currency and credit in a private information economy in an environment with private information spatial separation and limited communication a currency like object and more standard named credits can be distinguished the credit objects can be used among agents in an enduring relationship that is among agents with known trading histories whereas the currency like object must be used among relative strangers in this environment collectively determined pareto optimal rules make the level of the currency like object and the mix of currency to named credits responsive to individual needs and to economywide states total indebtedness is determined by the number of lenders that is by preference or demand shocks and the mix of currency to credits is determined by transaction patterns among the agents

preferences for proxy attributes a proxy attribute is an indirect measure of an ultimate decision objective keeney and raiffa keeney r l h raiffa 1976 decisions with multiple objectives preferences and value tradeoffs john wiley new york argued that assessing utility functions over proxy attributes requires complex inferences that may exceed the human capacity for consistent judgment thus biasing utility assessments this hypothesis was tested in an experimental study of preferences for pollution control alternatives each decision maker made two sets of utility assessments the first regarding outcomes described by the fundamental attributes pollution control cost and pollution related illness the second regarding outcomes described by the fundamental attribute pollution control cost and the proxy attribute pollution emissions level which served as an indirect measure of illness the subjects displayed a near universal bias to overweight the proxy attribute relative to the prescriptions of expected utility theory the bias was large resulting in a substantial loss of expected utility in a simulated policy decision making scenario to account for this bias we developed three heuristic models of preferences for proxy attributes the best guess worst case and relative importance models the results strongly favored the relative importance model according to which decision makers assess scaling constants by relying on general attitudes regarding the relative importance of different decision objectives rather than on well articulated preferences for rates of substitution between pairs of attributes

money is privacy an extensive literature in monetary theory has emphasized the role of money as a record keeping device money assumes this role in situations where using credit would be too costly and some might argue that this role will diminish as the cost of information and thus the cost of credit based transactions continues to fall in this paper we investigate another use for money the provision of privacy that is a money purchase does not identify the purchaser while a credit purchase does in a simple trading economy with moral hazard the efficiency of money is compared with that of credit and we find that money may be useful even when information is free

does institutional quality matter for trade institutional conditions in a sectoral trade framework summary this article examines the extent to which national institutional quality affects bilateral sectoral trade flows as well as whether the conditioning role of institutions for trade has been waxing or waning with time based on a new trade theory framework we derive a sectoral gravity equation including novel variables corresponding to the exporter s labor competitiveness levels along with importer s price indices and sectoral incomes and analyze industry specific bilateral trade flows of 186 countries for the period 1996 2012 we address potential endogeneity and econometric drawbacks by means of the poisson pseudo maximum likelihood estimation methods the results indicate that both the institutional conditions at destination and the institutional distance between exporting and importing countries are relevant factors for bilateral trade moreover the effect associated with institutional conditions at destination moderately increases over time this is a robust outcome across economic sectors with higher values for agriculture and raw materials than for manufacturing and services

market access conditions and sub saharan africa s exports diversification summary despite some progress in the last decade sub saharan africa s participation in the global economy remains generally limited and poorly diversified among the various reasons behind the lack of competitiveness of sub saharan africa exports this paper analyzes whether changes in market access conditions affect export diversification the findings of this paper indicate that market access conditions remain important and that the presence of trade relationships depends not only on favorable market access conditions but also on how these compare relative to foreign competitors these results imply that freer trade within sub saharan african countries could provide significant incentive to intra regional trade

does eu enlargement increase agro food export duration this paper examines the impact of eu enlargement on agro food export performance across 12 new eu member states and five newly independent states in the eu markets covering the period 1999 to 2007 the performance is examined by duration of export and hazard model we find larger duration for the agro food exports from the new eu member states the results confirm gains from the eastward eu enlargement and governance on export increases and longer duration for exporting higher value added specialized consumer ready food and more competitive niche agro food products

credit and identity theft abstract the quintessential crime of the information age is identity theft the malicious use of personal identifying data in this paper we model identity and its use in credit transactions various types of identity theft occur in equilibrium including new account fraud existing account fraud and friendly fraud the equilibrium incidence of identity theft represents a tradeoff between a desire to avoid costly or invasive monitoring of individuals on the one hand and the need to control transactions fraud on the other our results suggest that technological advances will not eliminate this tradeoff

institutions and economic performance endogeneity and parameter heterogeneity the hallmark of the recent development and growth literature is a quest to identify institutions that explain a significant portion of the observed differences in living standards across countries empirical work in the area focuses almost exclusively on either the global sample or on developing nations certainly it is important to know which institutions are lacking in these developing countries but the analysis provides little evidence for us to know to what extend a common set of institutions actually matters in advanced and developing countries in this paper we examine parameter heterogeneity in prominent approaches to institutions and economic performance we find that a new set of instruments is necessary to control for endogeneity but that a common set of economically important institutions does indeed exist among advanced and developing nations the impact of these institutions does vary substantially across samples it is about three times as high in developing countries as compared to oecd countries

alternative hypotheses and the volume of trade the gravity equation and the extent of specialization we examine why the gravity equation works and the implications for its use first we demonstrate that the gravity equation as a statistical relationship can be generated from a model with incomplete specialization and trade costs second we analyse the predominance of zero bilateral trade values as a puzzle broadly inconsistent with the complete specialization models typically used to derive the gravity equation but consistent with the alternative hypothesis of incomplete specialization third we demonstrate that the explanation for why the gravity equation works has considerable relevance for how the gravity equation is interpreted and used and how we view bilateral trade diverses hypotheses et le volume du commerce l equation de gravite et le degre de specialisation les auteurs examinent comment fonctionne l equation de gravite et les implications de son usage on propose trois contributions d abord on montre que l equation de gravite en tant que relation statistique et non pas en tant que prediction specifique de commerce bilateral peut etre produite a partir d un modele avec specialisation incomplete et couts de transaction ensuite on analyse la predominance de valeurs zero dans les commerces bilateraux en tant qu enigme generalement incompatible avec les modeles de specialisation complete utilises habituellement pour deriver l equation de gravite mais compatible avec l hypothese de rechange de specialisation incomplete enfin on montre que les raisons pour lesquelles l equation de gravite fonctionne ont un impact sur la facon de l interpreter et de l utiliser et sur notre facon de concevoir le commerce bilateral

social norms and money abstract in an economy where there is no double coincidence of wants and without public record keeping of past transactions money is usually seen as the only mechanism that can support exchange in this paper we show that as long as the population is finite and agents are sufficiently patient a social norm establishing gift exchange can substitute for money however for a given discount factor population growth eventually leads to the breakdown of the social norm additionally increases in the degree of specialization in the economy can also undermine the social norm by contrast monetary equilibrium exists independent of the population size we conclude that money is essential as a medium of exchange when the population is large

insecurity and the pattern of trade an empirical investigation corruption and imperfect contract enforcement dramatically reduce international trade this paper estimates the reduction using a structural model of import demand in which insecurity acts as a hidden tax on trade we find that inadequate institutions constrain trade as much as tariffs do we also find that omission of indices of institutional quality biases the estimates of typical gravity models obscuring a negative relationship between per capita income and the share of total expenditure devoted to traded goods finally we argue that cross country variation in the effectiveness of institutions and the consequent variation in the prices of traded goods offer a simple explanation for the stylized fact that high income capital abundant countries trade disproportionately with each other

services trade protection and economic isolation poor connectivity is conventionally blamed on difficult geography and low income but economic isolation could also result from policy choices in key linking services such as air transportation and telecommunications a new database on applied services trade policies reveals that many countries restrict trade in the very services that connect them with the rest of the world we present evidence that restrictive policies lead to more concentrated market structures and limited access to services even after taking into account the influence of geography and income moving from an intermediate level of restrictiveness to an open regime could lead to a 20 percentage point increase in cellular teledensity in the telecommunications sector and to a 25 per cent increase in flight connections per airline in the aviation sector respectively

the welfare effects of distribution regulations in oecd countries i introduction the distribution sector plays a crucial and large role in most economies 1 in the g 7 united states japan germany france united kingdom italy and canada distribution s share of gross domestic product gdp ranges from 8 to 15 and its share in employment ranges from 11 to 19 pilat 1997 table 2 1 because almost all goods in an economy pass through this sector distribution can heavily influence prices for consumer goods in particular these price effects can be large in organisation for economic cooperation and development oecd countries consumer prices for final goods exceed the corresponding producer prices by 40 and more in addition to indeed because of its economic importance distribution producers enjoy substantial political clout and have won many favorable regulations from the political process see kalirajan 2000 and pilat 1997 these regulations may impose large welfare costs and may exert a large influence on trade flows nonetheless relatively few publications rigorously analyze the potential overall welfare and trade effects of deregulating distribution this study seeks to fill some of that void i first provide a brief overview of distribution regulations then i present new internationally comparable distribution margins data for a sample of eight oecd countries these data are used to infer the extent to which distribution regulations reduce efficiency for four of these countries i conduct an applied general equilibrium age analysis of the welfare effects of high margins and find that they impose large costs rivaling those of protection it appears that efforts to increase economic welfare should not ignore the potentially large gains from liberalizing distribution this article also examines the relationship between restricted distribution and imports ii distribution regulations several studies have described a variety of distribution regulations in oecd countries nicoletti 2001 boylaud 2000 kalirajan 2000 and pilat 1997 provide excellent overviews these studies imply that despite some liberalization many impediments remain the most burdensome regulations include restrictions on large stores onerous business set up rules restrictive zoning laws and other real estate regulations limits on product ranges store hours and pricing and monopoly distributors for certain products such as pharmaceuticals liquor and tobacco in addition many local regulations work under the radar of studies such as these the limited literature on the subject implies that distribution regulations reduce welfare pellegrini 2000 estimates that deregulating retail trade would increase italian gdp by more than 1 japan s economic planning agency 1996 finds that loosening restrictions on large retailers has increased japanese gdp by 1 pilat 1997 cites a european commission study that finds that liberalizing store hours has greatly increased consumer welfare carree and nijkamps 2001 find efficiency gains after entry barrier removal in the netherlands nicoletti 2001 concludes both simulation and econometric studies point unequivocally to potentially large welfare gains from the liberalization of retail trade also burda 2000 and studies cited in nicoletti 2001 find that employment would increase not decrease with liberalization these studies provide valuable information but none simulate the effect of a country s total package of distribution regulations on welfare i do so by exploiting age modeling which takes account of links among industries and nations to produce broad brushed estimates of inflated margins effects in multiple countries distribution s widespread influence on an economy makes an age approach especially important 2 iii measuring margins the underlying data the distribution margins data grow out of protection data developed in bradford 1998 2003

modeling synergies in multi criteria supplier selection and order allocation an application to commodity trading abstract we propose a novel meta approach to support collaborative multi objective supplier selection and order allocation ssoa decisions by integrating multi criteria decision analysis and linear programming lp the proposed model accounts for suppliers performance synergy effects within a hierarchical decision structure it incorporates both heterogeneous objective data and subjective judgments of the decision makers dms representing various groups with different voting powers vps we maximize the total value of purchasing tvp by optimizing order quantity assignment to suppliers and taking into consideration their synergies encountered in different time horizons we apply the proposed model to a contractor selection and order quantity assignment problem in an agricultural commodity trading act company we maximize the strategic effectiveness of both the customers and the suppliers minimize risks increase the degree of cooperation between trading partners on all levels of supply chain integration enhance transparent knowledge sharing and aggregation and support collaborative decision making

on money as a medium of exchange we analyze economies in which individuals specialize in consumption and production and meet randomly over time in a way that implies that trade must be bilateral and quid pro quo nash equilibria in trading strategies are characterized certain goods emerge endogenously as media of exchange or commodity money depending both on their intrinsic properties and on extrinsic beliefs there are also equilibria with genuine fiat currency circulating as the general medium of exchange we find that equilibria are not generally pareto optimal and that introducing fiat currency into a commodity money economy may unambiguously improve welfare velocity acceptability and liquidity are discussed

institutions infrastructure and trade we work with a panel of bilateral trade flows from 1988 to 2002 exploring the influence of infrastructure institutional quality colonial and geographic context and trade preferences on the pattern of bilateral trade we are interested in threshold effects and so emphasize those cases where bilateral country pairs do not actually trade we depart from the institutions and infrastructure literature in this respect using selection based gravity modeling of trade flows we also depart from this literature by mixing principal components to condense our institutional and infrastructure measures with a focus on deviations from expected values for given income cohorts to control for multicollinearity infrastructure and institutional quality are significant determinants not only of export levels but also of the likelihood exports will take place at all our results support the notion that export performance and the propensity to take part in the trading system at all depends on institutional quality and access to well developed transport and communications infrastructure indeed this dependence is far more important empirically than variations in tariffs in explaining sample variations in north south trade this implies that policy emphasis on developing country market access instead of support for trade facilitation may be misplaced

common mistakes in making value trade offs value trade offs define how much must be gained in the achievement of one objective to compensate for a lesser achievement on a different objective value trade offs that adequately express a decision maker s values are essential both for good decision making in multiple objective contexts and for insightful analyses of multiple objective decisions this paper identifies and illustrates 12 important mistakes frequently made that limit one s ability to determine useful value trade offs it then suggests how to avoid making these mistakes the intent is to provide practical advice for making good value trade offs and hence better decisions

the world distribution of income falling poverty and convergence period we estimate the world distribution of income by integrating individual income distributions for 138 countries between 1970 and 2000 country distributions are constructed by combining national accounts gdp per capita to anchor the mean with survey data to pin down the dispersion poverty rates and head counts are reported for four specific poverty lines rates in 2000 were between one third and one half of what they were in 1970 for all four lines there were between 250 and 500 million fewer poor in 2000 than in 1970 we estimate eight indexes of income inequality implied by our world distribution of income all of them show reductions in global inequality during the 1980s and 1990s

how productive is infrastructure a new approach and evidence from rural india there have been competing arguments about the effect of public infrastructure on productivity level based and debate based regressions often lead to different estimates to help reconcile this difference this article applies the gmm method to first test for causality to check for length of lagged relationships and the existence of reverse causality before specifying a final model and deciding the estimation procedure this approach is illustrated using a panel data set for india the results show that infrastructure development in india is productive providing supporting evidence to reverse the trend of declining investment in rural infrastructure

institutional quality and international trade institutions quality of contract enforcement property rights shareholder protection and the like have received a great deal of attention in recent years yet trade theory has not considered the implications of institutional differences beyond treating them simply as different technologies or taxes the purpose of this paper is twofold first we propose a simple model of international trade in which institutional differences are modeled within the framework of incomplete contracts we show that doing so reverses many of the conclusions obtained by equating institutions with productivity institutional differences as a source of comparative advantage imply among other things that the less developed country may not gain from trade and factor prices may actually diverge as a result of trade second we test empirically whether institutions act as a source of trade using data on us imports disaggregated by country and industry the empirical results provide evidence of institutional content of trade institutional differences are an important determinant of trade flows

goal based construction of preferences task goals and the prominence effect preferences inferred from choice are more likely to favor the alternative that is superior with respect to the prominent most important or salient attribute than are preferences inferred from matching direct tradeoff judgments this prominence effect violates standard models of rational choice and complicates the task of measuring preferences in this article we propose a new task goal hypothesis regarding the prominence effect the prominent attribute receives more weight in tasks whose goal is to differentiate among options than in tasks whose goal is to equate options we use this hypothesis to generalize the prominence effect beyond choice and matching to several additional tasks including the choice based matching and difference comparison methods that are widely employed in decision analysis the results of three studies provide strong support for the task goal account of the prominence effect and cast doubt on competing explanations we discuss the implications of these findings for descriptive decision theory and for preference measurement in decision analysis public policy and marketing

money and dynamic credit arrangements with private information abstract we construct a model with private information in which consumers write dynamic contracts with financial intermediaries a role for money arises due to random limited participation of consumers in the financial market without defection constraints a friedman rule is optimal the mean and variability of wealth tend to fall with inflation in the steady state and the welfare effects of inflation are very small with defection constraints the effects of inflation on the distribution of welfare and consumption are large but the effect on average welfare is still small the relaxation of defection constraints resulting from higher inflation can cause a substantial increase in the real interest rate journal of economic literature classification numbers d8 e4 g2

comments on money is privacy by charles kahn james mcandrews and william roberds monetary theory and game theory three classes of models on money closely related to game theoretic models are i search theoretic models ii repeated games in a narrow sense and iii trading post games this note tries to point out the sense of affinity between the theory of microfoundations of money and the theory of repeated games in a broad sense of the term

online shopping and platform design with ex ante registration requirements we study platform design in online markets in which buying involves a nonmonetary cost for consumers caused by privacy and security concerns firms decide whether to require registration at their website before consumers learn relevant product information we derive conditions under which a monopoly seller benefits from ex ante registration requirements and demonstrate that the profitability of registration requirements is increased when taking into account the prospect of future purchases or an informational value of consumer registration to the firm moreover we consider the effectiveness of discounts store credit as a means to influence the consumers registration decision finally we confirm the profitability of ex ante registration requirements in the presence of price competition the online appendix is available at https doi org 10 1287 mnsc 2016 2595 this paper was accepted by j miguel villas boas marketing

an experiment on retail payments systems we study the behavioral underpinnings of adopting cash versus electronic payments in retail transactions a novel theoretical and experimental framework is developed to primarily assess the impact of sellers service fees and buyers rewards from using electronic payments buyers and sellers face a coordination problem independently choosing a payment method before trading in the experiment sellers readily adopt electronic payments but buyers do not eliminating service fees or introducing rewards significantly boosts the adoption of electronic payments hence buyers incentives play a pivotal role in the diffusion of electronic payments but monetary incentives cannot fully explain their adoption choices findings from this experiment complement empirical findings based on surveys and field data

assessing the benefits of trade facilitation a global perspective this paper estimates the relationship between trade facilitation and trade flows using a panel of disaggregated manufactured goods for the 2000 2001 period for 75 countries four categories of trade facilitation are defined measured and assessed for their impact on bilateral trade flows using a gravity model the four measures of trade facilitation are port infrastructure air and maritime customs environment regulatory environments and e business infrastructure the results suggest that raising global capacity halfway to the world average in the four areas would increase trade by 377 billion most regions of the world increase exports more than imports in large part this result stems from increased exports to oecd markets that is obtained through a country s own effort to improve ports customs regulations and services infrastructures in addition the results suggest that reform and capacity building in trade facilitation in areas related to gatt articles v viii and x that are under discussion at the world trade organisation could expand trade and exports significantly many of the reform measures necessary to achieve this goal need not necessarily require large scale investment projects but rather action in legal and administrative reform to facilitate trade

trade democracy and the gravity equation abstract does democracy affect trade there are several channels by which democracy may affect trade with differing implications first democratization in the exporting country can improve product quality and reduce trade costs increasing bilateral trade second democratization in the importing country may increase trade barriers and thus reduce imports in this paper i analyze the effect of democracy on trade by augmenting the gravity equation with democracy using a rich panel data set and controlling for the endogeneity of democracy i find empirical evidence consistent with the hypothesis that democracy fosters trade this finding is robust to various econometric methods and to the use of disaggregated specifications

the effect of information and communication technologies on urban structure this paper examines the effects of information and communication technologies ict on urban structure improvements in ict may lead to changes in urban structure for example because they reduce the costs of communicating ideas from a distance hence they may weaken local agglomeration forces and thus provide incentives for economic activity to relocate to smaller urban centres we use international data on city size distributions in different countries and on country level characteristics to test the effect of ict we find robust evidence that increases in the number of telephone lines per capita encourage the spatial dispersion of population in that they lead to a more concentrated distribution of city sizes so far the evidence on internet usage is more speculative although it goes in the same direction we argue that the internet is likely to have similar or even larger effects on urban structures once its use has spread more thoroughly through different economies

currency and credit are equivalent mechanisms i study a pure exchange economy with many agents whose marginal utility of consumption is stochastically heterogeneous and independent of wealth with realized marginal utility of wealth private information i show that currency and credit are equivalent to a contract that is efficient when the privacy of information is viewed as a constraint and that the cash in advance constraint is an expression of an incentive constraint

aid infrastructure and fdi assessing the transmission channel with a new index of infrastructure official development assistance oda and foreign direct investment fdi are widely perceived to be alternative means of supplementing domestic savings and promoting economic development in low and middle income countries however possible complementarities of aid and fdi have received limited attention so far it remains open to debate whether aid could render recipient countries more attractive to fdi by removing specific bottlenecks that prevent higher fdi inflows in particular we raise the hypothesis that aid specifically targeted at economic infrastructure helps developing countries attract higher fdi inflows through improving their endowment with infrastructure in transportation communication energy and finance by performing 3sls estimations we explicitly account for dependencies between three structural equations on the allocation of sector specific aid the determinants of infrastructure and the determinants of fdi we find strong and robust evidence that aid in infrastructure is effective in improving the recipient countries endowment with infrastructure in sharp contrast other aid is not effective in improving infrastructure infrastructure consistently proves to be an important determinant of developing countries attractiveness to fdi consequently only targeted aid promotes fdi indirectly through the infrastructure channel in addition aid in infrastructure has direct effects on fdi it appears that foreign investors anticipate longer term effects of aid on the country s endowment with infrastructure and expect aid financed infrastructure to serve them particularly well

incomplete record keeping and optimal payment arrangements abstract we study a random matching absence of double coincidence environment in which people cannot precommit and in which there are two imperfect ways to keep track of what other people have done in the past money and a public record of all past actions that is updated with an average lag we study how the magnitude of that lag affects the allocations that are optimal from among allocations that are stationary and feasible and that satisfy incentive constraints which arise from the absence of commitment and the imperfect ways of keeping track of what others have done in the past journal of economic literature classification numbers e40 c73 d82

does aid for trade enhance export performance investigating on the infrastructure channel today there are few empirical studies assessing the effectiveness of aid for trade on trade pe rformance furthermore existing works do not test channels by which this impact is transiting we address this question using an empirical analysis constructed in two steps following a model of export performance we first test if institutions and infrastructure our two potential channels of transmission are indeed determinants of export performance secondly we test the impact of aid for trade sectoral flows on the determinants that were highlighted in the first part we show that the infrastructure channel appears to be highly significant in the first step whereas the institutional one turns out to have limited impact on developing countries exports furthermore in our second step aid for infrastructure seems once instrumented to have a strong and positive impact on the infrastructure level our results indicate that a 10 increase in aid to infrastructure commitments per capita leads to an average increase of the exports over gdp ratio for a developing country of 2 34 it is also equivalent to a 2 71 reduction of the tariff and non tariff barriers this highlights the very high economic impact of aid for trade throughout the channel of infrastructures

repeated games with private monitoring two players we investigate two player infinitely repeated games where the discount factor is less than but close to unity monitoring is private and players cannot communicate we require no condition concerning the accuracy of players monitoring technology we show the folk theorem for the prisoners dilemma with conditional independence we also investigate more general games where players private signals are correlated only through an unobservable macro shock we show that efficiency is sustainable for generic private signal structures when the size of the set of private signals is sufficiently large finally we show that cartel collusion is sustainable in price setting duopoly

bitcoin 1 bitcoin 2 an experiment in privately issued outside monies the value of bitcoin depends upon self fulfilling beliefs that are hard to pin down we demonstrate this for the case where bitcoin is the only form of money in the economy and then generalize the message to the case of multiple bitcoin clones and or a competing sovereign currency some aspects of the indeterminacy we describe would no longer hold if bitcoin were an interesting bearing object

money is memory abstract this paper examines the sets of feasible allocations in a large class of economic environments in which commitment is impossible following myerson 8 the standard definition of feasibility is adapted to take account of the lack of commitment the environments feature either memory or money memory is defined as knowledge on the part of an agent of the full histories of all agents with whom he has had direct or indirect contact in the past money is defined as an object that does not enter utility or production functions and is available in fixed supply the main proposition is that any allocation that is feasible in an environment with money is also feasible in the same environment with memory depending on the environment the converse may or may not be true hence from a technological point of view money is equivalent to a primitive form of memory journal of economic literature classification numbers e40 c73 d82

informal barriers and agricultural trade does monetary integration matter eu enlargement and the recent sovereign debt crisis of euro zone countries have revived the debate around the european monetary union emu in this article we ask how informal barriers to agricultural and food trade have changed since the introduction of the common european currency and whether this evolution can be attributed to monetary integration we focus on the foreign trade of the 11 emu founder countries over a nine year period covering the creation of the emu and find a diminishing marginal trade impact of both information and institutional barriers we find a lower level of trade barriers but cannot attribute this outcome to the introduction to the euro

has distance died evidence from a panel gravity model the estimated coefficient of distance on the volume of trade is generally found to increase rather than decrease through time using the traditional gravity model of trade this distance puzzle proved robust to several ad hoc versions of the model using data for 1962 96 for a large sample of 130 countries the introduction of an augmented barrier to trade function removes the paradox yielding a decline in the estimate of the elasticity of trade to distance of about 11 percent over the 35 year period for the whole sample however the death of distance is shown to be largely confined to bilateral trade between rich countries with poor countries becoming marginalized

efficiency in repeated prisoner s dilemma with private monitoring abstract this paper analyzes repeated games with private monitoring where in each period each player receives a signal of the other player s action in the previous period and that signal is private information previous literature on discounted repeated games with private monitoring has not shown whether or not nearly efficient equilibria exist for a repeated prisoner s dilemma satisfying a certain assumption regarding stage game payoffs we show that there exists a nearly efficient sequential equilibrium provided that imperfectness of signals is small and players are patient journal of economic literature classification number c73