an effect that is though primarily attributed to their link to other growth related activities i e investment conflict control of corruption fertility we study the corresponding transmission channels and calculate their relative importance in explaining a development curse based on ethnic diversity for both measures of ethnic fragmentation we find the corruption channel to be the most important one

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