a search theoretic model of legal and illegal currency abstract using a search theoretic model of money we explore the conditions under which two currencies domestic and foreign will co exist despite legal restrictions on the use of foreign currency for internal trade we study how changes in government policy i e its enforcement of currency laws through fines or the rate of enforcement affects the acceptability of illegal currency the equilibrium value of both currencies and the implicit exchange rate first we construct a model with indivisible goods to show conditions under which legal currency is fully acceptable but illegal currency circulates with varying acceptability we then introduce bargaining to determine prices in legal and illegal currency we show that some enforcement polices can create multiple equilibria while others will not also some methods of enforcement are capable of driving the illegal currency out of circulation while others are not

res and risk renewable energy s contribution to energy security a portfolio based approach abstract during the first decade of the 21st century renewable energy sources res had been gaining momentum due to environmental issues concerns about pollution and climate change have raised public awareness encouraging governments to adopt policies to preserve and protect the environment regarding energy res promotion together with energy efficiency measures has been the main policy response to address such concerns as a consequence res development during the first decade of the 21st century has been remarkable although res deployment has been mainly focused on achieving environmental goals its potential contribution to energy security went not unnoticed however it is worth noting that while the trade off between environmental goals and the use of res to accomplish them and competitiveness has been widely explored the relationship between energy security and res has received less attention both at the conceptual and energy policy levels this article tries to address such a relationship the present article focuses on renewable electricity imports as illustrated by the case of the mediterranean solar plan after introducing the energy security energy risk concept and its dimensions the article focuses on the contribution of res in terms of security of supply for a given energy mix using the portfolio theory most of the analyses of the interactions between res and energy security focus on the national level with res being mainly conceived as a substitute for fuel imports to produce electricity and reduce so called energy dependence however new transmission technologies allow the import of electricity directly from neighbouring countries far out of the range of regular electricity lines therefore this article tries to broaden the analysis of energy security to international res trade flows applying the previous discussion to the main project involving significant international green electricity trade the mediterranean solar plan

electricity transition in the middle east and north africa a de risking governance approach high upfront costs and investment risks constitute critical barriers for investments in low carbon infrastructure technologies in the middle east and north africa this article uses a case study of morocco s solar strategy for the electricity sector in order to explore how domestic versus regional multilateral governance structures impact upon the downside risk of clean energy investments and translate into lower financing costs we firstly process trace the differential effects of governance on policy and financial de risking intended as risk reduction and risk transfer then we quantify the impact of policy and financial de risking on the financing costs of the ouarzazate csp noor 1 project our results suggest that i policy and financial de risking depended on a clear policy commitment of the government to develop solar electricity a strong domestic institutional capacity to transform commitment into concrete projects as well as a strong commitment of development finance institutions at project level our results suggest that ii lower financing cost depended on concessional finance provided by multiple lenders proactive policy de risking efforts taken at domestic level and the competitive auction besides the expected impact of concessional finance these findings lend qualitative quantitative support to the argument that domestic policy de risking pay off unlocking concessional finance and reducing the private investors required return from the project therefore governments of the middle east and north africa countries should pursue any efforts in implementing or enhancing policy de risking measures under the emerging post 2020 climate policy regime new instruments might also incorporate a focus on investment risks through country specific technical and financial assistance however our analysis suggests that electricity policy legacies and practices are hard to change in the middle east and north africa therefore technical and financial assistance should target especially those areas that have a particular policy de risking potential namely capacity building on project assessment project finance and grid management

coalition proof trade and the friedman rule in the lagos wright model the lagos wright model a monetary model in which pairwise meetings alternate in time with a centralized meeting has been extensively analyzed but always using particular trading protocols here trading protocols are replaced by two alternative notions of implementability one that allows only individual defections and one that also allows cooperative defections in meetings it is shown that the first best allocation is implementable under the stricter notion without taxation if people are sufficiently patient and if people are free to skip the centralized meeting then lump sum taxation used to pay interest on money does not enlarge the set of implementable allocations

perception of risks in renewable energy projects the case of concentrated solar power in north africa the world needs to reduce greenhouse gas emissions to prevent climate change while meeting the energy needs of developed and developing economies recent studies suggest that generation of electricity from concentrated solar power in north african countries and its transmission to europe could provide european and north african partners with low carbon electricity the private capital will be likely required to achieve the scale of new investment and yet the north african region experience difficulties with sustaining high levels of foreign direct investment from the private sector the literature identifies a number of risks as barriers to investment and we examine these in the particular context of renewable energy development we conducted three stages of interviews with stakeholders to learn their perceptions of the risks most likely to affect renewable energy projects three class of risks regulatory political and force majeure which includes terrorism stand out as being of high concern of these regulatory risks are perceived as being the most consequential and the most likely to occur this suggests that attention to building the capacities of north african countries to develop implement and enforce sound regulations in a transparent manner could be an important step in promoting renewable energy cooperation with europe

a walrasian theory of money and barter we study a barter economy in which each good is produced in two qualities and no trader can distinguish between the qualities of those goods he neither consumes nor produces we show that in competitive equilibrium there exists a unique good the one for which the discrepancy between qualities is smallest that serves as the medium of exchange this good mediates every trade equilibrium is inefficient because production of the medium would be lower if it were not for its mediating role introducing fiat money enhances welfare by eliminating this distortion however high inflation drives traders back to the commodity medium

measuring organizational downside risk despite widespread incorporation of risk measures in strategy research there is little consensus regarding the meaning and measurement of risk in contrast to the variability measures widely used in strategy studies this paper draws from behavioral decision theory finance and management theory to present an alternative perspective on organizational risk downside risk the paper explains three categories of organizational downside risk measures based on the concept of lower partial moments the latter sections of the paper present considerations involved in specifying operational measures of downside risk and an empirical comparison of alternative downside risk measures

hysteresis in a simple model of currency substitution abstract a cash in advance model in which the cost of buying goods with a foreign currency is decreasing in the economy s accumulated experience in transacting in the foreign currency is shown to display hysteresis in money velocity that is a temporary increase in expected inflation can cause a permanent increase in velocity in addition the model implies that the domestic currency does not have to dominate the foreign currency in rate of return to induce agents to stop using the foreign currency finally inflation rates that trigger currency substitution need not be associated with steady states in which the domestic currency disappears from circulation

incentive feasible deflation abstract for competitive economies in which the real rate of return on money is too low the standard prescription is to engineer a deflation that is to operate monetary policy according to the friedman rule implicit in this recommendation is the availability of a lump sum tax instrument in this paper i view lump sum tax obligations as a form of debt subject to default while individuals may want to honor such obligations ex ante a lack of commitment the sine qua non of modern monetary theory may prevent them from the following through on their promises ex post when this is the case there may exist an incentive induced limit to deflationary policy

endogenous currency substitution inflationary finance and welfare in some countries a foreign currency has replaced the domestic one to perform the functions of money this phenomenon is known as currency substitution this paper explores the relationship between currency substitution and inflationary finance in an overlapping generations model in which currency substitution is an endogenous equilibrium outcome the author describes when currency substitution may emerge and shows that it may be a purely expectational phenomenon he uses the model to discuss the welfare effects of inflation and the effects of policies that deal directly with currency substitution cs copyright 1994 by ohio state university press

dollarization and currency exchange abstract we use a dual currency money search model to study dollarization agents hold portfolios consisting of two currencies one of which is risky we use numerical methods to solve for the steady state distributions of currency portfolios transaction patterns and value functions as risk increases agents increasingly use the safe currency as a medium of exchange dollarization occurs furthermore the safe currency trades for multiple units of the risky currency this type of currency exchange and the corresponding nominal exchange rate are often observed in black market or unofficial currency exchange markets in developing countries due to decentralized trading a distribution of exchange rates arises whose mean and variance change in predictable ways when currency risk increases

barter and monetary exchange under private information the authors develop a model of production and exchange with uncertainty concerning the quality of commodities and study the role of fiat money in ameliorating frictions caused by private information the model is specified so that without private information only high quality commodities are produced and there is no welfare gain from using money with private information there can be equilibria and sometimes multiple equilibria where low quality commodities are produced and money can increase welfare money works by promoting useful production and exchange in efficient monetary equilibria agents adopt strategies that increase the probability of acquiring high quality output copyright 1994 by american economic association

inside and outside money as alternative media of exchange we study a random matching model of money in which a subset of people called bankers have known histories and the rest called nonbankers have unknown histories earlier we showed that if there are no outside assets then an optimal arrangement has bankers issuing objects banknotes that are used in trades involving nonbankers here the same model is used to compare such exclusive use of inside money to the exclusive use of outside money we show that the set of implementable outcomes using outside money is a strict subset of the set using inside money

new directions for stochastic open economy models the paper develops a simple stochastic new open economy macroeconomic model based on sticky nominal wages explicit solution of the wage setting problem under uncertainty allows one to analyze the effects of the monetary regime on welfare expected output and the expected terms of trade despite the potential interplay between imperfections due to sticky wages and monopoly the optimal monetary policy rule has a closed form solution to motivate our model we show that observed correlations between terms of trade and exchange rates are more consistent with our traditional assumptions about nominal rigidities than with a popular alternative based on local currency pricing 2000 elsevier science b v all rights reserved

money barter and costly information acquisition abstract endogenous information structure is analyzed in a search model of production and exchange under qualitative uncertainty by allowing agents to invest in an inspection technology at a fixed cost where incurring a higher cost permits quality to be recognized with higher probability in any equilibria where agents acquire information some bad commodities are always produced the information acquisition promotes production and exchange of good commodities as the information problem becomes severe money can improve welfare by economizing on information costs in the optimal monetary equilibrium agents adopt trading strategies which contribute to the saving of information costs

development of supersmart grids for a more efficient utilisation of electricity from renewable sources abstract if europe is serious about reaching its target to keep global mean temperature increase below 2 c it must strive for a 100 renewable electricity system by 2050 the supersmart grid approach combines what is often perceived as two exclusive alternatives wide area power generation and decentralised power generation we argue that by combining these in fact complementary measures it is possible to address the crucial issue of renewable generation fluctuating supply in a comprehensive as well as in a technologically and economically viable manner thus the supersmart grid simultaneously can contribute to energy security climate security social security and national security

endogenous multiple currencies in this paper i study a model in which households can decide which currency or currencies they will accept i provide a simple set of assumptions that are sufficient to prevent the indeterminacy of the exchange rate in the sense of kareken and wallace 1981 in a two country model stable equilibria have either a single currency or national currencies i also show currency substitution occurs as an endogenous response to high growth in the stock of a currency

an information based theory of international currency abstract this paper develops an information based theory of international currency based on search frictions private trading histories and imperfect recognizability of assets using an open economy search model with multiple competing currencies the value of each currency is determined without requiring agents to use a particular currency to purchase a country s goods strategic complementarities in portfolio choices and information acquisition decisions generate multiple equilibria with different types of payment arrangements while some inflation can benefit the country issuing an international currency the threat of losing international status puts an inflation discipline on the issuing country when monetary authorities interact in a simple policy game the temptation to inflate can lead optimal policy to deviate from the friedman rule the calibrated model can produce a welfare cost of losing international status for the issuing country larger than previous findings though estimates depend critically on inflation rates and information costs

de risking concentrated solar power in emerging markets the role of policies and international finance institutions abstract concentrated solar power csp is a promising technology for low carbon energy systems as combined with thermal storage it can store solar energy as heat and deliver power more flexibly and when most needed by the grid however its high cost prevents its rapid deployment and affects its affordability in emerging economies international financial institutions ifis have emerged as key players to enable csp in emerging economies especially when cooperating with national policymakers through the analysis of two csp plants in india and morocco where ifis provided the lion s share of finance this paper aims to assess the effectiveness of their support and estimate the impact of ifis financing on electricity production costs and mobilization of private investments the two case studies show that public financial institutions can play a leading role in reducing the cost of csp support on public budgets by providing concessional loans in countries where public and or private finance would be too expensive or extending maturities where commercial investors are present but poorly suited for project finance finally we show that combined with competitive tariff setting mechanism tenders and auctions public financial support can also be a cost effective tool to engage private investors in csp

payments and liquidity under adverse selection informational asymmetries regarding the future value of assets affect their role in exchange i construct a random matching economy composed of two assets a risk free bond and a lucas tree whose terminal value is privately known to its holder no restrictions are imposed on payment arrangements the main finding supports a pecking order theory of payments agents use their risk free bonds first in order to finance their spending shocks and they use their information sensitive assets only if their holdings of bonds are depleted the theory has implications for the optimal provision of risk free bonds the structure of asset returns and liquidity

inflation and welfare a search approach this paper extends recent findings in the search theoretic literature on monetary exchange regarding the welfare costs of inflation we present first estimates of the welfare cost of inflation using the welfare triangle methodology of bailey 1958 and lucas 2000 we then derive a money demand function from the search theoretic model of lagos and wright 2005 and we estimate it from u s data over the period 1900 2000 we show that the welfare cost of inflation predicted by the model accords with the welfare triangle measure when pricing mechanisms are such that buyers appropriate the social marginal benefit of their real balances for other mechanisms welfare triangles underestimate the true welfare cost of inflation because of a rent sharing externality we also point out other inefficiencies associated with noncompetitive pricing which matter for estimating the cost of inflation we then illustrate how endogenous participation decisions can mitigate or exacerbate the cost of inflaion and we provide calibrated examples in which a deviation from the friedman rule is optimal finally we discuss distributional effects of inflation

currency exchange in a random search model this paper investigates foreign exchange trading a phenomenon that typically accompanies international trade a search theoretic general equilibrium approach is adopted to study a two country two currency model for some parameter values of the model there exist some pure strategy equilibria in which commodity currency trade is conducted primarily through local currency and in which there is active currency currency exchange the coexistence of valued foreign currency and its local non acceptability conforms largely with the country specific cash in advance constraint that is often assumed exogenously in international finance literature

toward a theory of international currency we use the framework of random matching games and develop a two country model of the world economy in which two national currencies compete and may be circulated as media of exchange there are multiple equilibria which differ in the areas of circulation of the two currencies in one equilibrium the two national currencies are circulated only locally in another one currency is circulated as an international currency there is also an equilibrium in which both currencies are accepted internationally we also find an equilibrium in which the two currencies are directly exchanged we first characterize the existence conditions of these equilibria in terms of the relative country size and the degree of economic integration and then use an evolutionary approach to equilibrium selection to explain the evolution of the international currency as the two economies become more integrated some welfare implications are also discussed for example a country can improve its national welfare by letting its own currency circulate internationally provided the domestic circulation is controlled for when the total supply is fixed however a resulting currency shortage may reduce the national welfare

financing renewable energy in africa key challenge of the sustainable development goals abstract given the challenge of offering a development perspective to a rapidly growing population it might be tempting for africa to pursue a strategy of fueling growth with the cheapest source of energy available and take care of the environment later such an approach however would disregard the social cost of fossil fuels which the population would have to bear using the sustainable development goals as a benchmark for inclusive and sustainable growth we identify the synergy effects provided by renewable energy already substantial efforts of financing the additional cost of re are under way an analysis of possible leverage points available instruments and involved actors shows that there remains a large additional potential

an empirical comparison of alternate regime switching models for electricity spot prices one of the most profound features of electricity spot prices are the price spikes markov regime switching mrs models seem to be a natural candidate for modeling this spiky behavior however in the studies published so far the goodness of fit of the proposed models has not been a major focus while most of the models were elegant their fit to empirical data has either been not examined thoroughly or the signs of a bad fit ignored with this paper we want to fill the gap we calibrate and test a range of mrs models in an attempt to find parsimonious specifications that not only address the main characteristics of electricity prices but are statistically sound as well we find that the most universal and robust structure is that of an independent spike 3 regime model with heteroscedastic diffusion type base regime dynamics and shifted spike regime distributions

a fundamental theory of exchange rates and direct currency trades in this paper we construct a two country search model to determine the nominal exchange rate between two fiat monies our model allows agents to use any currency to trade for goods in all countries however search frictions restrict agents opportunities for instantaneous arbitrage and hence make the nominal exchange rate determinate the nominal exchange rate depends on the two countries economic fundamentals including the stocks and growth rates of the two monies direct exchanges between currencies are essential and they imply a nominal exchange rate that is different from the relative price between the two currencies in the goods markets there are persistent violations of the law of one price and purchasing power parity in equilibrium despite the fact that prices are perfectly flexible and all goods are tradeable between countries nominal and real exchange rates can move together in the steady state in response to money growth shocks

on the indeterminacy of equilibrium exchange rates in this paper we consider a particular international economic policy regime the laissez faire regime the distinguishing features of which are unrestricted portfolio choice and floating exchange rates and as we show this regime although favored by many economists is not economically feasible it does not have a determinate equilibrium that is an implication of an overlapping generations model more basically it is an implication of the notion that money is wanted only in order to accomplish trades

currency areas and monetary coordination we integrate a monetary search model into open economy macro to analyze the gains from coordinating on inflation search frictions and local congestion lead to a determinate exchange rate between two currencies relative prices deviate from the law of one price because the deviations depend on the cross country differential in money growth each country is tempted to inflate to exploit the deviations policy coordination reduces inflation and improves welfare for all countries in contrast to traditional models the gains from coordination continue to exist even after each country optimally sets a direct tax on the foreign use of the country s currency

nonfundamental uncertainty and exchange rates this paper shows that there can be equilibria in which exchange rates display randomness unrelated to fundamentals this is demonstrated in the context of a two currency one good model with three agent types and cash in advance constraints a crucial feature is that the type i agents for i 1 2 must satisfy a cash in advance constraint by holding currency i while type 3 agents can satisfy it by holding either currency it is shown that real allocations vary across the multiple equilibria if markets for hedging exchange risk do not exist and that the randomness is innocuous if complete markets exist

thinking big politics progress and security in the management of asian and european energy megaprojects this article examines four energy megaprojects two in europe and two in asia for each region a large natural gas pipeline project and an international project involving solar power from the desert is studied the natural gas projects are the nabucco project in europe and the trans asean gas pipeline network in asia the solar power from the desert projects are desertec in europe and gobitec in asia the article probes explanations of megaproject failure along social technical economic political and psychological dimensions we find that these projects though they are very different in nature and pertain to different regions all suffer from a similar set of problems too many stakeholders and stakeholder fragmentation cost overruns and the risk of accidents and attacks massive externalization of costs to third party stakeholders concentration of wealth and corruption and inflated expectations and biased projections we conclude by reflecting on lessons for not only the involved institutions and investors but energy analysts and the public at large

adverse selection private information and lowballing in insurance markets recent contributions to the adverse selection literature have focused on a multiperiod competitive environment in this setting a clean distinction arises between the predictions of competing models cooper and hayes extend the model of rothschild and stiglitz to multiple periods the result is a self selecting equilibrium characterized by price highballing or systematically overcharging new business kunreuther and pauly suggest that information asymmetries between competing insurance firms render such price quantity policies infeasible their model results in a pooling equilibrium that is characterized by price lowballing or systematically undercharging new business our evidence is consistent with the kunreuther and pauly model and reveals the persistence of adverse selection in the automobile insurance market copyright 1990 by the university of chicago

the effect of political events on united states direct foreign investment a pooled time series cross sectional analysis this paper examines the effect of political events on the manufacturing direct foreign investment mdfi decisions of u s multinational corporations the relationship between political events and nonpolitical factors and mdfi is investigated through regression analysis of pooled time series 21 years and cross sectional 24 countries data and through various tests of the homogeneity of the relationship across groups of countries the study finds that the relationship between political events in mdfi is different for less developed countries as opposed to developed countries for the less developed countries both inter nation and intra nation conflict and cooperation affect mdfi in contrast u s mdfi in developed countries appears to be affected only by inter nation conflict and cooperation

solar power investment in north africa reducing perceived risks abstract climate protection targets for mid century imply a need to scale up european renewable power production to a level that may exceed the available land area within europe s borders one attractive solution from a cost and feasibility perspective is the development of large scale concentrating solar power plants in north africa and the middle east however these developments are seen by many people as risky in terms of both european energy security and in terms of the risks faced by project developers in this paper we focus on the latter of theses issues first we examine the risks that project developers are most concerned about and identify these as being associated not with terrorism and rogue state behavior but rather with corruption and inefficient and unpredictable bureaucracies second we identify a range of policy approaches that can reduce these risks either by mitigating their consequences or by seeking to eliminate their underlying causes third we investigate the financial benefits of taking such steps to reduce or eliminate investment risks we find the potential savings to european electricity consumers to exceed 200 billion

government transaction policy the medium of exchange and welfare abstract policy regarding what the government accepts in transactions is embedded in a version of the kiyotaki wright model of media of exchange in an example with two goods and one fiat money the policies that are consistent with fiat money as the unique medium of exchange are identified these policies have the government favoring fiat money in its transactions a benefit and a cost accompany any such policy the benefit is that a worse nonmonetary steady state is eliminated the cost is that a better monetary steady state is eliminated journal of economic literatureclassification number e40

gravity in international finance abstract the past decade has witnessed an explosion of papers estimating gravity equations for cross border financial holdings without much of a theoretical foundation in this paper we develop a theory for bilateral asset holdings that takes a gravity form we discuss how to estimate international financial frictions and conduct comparative statics analysis within the context of the theory we also find though that reasonable extensions of the model no longer generate a gravity form while this does not significantly complicate estimation and comparative statics analysis it raises questions about the empirical validity of gravity specifications for cross border financial holdings that need to be addressed in future work

bargaining and the value of money abstract search models of monetary exchange have typically relied on nash 1950 the bargaining problem econometrica 18 155 162 bargaining or strategic games that yield an equivalent outcome to determine the terms of trade by considering alternative axiomatic bargaining solutions in a search model with divisible money we show that the properties of the bargaining solutions do matter both qualitatively and quantitatively for questions of first degree importance in monetary economics such as i the efficiency of monetary equilibrium ii the optimality of the friedman rule and iii the welfare cost of inflation

a unified framework for monetary theory and policy analysis search theoretic models of monetary exchange are based on explicit descriptions of the frictions that make money essential however tractable versions of these models typically make strong assumptions that render them ill suited for monetary policy analysis we propose a new framework based on explicit micro foundations within which macro policy can be studied the framework is analytically tractable and easily quantifiable we calibrate the model to standard observations and use it to measure the cost of inflation we find that going from 10 percent to 0 percent inflation is worth between 3 and 5 percent of consumption much higher than previous estimates

international transfers of managers in north american and european mnes global scale mnes require a network of managers to direct and control operations around the world managerial resources for these jobs can be managers from the headquarters country host and third countries international transfers can be for specific staffing needs for management development and for organization development the general hypothesis examined in this paper was the global scale mnes would operate in a regio or geocentric fashion with full integration of the world pool of managerial resources for all international transfers case studies were done on two north american and two european mnes in the chemicals and electronics industries world wide transfers and consequent career opportunities were found in all cases for managers from headquarters countries regional transfers and careers were possible for host and third country managers in regio centric mnes but only national careers were possible in a poly centric mne temporary transfers to world or regional headquarters for management development were found for host and third country managers but transfers for organization development were for headquarters nationals no consistent differences in uses of transfers or international careers were found between north american and european mnes

bargaining with revoking costs abstract a simple two stage bilateral bargaining game is analyzed the players simultaneously demand shares of a unit size pie if the demands add up to more than one the players simultaneously choose whether to stick to their demand or accept the other s offer while both parties sticking to their offers leads to an impasse accepting a lower share than the original demand is costly for each party the set of pure strategy subgame perfect equilibria of the game is characterized for continuously differentiable payoff and cost functions strictly increasing in the pie share and the amount conceded respectively higher cost functions are shown to improve bargaining power the limit equilibrium prediction of the model as the cost functions are made arbitrarily high selects a unique equilibrium in the nash demand game that corresponds to a proportional bargaining solution of kalai 1977

managerial incentives and investment in r d in large multiproduct firms incentives for division managers in large firms affect their risk orientation and thus their decisions to invest in r d this paper reviews theory and hypothesizes that division managers incentive compensation that is based on financial performance is negatively related to risk taking as measured by r d intensity results of a study of 184 major u s firms suggest that incentives based on short term annual division financial performance are negatively related to total firm r d intensity after controlling for industry r d intensity firm diversification size and group structure furthermore the results suggest that an emphasis on long term financial incentives may mitigate the negative relationship between these incentives and r d intensity but does not promote risk taking the results suggest the importance of emphasizing strategic controls evaluating division managers based on operational understanding of strategies proposed strategic criteria as opposed to the use of financial controls evalua

international dimensions of optimal monetary policy abstract this paper provides a baseline general equilibrium model of optimal monetary policy among interdependent economies with monopolistic firms and nominal rigidities an inward looking policy of domestic price stabilization is not optimal when firms markups are exposed to currency fluctuations such a policy raises exchange rate volatility leading foreign exporters to charge higher prices vis a vis increased uncertainty in the export market as higher import prices reduce the purchasing power of domestic consumers optimal monetary rules trade off a larger domestic output gap against lower consumer prices optimal rules in a world nash equilibrium lead to less exchange rate volatility relative to both inward looking rules and discretionary policies even when the latter do not suffer from any inflationary or deflationary bias gains from international monetary cooperation are related in a non monotonic way to the degree of exchange rate pass through

employment under vertical and horizontal transfer of concentrated solar power technology to north african countries abstract the process of renewable energy technology transfer to developing countries can influence the industrialization of their economies and the reduction of their greenhouse gas emissions there are current plans to deploy large scale solar and wind capacities in the north africa countries including the mediterranean solar plan on the public side and the desertec industrial initiative on the private side we analyse both plans from a technology transfer perspective drawing a distinction between vertical transfer in which intellectual property and manufacturing capacity remains in industrialized countries and horizontal transfer in which manufacturing and development skills shift to the developing countries we find that horizontal technology transfer when 40 and more of all components are manufactured locally would bring significantly higher number of job years to north africans than vertical technology transfer and that the greatest number of jobs are induced in the service industries however the total job creation will still not provide jobs to all unemployed people in the entire region a case study of morocco suggests however that employment effects could be important for any country that gains a disproportionate share of new investment recent policy developments in north africa show that national governments started to take into consideration possibilities and benefits of horizontal technology transfer by launching plans of industrial development and introducing the rule of local compensation which foresees a share of components for large scale projects to be manufactured locally and by north african enterprises

pairwise trade and coexistence of money and higher return assets abstract a new theory of coexistence of money and higher return assets is set out it applies to any setting in which some trade involves an exchange of goods for assets and occurs between two people a buyer and a seller we show that there exists a function mapping the portfolios of the buyer and the seller to the trade that occurs such that i the trade is in the buyer seller core and ii some people are induced to enter the buyer seller meeting with money

the empirics of international currencies network externalities history and persistence using a new database for the late nineteenth century when the pound sterling was the world s leading international currency this article provides evidence on the empirical determinants of international currency status we report evidence in favour of the search theoretic models to international currencies using a microeconomic model of currency choice we provide empirical support to strategic externalities we find strong confirmation of the existence of persistence but reject the view that the international monetary system was subject to pure path dependency and lock in effects suggesting that even in the absence of wwi the usd was bound to overtake sterling

money and information this paper investigates the role of money in markets in which producers have private information about the quality of the goods they supply when the fraction of high quality producers in the economy is given money promotes the production of high quality goods which improves the quality mix and welfare unambiguously when this fraction is endogenous however we find that money can decrease welfare relative to the barter equilibrium the origin of this inefficiency is that money provides consumption insurance to low quality producers which can result in a higher fraction of low quality producers in the monetary equilibrium finally we find that most often agents acquire more costly information in the monetary equilibrium than in the barter equilibrium consequently money is welfare enhancing because it promotes useful production and exchange but not because it saves information costs

government transaction policy media of exchange and prices abstract we study government transaction policies in search theoretic models of money we model government as a subset of agents who are subject to the same random matching technology and other constraints as private agents but who behave in an exogenous way regarding which objects they accept in trade and at what price the objective is to see how these policies affect private agents strategies and hence the set of equilibria we analyze how the effects depend on factors like the size of government the intrinsic properties of money and the availability and efficacy of substitutes like barter or foreign currency journal of economic literature classification numbers c78 e31 e42

friedman meets hosios efficiency in search models of money this article studies optimal monetary policy in an economy with endogenous search decisions we show that the same frictions that give fiat money a positive value generate an inefficient quantity of goods in each trade and an inefficient number of trades the friedman rule eliminates the first inefficiency and the hosios rule the second a monetary equilibrium attains the social optimum if and only if both rules are satisfied when they cannot be satisfied simultaneously optimal monetary policy achieves only the second best we analyse the conditions under which the second best monetary policy exceeds the friedman rule

systemic risk reinsurance and the failure of crop insurance markets without affordable reinsurance private crop insurance markets are doomed to fail because systemic weather effects induce high correlation among farm level yields defeating insurer efforts to pool risks across farms using an empirical model of the u s crop insurance market we find that u s crop insurer portfolios are twenty to fifty times riskier than they would be otherwise if yields were stochastically independent across farms we also find that area yield reinsurance contracts would enable crop insurers to cover most of their systemic crop loss risk reducing their risk exposure to levels typically experienced by more conventional property liability insurers copyright 1997 oxford university press