black market exchange rate and the productivity bias hypothesis abstract previous studies that tested the productivity bias hypothesis employed the official nominal exchange rate in constructing the real rate hence in testing the productivity bias hypothesis in this paper we show that if official real exchange rate does not support the productivity bias hypothesis the real black market rate does this conjecture is tested by using data from chile colombia and costa rica

democracy and macroeconomic performance in underdeveloped countries an empirical analysis in this study the author examines how inflation and economic growth differ in more and less democratic regimes and in new and mature democracies the analysis is based on a panel research design featuring annual data from a large sample of underdeveloped countries and two way fixed effects regression analysis the author s central finding is that more democratic countries have higher inflation and slower growth than less democratic countries inflation apparently is higher than more democratic countries mainly because they have higher fiscal deficits and faster wage growth this higher inflation marginally reduces economic growth in these countries the author also finds that new and mature democracies do not have significantly different inflation and growth rates the findings suggest that unrestrained political participation and the resulting demands placed on state officials undermine democratic performance

democracy and economic growth a meta analysis despite a sizeable theoretical and empirical literature no firm conclusions have been drawn regarding the impact of political democracy on economic growth this article challenges the consensus of an inconclusive relationship through a quantitative assessment of the democracy growth literature it applies meta regression analysis to the population of 483 estimates derived from 84 studies on democracy and growth using traditional meta analysis estimators the bootstrap and fixed and random effects meta regression models it derives several robust conclusions taking all the available published evidence together it concludes that democracy does not have a direct impact on economic growth however democracy has robust significant and positive indirect effects through higher human capital lower inflation lower political instability and higher levels of economic freedom democracies may also be associated with larger governments and less free international trade there also appear to be country and region specific democracy growth effects overall democracy s net effect on the economy does not seem to be detrimental

the penn balassa samuelson effect through the lens of the dependent economy model abstract the positive correlation between per capita income and cross country price levels is called the penn balassa samuelson effect the most influential explanation of this effect centers around sectoral output productivities as the determinant of the relative price of nontraded goods the interaction between the change in relative prices and the change in per capita income the dynamic pbs effect is less well known this paper extends the turnovsky and sen 1995 model of a small open economy by adding external economies into the production function the model s dynamics accord well with several features of the empirical data on the dynamic pbs effect

the two freedoms economic growth and development an empirical study log linear methods are applied to categorical data containing economic freedom political freedom the level of income and the rate of economic growth for a panel of about 100 countries from 1975 to 1992 the main results are given economic freedom the rate of economic growth is independent of political freedom and the level of income given the level of income political freedom is independent of economic freedom and the growth rate the analysis suggests the fundamental effects of economic freedom in fostering economic growth and a high level of income as the condition of a high degree of political freedom

inequality aversion and the natural rate of subjective inequality abstract this paper analyzes inequality aversion across countries and identifies factors which explain the empirical heterogeneity observed across these countries we do this by hypothesizing a natural rate of subjective inequality across countries and solving for the explicit country specific value of the inequality aversion parameter that is consistent with the hypothesized natural rate we present evidence consistent with the existence of a natural rate of subjective inequality by verifying that countries with low high tolerance for inequality have low high inequality as measured by the gini coefficient as well finally we explore the socio economic factors that are consistent with observed differences in inequality aversion across these countries finding important effects of female empowerment public education expenditures per capita income economic growth and population size

a reexamination of balassa s productivity bias hypothesis rency by ri s the price level in country i by pi and the price level in the united states by pu s the ppp theory postulates that ri u s pi pu s many studies have tried to verify whether exchange rates follow the path outlined by the ppp equation the empirical results at best are inconclusive for example j a frenkel tested the ppp by drawing data from the 1970s and showed that the ppp failed on the other hand n davutyan and j pippenger criticized frenkel s work and reversed his conclusion 2 both studies used ordinary least squares and two stage least squares methods even recent studies that have used a relatively modern econometric technique cointegration analysis have mostly rejected the ppp 3 several reasons have been given in the literature for the failure of the ppp or deviation of the ppp based exchange rates from equilibrium exchange rates including lack of free trade existence of transaction costs existence of nontradables simultaneity problems different weights used in constructing different national price indexes money and asset prices and real factors or real variables among the real variables the productivity differential between two countries has received most of the attention in the literature if we denote the market determined equilibrium exchange rate by re and the ppp based rate by pi pu s following the literature we

real and monetary determinants of real exchange rate behavior theory and evidence from developing countries abstract this paper develops a dynamic model of real exchange rate rer behavior in developing countries a three goods economy exportables importables and non tradables is considered residents of this country hold domestic and foreign assets and there is a dual exchange rate regime there is a government that consumes importables and non tradables a distinction is made between equilibrium and disequilibrium movements of the rer the determinants of real exchange rate misalignment are studied with emphasis placed on the role of devaluations and balance of payments crises the implications of the model are tested using data for 12 developing countries the results obtained are generally favorable for the model the issue of rer stationarity is also analyzed

new evidence on the relationship between democracy and economic growth it is often maintained that democracy is a luxury which comes at a price in terms of subsequent slower increases in national living standards however various recent cross section studies on economic growth have found evidence that lack of civil and political liberties is negatively correlated with economic growth using a new measure of democracy which is based upon the number of years that a country can be regarded as a democracy the robustness of this relationship is examined both direct and indirect effects of lack of democratic liberties are analysed our main conclusion is that the relationship between democracy and economic growth is not rubust

international evidence on tradables and nontradables inflation abstract using 1970 1985 sectoral data for the oecd we find that inflation in nontradable goods exceeds inflation in tradables we identify a demand shift towards nontradables and faster growth of total factor productivity in the tradable goods sector as the prime causes of the differential inflation in addition disinflation attempts and the exchange rate regime appear to have exerted significant influence on the relative inflation rate

a model of real national price levels this paper is concerned with the price level in the sense used in a recent paper by kravis and lipsey entitled toward an explanation of national price levels 15 the price level of a particular country relative to the base country is defined as the ratio of the purchasingpower parity ppp to the exchange rate it has become generally recognized that the ppp need not equal the exchange rate even in long run free trade equilibrium and the explanation of the discrepancy is a natural subject of scientific interest there is a voluminous literature on temporary deviations of ppp from the exchange rate that are explained in terms of monetary disturbances and random shocks there is a much smaller literature on long run or structural factors that explain why ppp does not coincide with the exchange rate the present paper falls in the second category we shall assume the economy is in monetary and balance of payments equilibrium the term price level as used in kravis and lipsey 15 may be confusing because that term usually refers to the price of goods in terms of money the term real price level seems more appropriate in that the concept refers to a ratio of two prices the real price level is what the tourist has in mind when he goes to a poor country and remarks my but prices are low here a major feature of the existing literature on long run or structural explanations of the real price level is the emphasis on the distinction between tradables and nontradables it is typically assumed that the law of one price holds for tradables but not for nontradables which are dominated by services the productivity differential model as stated by balassa 2 for example assumes that international differences in labor productivity are greater in commodities tradables than in services it follows that services will be relatively cheap in poor low productivity countries and that consequently the real price level relative to a base country will rise with per capita income recently bhagwati 5 has shown that the low relative price of services in poor countries can be explained by a capital labor model without recourse to the assumption that production functions differ internationally in bhagwati s model rich countries export capital intensive commodities and poor countries export labor intensive commodities but even though commodity prices are equalized through trade complete specialization prevents factor prices from being equalized since services are assumed to be labor intensive relative to any commodity they are cheaper in poor countries than in rich countries

explaining service price differences in international comparisons this paper reexamines observed international differences in the price of services and the positive correlation of these with per capita gdp differences using a general trade model with a nontraced sector the authors find that differences in countries factor endowments populations trade policies and trade balances will have ambiguous and sometimes opposite effects on their service prices and real incomes estimating the service price equation using recent data suggests that larger endowments of agricultural land minerals and capital larger trade deficits and higher prices for tradables increase service prices conversely larger populations and labor forces reduce service prices copyright 1991 by american economic association

purchasing power parity in less developed and transition economies a review paper abstract the concept of purchasing power parity ppp has been the subject of numerous studies many of which have been unable to prove conclusively this core principle of international finance although industrialized countries have received most of the attention studies that focus on less developed and transition economies have also attained mixed results this study surveys trends in this branch of the literature highlighting the econometric advances that have sought to solve this puzzle while pointing out that more needs to be done to address the reasons that might cause ppp not to hold

credibility of rules and economic growth a business environment characterized by incredible rules such as unclear property rights constant policy surprises and reversals uncertain contract enforcement and high corruption most likely translates into lower investment and growth the literature on growth and policies has suggested different ways to measure the relevant uncertainties this article proposes a new measurement approach based on firm level surveys and an indicator of the credibility of rules using data from a private sector survey conducted in 73 countries and covering more than 3 800 enterprises standard cross country growth and investment analysis indicates that low credibility of rules is associated with lower rates of investment and growth the survey was designed to capture local entrepreneurs views of the predictability of changes in laws and policies of the reliability of law enforcement of the impact of discretionary and corrupt bureaucracies and of the danger of policy reversals due to changes in governments conf

productivity differentials the relative price of non tradables and real exchange rates abstract this paper reconciles the apparent contradiction between recent panel unit root tests of real exchange rates and the productivity differential model proposing an alternative view that explains the coexistence of such findings real exchange rates and the relative price of non tradables reflect the gradual adjustment of mean reverting and endogenously competing factors supply and demand shocks as well as traded goods arbitrage granger causality and variance decomposition results indicate substantial simultaneity and feedback effects between real exchange rates the relative price of non tradables and productivity differentials

the political economy of growth democracy and human capital democracy is more than just another brake or booster for the economy we argue that there are significant indirect effects of democracy on growth through public health and education where economists use life expectancy and education as proxies for human capital we expect democracy will be an important determinant of the level of public services manifested in these indicators in addition to whatever direct effect democracy may have on growth we predict an important indirect effect through public policies that condition the level of human capital in different societies we conduct statistical investigations into the direct and indirect effects of democracy on growth using a data set consisting of a 30 year panel of 128 countries we find that democracy has no statistically significant direct effect on growth rather we discover that the effect of democracy is largely indirect through increased life expectancy in poor countries and increased secondary education in nonpoor countries t he relationship between democracy and economic growth has received considerable attention in recent years as yet however there is no consensus among analysts on the relationship between these two widely studied variables sound theoretical positions have been advanced suggesting that democracy is both an impediment and facilitator of growth careful quantitative tests of the relationship have produced contradictory results in our view existing studies fail to develop an adequate political theory of growth and as a result their empirical models are typically misspecified with competing arguments on both sides of the question many analysts merely add a variable for democracy to existing economic models and then look at the sign of the coefficient and its significance this is inadequate democracy is more than just another brake or booster for the economy we argue that there are important indirect effects of democracy on growth that are manifested through public health and education where economists typically use life expectancy and secondary school enrollment as proxies for human capital we expect that democracy will itself be an important determinant of the level of public services captured in these indicators thus in

why are services cheaper in the poor countries in their important work on international comparisons of national incomes and of comparative price structure kravis heston and summers i982 p 8 have noted that services are much cheaper in the relative price structure of a typical poor country than in that of a rich country this phenonomen has been documented now fairly systematically by the data gathered under their guiding hand of the united nations international comparison icp which covers 34 countries table i reproduced from their work i982 and fig i based on rows 3 and ii 13 indeed show this tendencyfor the relationship between relative service prices and real per capita gdp in this kravis heston summers 34 country 6 group sample the tendency is strongly evident except for the intermediate groups iii and iv

productivity bias hypothesis and the purchasing power parity a review article abstract productivity differentials among countries are said to be one of the major sources that contribute to the deviation of the purchasing power parity based exchange rate from the equilibrium rate hence the productivity bias hypothesis prior to last review article on the productivity bias hypothesis in 1976 almost all studies relied upon cross sectional regression analysis since then two groups of empirical studies have emerged while one group has employed time series data the other one has used panel data these two later groups have provided more support to the hypothesis than the earlier cross sectional studies this paper reviews and criticizes each group separately and provides tables that summarize main features of each study

seigniorage and political instability the importance of seigniorage relative to other sources of government revenue differs markedly across countries this paper tries to explain this regularity by studying a political model of tax reform the model implies that countries with a more unstable and polarized political system will have more inefficient tax structures and thus will rely more heavily on seigniorage this prediction of the model is tested on cross sectional data for seventy countries the authors find that after controlling for other variables political instability is positively associated with seigniorage copyright 1992 by american economic association

foreign aid and statehood in africa has foreign aid destroyed state institutions in africa african states depend on development assistance to conduct basic government operations yet few of these states are well governed or effective at providing public goods the two trends mounting foreign aid and static or diminishing state performance raise an obvious question is aid dependency contributing to misrule and state failure in africa many critics argue the two phenomena are related i find they are not my analysis fails to show a negative association between aid receipts and two measures of democracy and economic freedom instead the evidence is consistent with a small positive relationship between aid and these indicators of state performance since the international community seems bent on reducing foreign aid an important issue is how african states can maintain and improve their performance with less foreign assistance

the institutional framework and economic development the compound growth rates of per capita output and farrell type efficiency measures for 115 market economies over the period 1960 80 were compared with measures of political civil and economic liberty it was found that the institutional framework has significant and large effects on the efficiency and growth rate of economies politically open societies which subscribe to the rule of law to private property and to the market allocation of resources grow at three times the rate and are two and one half times as efficient as societies in which these freedoms are abridged

structural determinants of real exchange rates and national price levels some empirical evidence contrary to the long held notion of purchasing power parity ppp economists have found systematic evidence that the general level of prices across countries at a point in time varies dramatically irving b kravis alan w heston and robert summers 1982 for example report that some countries national price levels are no more than one third the u s price level extensions of this work show that such departures from ppp have persisted for decades recently efforts have been made to explain systematically these persistent or structural departures from ppp pioneering work by kravis and robert e lipsey 1983 1987 1988 has demonstrated that a positive correlation between the price level and real per capita gross domestic product is robust across numerous cross sectional specifications for instance using data from kravis et al 1982 table 6 12 87 percent of the variation in national price levels pl of 21 countries in 1975 is explained by per capita gdp y and a constant

equity estimation and assessing market response a rejoinder in a recent article wildt 1993 evaluates our previously proposed equity estimator krishnamurthi and rangaswamy 1987 based primarily on an analysis of the two variable case he concludes that there does not seem to be sufficient evidence to recommend the use of the equity estimation procedure for market response estimation p 450 we show that wildt s results are incomplete and his conclusions inaccurate using additional simulations conducted specifically for this study we show that under the conditions explored by wildt equity in fact performs substantially better than ordinary least squares ols we describe our results by focusing on the four variable case which provides a more comprehensive context for evaluating the estimators than the two variable case considered by wildt the two variable case imposes severe restrictions on the performance of biased estimators we proposed the equity estimator to provide market researchers with a method that in a single finite sample under conditions of multicollinearity will typically yield parameter estimates closer to the true parameters than the ols estimates because of the decision making context of marketing research we use mean squared error mse as the primary criterion to evaluate the estimators wildt emphasizes the values of average estimated coefficients when reporting his simulation results this provides a mis

government and economic growth in the less developed countries an empirical study for 1960 1980 adam smith founded modern economics with a powerful argument that free markets are the best route to prosperity and economic growth his conclusion has been studied and debated by economists ever since including nobel prize winners friedman hayek kuznets lewis myrdal and schultz whatever economists have concluded since world war ii the majority of the less developed countries seem to have opted for extensive government regulation of the private sector and for a large public sector has the large government role slowed or accelerated the growth of ldcs obviously this is an important issue this study looks at government expenditure revenue raising and regulation greater emphasis is put on expenditure because 1 the revenue raised is presumably a function of the level of expenditure and 2 there are few internationally comparable measures of regulation there are virtually no empirical studies of the general impact of government on economic growth an extensive literature search turned up only three papers gemmell analyzed the impact of nonmarket sector growth on various measures of macroeconomic performance for 27 ldcs and developed countries for 1960 and 1970 he drew no general conclusions about the relation between the size of the nonmarket sector and economic growth marsden found a negative relation between tax gdp ratios and economic growth for a cross section of 20 ldcs and developed countries for the 1970 79 period 2 i found a negative relationship between the share of government consumption expenditure in gdp and the growth of per capita gdp for a cross section of 96 ldcs and developed countries over various time periods between 1961 and 1976 3 this paper extends the approach used in my 1983 article

real exchange rates ppp and the relative price of nontraded goods the purchasing power parity hypothesis ppp states that nominal exchange rates move with differences in relative prices between economies the theory has received considerable attention in the economic literature since cassell 6 and is the foundation of many long run theoretical hypotheses in international finance yet its empirical validity remains in question many tests of ppp focus on the stationarity of the real exchange rate the nominal exchange rate adjusted for changes in price levels between economies if domestic and foreign price levels and the nominal exchange rate are integrated then cointegration between these variables implies the existence of both a long run equilibrium relationship and ppp the residual the real exchange rate then follows a stationary process the paper uses the multivariate cointegration methodology of johansen 16 and johansen and juselius 17 18 to examine the source of real exchange rate nonstationarity is the nonstationarity due to shifts in the domestic and foreign price of nontradeables or productivity differentials between traded and nontraded sectors or is the nonstationarity a possible outcome of difficulties in intercountry comparisons of prices movements associated with construction of these price indices most research finds the real exchange rate follows a nonstationary process due to the presence of a unit root 8 12 1 9 19 27 however the existence of a variable trend in the real exchange rate does not imply the absence of a long run relationship between relative prices levels and nominal exchange rates for two reasons first a long run relationship between price levels and nominal exchange rates may exist but not the one for one relationship implicit in the calculation of real exchange rates due to measurement differences in the construction of price indices between economies second ppp violations may occur due to the presence of permanent productivity innovations which affect the relative price of nontradeables if these shocks are not represented by measurable variables a cointegrating relationship will not exist the paper constructs traded and nontraded gdp price indices and productivity rates for 14 oecd economies and tests 1 if the variable trend the nonstationary process in the real exchange rate is due to permanent innovations in relative price of domestic and foreign nontradeables 2 if long run ppp violations are due to permanent movements in the relative price of nontradeables 3 if the nonstationarity in the real exchange rate is due to permanent innovations in domestic and foreign productivity differentials between the traded and nontraded sectors 4 if the variable trend in the relative price of nontradeables is due to permanent innovations in productivity between sectors lastly the paper constructs a cointegrating error correction model

purchasing power parities and exchange rates in latin america purchasing power parity ppp studies in recent years have revealed clearly that international comparisons of real income based on exchange rate conversions are very misleading indicators of standards of living there is no question that ppps provide the conceptually appropriate conversions of national accounts statistics from one currency to another and recent studies have shown that ppps deviate substantially from exchange rates 1 stimulated in part by the appearance of new bodies of data economists have recently renewed their interest in theoretical explanations of the long term or structural deviations of ppps from exchange rates the empirical tests of these models have been conducted almost entirely with data from the international comparisons project icp the purpose of the present paper is to test some of these models with a body of data collected by eciel for some latin american countries in 1970 2 this sample can also be combined with the phase 1 1970 sample of the icp to put this empirical study in context i shall first review briefly the theoretical and empirical literature on deviations of exchange rates from absolute ppps then i shall proceed to the empirical procedures and findings

losers and winners in economic growth this paper examines the growth rates in 116 economies from 1965 to 1985 it finds that the lowest quintile had an average growth rate of real gross domestic product gdp per capita of 1 3 percent whereas the highest quintile averaged 4 8 percent the authors isolate five influences that discriminate reasonably well between slow and fast growers a conditional convergence effect whereby a country grows faster if it begins with lower real gdp per capita in relation to its initial level of human capital in the forms of educational attainment and health a positive effect on growth from a high ratio of investment to gdp although this effect is weaker than that reported in some previous studies a negative effect from excessively large government a negative effect from government induced distortions of markets and a negative effect from political instability overall the fitted growth rates for eighty five economies for 1965 85 had a correlation of 0 8 with the actual values the authors also find that female educational attainment has a pronounced negative effect on fertility whereas female and male attainment are each positively related to life expectancy and negatively related to infant mortality

the determination of the real exchange rate the productivity approach abstract this paper explains deviations of exchange rates from purchasing power parity with the differences between countries of the relative growth rates of labor productivity between traded and nontraded sectors two cases are considered germany and japan versus their respective major trading partners the results show that the time series methodology yields a more favorable confirmation of the productivity differential model than the cross section regressions in the literature

the equity estimator for marketing research we introduce a new biased estimator called the equity estimator to estimate parameters of linear models in the presence of multicollinearity we then employ a comprehensive simulation methodology to evaluate ols the equity estimator and a particular form of the ridge estimator which has received some attention in the statistical literature we show that both equity and ridge perform significantly better than ols on a variety of performance measures over most of the parameter space the equity estimator does much better than the ridge estimator on the squared error criterion on other criteria the equity estimator performs marginally better than ridge in particular equity does well when the degree of multicollinearity among the explanatory variables is high and or the r2 of ols for the sample is less than 0 7 conditions frequently encountered in marketing research we discuss how the results of this study can be used by marketing researchers in choosing an appropriate estimator for their particular application

the impact of reference price effects on the profitability of price promotions this paper investigates the impact of reference price effects on retailer price promotions and describes why these effects can make promoting profitable first we analyze the profit impact of reference price effects generated by a single period of promotion the promotion can increase profit if the gain that these effects create in the promotion period outweighs the loss they create in future periods we then describe how retailers can estimate the optimal strategy of recurring promotions that maximizes profits from reference price effects over a time horizon examples of such strategies are presented for a retailer selling a national brand of peanut butter we obtain insights into how promotion prices timing and profits are affected by changes in costs interest rates consumers reactions to reference price effects and error in estimates used in the model the retailer s optimal reaction to a trade deal is also examined this strategy involves a phase of increased promotion activity sandwiched between phases of decreased activity we explain these results using the effects described in the single period model

the institutional environment for infrastructure investment the empirical evidence that links political institutions to economic outcomes has grown dramatically in recent years however virtually all of this analysis is undertaken using data from the past three decades this paper extends this empirical framework by performing a two century long historical analysis of the determinants of infrastructure investment in a panel of over 100 countries the results demonstrate that political environments that limit the feasibility of policy change are an important determinant of investment in infrastructure copyright 2002 oxford university press

political sources of growth a critical note on measurement this note critically reviews the research on the link between political systems and economic growth empirical attempts to capture this patent relationship have been met with mixed success we conclude that the political variables used in these studies i e democracy and political instability do not adequately reflect the investors problem we suggest that a political variable that encompasses all kinds of potential discretionary state interventions would be more effective in explaining cross country differences in economic growth

the consequences of regime type for public policy outputs most research has shown little association between regime type and public policy outputs in this article we employ a multivariate model and year by year data from 1960 1980 in latin america to analyze the relationship among regime type regime age and public policy the analysis shows regime type to be significantly associated with policy in five areas with regime age have an additional independent effect in several of these areas

regional inflation spatial locations and the balassa samuelson effect evidence from japan we empirically analyse regional inflation using data from japan where there is no regulation to impede the free movement of labour capital goods and services across regions in particular our analysis will focus on the geographical location of regions and the productivity known as the balassa samuelson bs effect as explanations for the dynamics of regional inflation based on a spatial model which is consistent with the theoretical specification of the bs we have confirmed that while it is a relatively small country in terms of land area both spatial location and productivity are important determinants of regional inflation

on hierarchical spatial competition in this paper we consider a hierarchical model of spatial electoral competition with two dominant players incumbents and one entrant the incumbents engage in a non cooperative game against each other and act as stackelberg leaders with respect to a vote maximizing entrant we prove that the equilibrium of this game called a hierarchical equilibrium exists and is unique for an arbitrary single peaked distribution of voters ideal points moreover we fully characterize the set of equilibrium strategies and show its equivalence to the set of strategies generated by a perfect foresight equilibrium most of the recently developed models of entry in oligopolistic markets and the theory of political competition deal with the case of dominant firms or parties which face a threat of potential entry these models possess a number of features on which they may be compared and contrasted the most important of these features are the ways in which the existing parties or firms compete against each other for votes or profits and types of expectations the incumbents have about the responses of potential entrants to changes in their decisions in most of the cases an electoral or oligopolistic competition is represented by some type of a non cooperative game played by parties or firms in this paper we also consider a non cooperative model of electoral race where the established parties incumbents compete against each other by offering positions ideologies to the population of voters given the profile of voters preferences over the space of ideologies or issue space each of the established parties attempts to maximize its vote share in making their choices the incumbents however anticipate that a new party an entrant will join the electoral race consistent with the other parties objectives the entrant is assumed to maximize its share of voters while taking the incumbents choices as given the resulting non cooperative game possesses therefore a structural hierarchy the established parties behave as nash players with respect to each other whereas acting as stackelberg leaders with respect to the entrant and correctly anticipating its vote maximizing response to their choices in the issue space the main purpose of this paper is to study the properties of the game we described and in particular to characterize its equilibrium which we will call hierarchical equilibrium naturally some assumptions are needed in order to guarantee the existence of the equilibrium we assume that there are two established parties the issue space i is the uni dimensional interval all voters have symmetric single peaked peaked preferences over i and the distribution of the voters ideal points is represented by a quasi concave continuous density function under these rather mild assumptions we are able to prove the existence and uniqueness of the hierarchical equilibrium and to completely

estimating long run economic equilibria with stochastic trends an asymptotic theory is provided to analyze a menu of currently existing estimators of cointegrated systems we study in detail the single equation ecm seecm approach of hendry our theoretical results lead to prescriptions for empirical work such as specifying seecm s nonlinearly and including lagged equilibrium relationships rather than lagged differences of the dependent variable as covariates simulations support these prescriptions and point to problems of overfitting not encountered in the semiparametric approach of phillips and hansen 1990

political variables in cross country growth analysis the recent boom in cross country growth analysis has renewed the empirical interest in political sources of economic growth a large number of studies have tested political variables in growth regressions and a very heterogenous set of variables has been proposed to measure economically relevant differences in the political systems of countries this paper distinguishes five categories of relevant political variables democracy government stability political violence policy volatility and subjective perception of politics for each of these categories the specification testing method and results of the most relevant studies are presented and are critically discussed the paper concludes that measures of democracy are least successful and measures of policy volatility and subjective perception of politics most successful as explanatory variables in cross country growth regressions