liquidity protection versus moral hazard the role of the imf abstract a game between the imf a country and atomistic private investors is motivated by recent crises including that in argentina the one stage game has no nash equilibrium in pure strategies considering an equilibrium in mixed strategies conditions are derived on whether the imf should exist a cooperative first best may be supported in a repeated game by a minimum punishment strategy but breaks down as the probability of insolvency rises countries are likely to deviate in bad times placing the imf in an impossible position the international financial architecture ifa remains incomplete

renegotiation collective action clauses and sovereign debt markets abstract collective action clauses cacs are provisions specifying that a supermajority of bondholders can change the terms of a bond we study how cacs determine governments fiscal incentives sovereign bond prices and default probabilities in environments with and without contingent debt and imf presence we claim that cacs are likely to be an irrelevant dimension of debt contracts in current sovereign debt markets because of the variety of instruments utilized by sovereigns and the implicit imf guarantee nonetheless under a new international bankruptcy regime like that recently proposed by the imf cacs can increase significantly the cost of borrowing for sovereigns contrary to what is suggested in previous empirical literature

models of currency crises with self fulfilling features the discomfort a government suffers from speculation against its currency determines the strategic incentives of speculators and the scope for multiple currency market equilibria after describing an illustrative model in which high unemployment may cause an exchange rate crisis with self fulfilling features the paper reviews some other self reinforcing mechanisms recent econometric evidence seems consistent with the practical importance of these mechanisms

environmental kuznets curve for co2 emissions the case of arctic countries abstract the main new contribution of this paper is to examine the environmental kuznets curve ekc hypothesis using time series data at individual country levels empirical focus is on the assessment of income per capita on co 2 emissions in the arctic countries by taking into account the role of energy consumption an autoregressive distributed lag ardl modeling approach to cointegration is applied to annual data for the period 1960 2010 the results provide little evidence of the existence of the ekc hypothesis for the arctic countries we also find that economic growth has a beneficial effect on the environment only in some arctic countries finally energy consumption is found to have a detrimental effect on the environment in most countries

research and development and the schumpeterian hypothesis alternate approach there have been numerous empirical studies investigating the relationship between firm size and inventive activity since schumpeter first argued that the large scale enterprise has come to be the most powerful engine of economic progress 24 106 the important policy issue is whether large firm size is associated with greater innovative output but measuring innovative output is very difficult consequently many empirical studies have focused on the relationship between firm size and some measure of innovative inputs and argue that inferences can be made concerning innovative output and firm size as long as the production of innovations is characterized by nondecreasing returns to scale 2 fisher and temin 4 contend that the empirical tests relating innovative inputs and firm size are inappropriate for even if the production of innovation is characterized by increasing returns to scale a positive and increasing relationship between r d employment and firm size is neither necessary nor sufficient for there to be an increasing and positive relationship between innovative output and firm size 3 the fisher and temin results are controversial in review articles on innovation and monopoly power markham 16 states he does not accept the conclusions of fisher and temin while kamien and schwartz 10 mention fisher and temin but discuss the empirical literature without further reference to their

private sector involvement in the resolution of financial crises how do markets react abstract to correct the disincentives of liquidity assistance during financial crises the official sector attempts to involve the private sector in the resolution of debt crises this paper empirically tests the reaction of investors to announcements of private sector involvement psi for this purpose we disentangle shifts in risk premia incorporated in excess returns on emerging market bonds into changes in risk and shifts in the price of risk a regime switching arch m model is employed to separate two regimes with respect to the market price of risk while psi has no effect on risk it is shown that the likelihood of switching to a state with a high price of risk rises in response to psi announcements thus the results indicate that burden sharing was credible and hence effective

unique equilibrium in a model of self fulfilling currency attacks even though self fulfilling currency attacks lead to multiple equilibria when fundamentals are common knowledge we demonstrate the uniqueness of equilibrium when speculators face a small amount of noise in their signals about the fundamentals this unique equilibrium depends not only on the fundamentals but also on financial variables such as the quantity of hot money in circulation and the costs of speculative trading in contrast to multiple equilibrium models our model allows analysis of policy proposals directed at curtailing currency attacks

international financial crises causes prevention and cures dale jorgenson has bestowed a great honor and no small challenge by inviting me to give this lecture a great honor because of the distinguished list of economists who have preceded me a challenge because of the standard they have set and because there is no greater challenge for any economist than providing a coherent account of significant events to his scientific peers i am sometimes asked by friends about the differences between academic life and life as a public official there are many two stand out first as an academic the gravest sin one can commit is to sign one s name to something one did not write as a public official it is a mark of effectiveness to do so as often as possible second as an academic if a problem is too hard and does not admit of a satisfactory solution there is an obvious response work on a different problem that is not a luxury that one has in government i have been reminded of this often in recent years as we have grappled with financial crises in a number of what had previously been considered emerging markets with unrestrained futures anyone who doubts the social importance of what economists do should consider the debates surrounding these crises hundreds of millions of people who expected rapidly rising standards of living have seen their living standards fall hundreds of thousands if not millions of children have been forced to drop out of school and go to work hundreds of billions of dollars of apparent wealth has been lost the stability of large nations as nations has been called into question and the united states has made its largest nonmilitary foreign policyrelated financial commitments since the marshall plan almost all the issues involved in understanding preventing and mitigating these crises are the stuff of economics courses and research fixed versus flexible exchange rates moral hazard and multiple equilibria speculation and liquidity fiscal and monetary policies regulation and competition what economists think say and do has profound implications for the lives of literally billions of their fellow citizens whether it is discussing the role of derivatives in signaling exchange rate commitments with chinese premier zhu rongji or discussing an nber working paper on inflation targeting with the brazilian central bank governor arminio fraga or discussing alternative approaches to bankruptcy law with indonesia s economic team or optimal debt durations with the mexican authorities i am consistently struck by the impact of the kind of research discussed at the aea meetings the future well being of the world s people in large part will depend on how the ongoing process of global integration works out this is a strong statement but one that is supported by the global economy s post world war i failure and its post world war ii success central to global integration is financial integration the flow of funds and of capital across international borders and as the events of the late 1920 s and early 1930 s remind us central to global disintegration can be international financial breakdowns today i want to reflect on the issue of global financial integration in light of the dramatic and largely unpredicted events of recent years it is perhaps a good time for reflection there has been enough repair that priority can shift from u s department of the treasury 1500 pennsylvania avenue washington dc 20005 this lecture reflects many things i have learned from experiences i have shared with colleagues in the united states government and governments around the world i thank brad delong marty feldstein stephanie flanders ken rogoff andrei shleifer and ted truman for useful comments and suggestions i am especially grateful to nouriel roubini and stephanie flanders for valuable discussions and assistance in the preparation of this lecture the usual disclaimer applies

sovereign debt restructuring the judge the vultures and creditor rights what role did the us courts play in the argentine debt swap of 2005 what implications does this have for the future of creditor rights in sovereign bond markets the judge in the argentine case has it appears deftly exploited creditor heterogeneity between holdouts seeking capital gains and institutional investors wanting a settlement to promote a swap with a supermajority of creditors our analysis of argentine debt litigation reveals a judge mediated sovereign debt restructuring which resolves key issues of transition and aggregation two of the tasks envisaged for the imf s stillborn sovereign debt restructuring mechanism for the future we discuss how judge mediated sovereign debt restructuring together with creditor committees could complement collective action clauses in sovereign bond contracts

the propensity to patent abstract this paper analyzes the relationship between 1974 rd among the exceptions the tendency was toward diminishing returns variables measuring overseas sales federal r d support diversification scope of invention use and invention type had only modest explanatory power there was no significant evidence of disproportionate patent accumulation in the more highly concentrated industries

does strengthening collective action clauses cacs help does improving creditor coordination by strengthening cacs lead to efficiency gains in the functioning of sovereign bond markets we address this question in a model featuring both debtor moral hazard and creditor coordination under incomplete information conditional on default we characterize the interim efficient cac threshold and show that strengthening cacs away from unanimity results in interim welfare gains however once the impact of strengthening cacs on debtor s incentives is taken into account we demonstrate the robust possibility of a conflict between ex ante and interim efficiency we calibrate our model to quantify such a welfare trade off and discuss the policy implications of our results

optimal financial crises empirical evidence suggests that banking panics are related to the business cycle and are not simply the result of sunspots panics occur when depositors perceive that the returns on bank assets are going to be unusually low we develop a simple model of this in this setting bank runs can be first best efficient they allow efficient risk sharing between early and late withdrawing depositors and they allow banks to hold efficient portfolios however if costly runs or markets for risky assets are introduced central bank intervention of the right kind can lead to a pareto improvement in welfare from the earliest times banks have been plagued by the problem of bank runs in which many or all of the bank s depositors attempt to withdraw their funds simultaneously because banks issue liquid liabilities in the form of deposit contracts but invest in illiquid assets in the form of loans they are vulnerable to runs that can lead to closure and liquidation a financial crisis or banking panic occurs when depositors at many or all of the banks in a region or a country attempt to withdraw their funds simultaneously prior to the twentieth century banking panics occurred frequently in europe and the united states panics were generally regarded as a bad thing and the development of central banks to eliminate panics and ensure financial stability has been an important feature of the history of financial systems it has been a long and involved process the first cerntral bank the bank of sweden was established more than 300 years ago the bank of england played an especially important role in the development of effective stabilization policies in the eighteenth and nineteenth centuries by the end of the nineteenth century banking panics had been eliminated in europe the last true panic in england was the overend gurney company crisis of 1866

impacts of urbanization and industrialization on energy consumption co2 emissions does the level of development matter urbanization and industrialization have significant impacts on energy consumption and co2 emissions but their relationship varies at different stages of economic development taking cognizance of heterogeneity and the ratchet effect this paper adopts the stochastic impacts by regression on population affluence and technology stirpat framework as a starting point and re estimates the relationship using different panel date models the main results are obtained by dynamic panel threshold regression models which divide a balanced panel dataset of 73 countries over the period of 1971 2010 into four groups according to their annual income levels the key results are 1 in the low income group urbanization decreases energy consumption but increases co2 emissions 2 in the middle low income and high income groups industrialization decreases energy consumption but increases co2 emissions while urbanization significantly increases both energy consumption and co2 emissions 3 for the middle high income group urbanization does not significantly affect energy consumption but does hinder the growth of emissions while industrialization was found to have an insignificant impact on energy consumption and co2 emissions 4 from the population perspective it produces positive effects on energy consumption and also increases emissions except for the high income group these novel methodology and findings reveal that different development strategies of urbanization and industrialization should be pursued depending on the levels of income in a bid to conserve energy and reduce emissions

credit rationing and payment incentives a model of borrowing for production is presented where default leads to exclusion from the capital market this means contracts are enforceable provided the current payment is less than or equal to the value of future access to the capital market the main result of the paper is to show that if this constraint binds then credit is rationed

the role of demandable debt in structuring optimal banking arrangements demandable debt finance by banks warrants explanation because it entails costs of bank suspension liquidation and idle reserve holdings an explanation is developed in which demandable debt provides incentive compatible intermediation where the banker has comparative advantage in allocating investment funds but may act against the interests of uninformed depositors demandable debt attracts funds by giving depositors an option to force liquidation its usefulness in transacting follows from information sharing between monitors and nonmonitors copyright 1991 by american economic association

crisis costs and debtor discipline the efficacy of public policy in sovereign debt crises abstract recent debate on the reform of the international financial architecture has highlighted the potentially important role of the official sector in crisis management we examine how such public intervention in sovereign debt crises affects efficiency ex ante and ex post our results shed light on the scale of capital inflows and the implications for debtor country output of such a regime the efficacy of measures such as officially sanctioned stays on creditor litigation depend critically on the quality of public sector surveillance and the size of the costs of sovereign debt crises

foreign law bonds can they reduce sovereign borrowing costs abstract governments often issue bonds in foreign jurisdictions which can provide additional legal protection vis a vis domestic bonds this paper studies the effect of this jurisdiction choice on bond prices we test whether foreign law bonds trade at a premium compared to domestic law bonds we use the euro area 2006 2013 as a unique testing ground controlling for currency risk liquidity risk and term structure foreign law bonds indeed carry significantly lower yields in distress periods and this effect rises as the risk of a sovereign default increases these results indicate that in times of crisis governments can borrow at lower rates under foreign law

sovereign liquidity crises the strategic case for a payments standstill is sovereign borrowing so different from corporate debt that there is no need for bankruptcy style procedures to protect debtors with the waiver of immunity sovereign debtors who already face severe disruption from short term creditors grabbing their currency reserves are also exposed to litigious creditors trying to seize what assets they can in a race of the vultures shielding sovereign debtors from inter creditor conflict by authorised standstills on payments doubt less runs some risk of debtor s moral hazard but the lack of an orderly procedure for resolving sovereign liquidity crises means that the imf is de facto forced to bail out countries in trouble this leads to both debtor and creditor moral hazard as investors lend without monitoring knowing that their investments are essentially guaranteed the strategic case for legalising standstills is to rescue the international financial system from this time consistent trap

environment kuznets curve for co2 emissions a cointegration analysis for china abstract this study examines the long run relationship between carbon emissions and energy consumption income and foreign trade in the case of china by employing time series data of 1975 2005 in particular the study aims at testing whether environmental kuznets curve ekc relationship between co 2 emissions and per capita real gdp holds in the long run or not auto regressive distributed lag ardl methodology is employed for empirical analysis a quadratic relationship between income and co 2 emission has been found for the sample period supporting ekc relationship the results of granger causality tests indicate one way causality runs through economic growth to co 2 emissions the results of this study also indicate that the carbon emissions are mainly determined by income and energy consumption in the long run trade has a positive but statistically insignificant impact on co 2 emissions

optimal debt structure and the number of creditors within an optimal contracting framework we analyze the optimal number of creditors a company borrows from we also analyze the optimal allocation of security interests among creditors and intercreditor voting rules that govern renegotiation of debt contracts the key to our analysis is the idea that these aspects of the debt structure affect the outcome of debt renegotiation following a default debt structures that lead to inefficient renegotiation are beneficial in that they deter default but they are also costly if default is beyond a manager s control the optimal debt structure balances these effects we characterize how the optimal debt structure depends on firm characteristics such as its technology its credit rating and the market for its assets

networks and systemic risk in the financial system the complex web of exposures and interlinkages across the financial system highlights the relevance of network analysis in understanding systemic risk and guiding the design of financial regulation this paper discusses how network models and those based on epidemiological approaches in particular offer a compelling description of the structure of real world financial systems and shed light on different contagion mechanisms seen during the global financial crisis we also review how these insights may inform macroprudential risk assessment and policy in the areas of stress testing the financial system and the regulation of systemically important institutions the role of non bank financial intermediation and social networks in shaping financial system risk is also briefly considered

sovereign liquidity crises analytics and implications for public policy abstract this paper offers an analytical framework with which to assess some recent proposals for strengthening the international financial architecture we develop a model of sovereign liquidity crises that reflects two sources of financial stress weak fundamentals and self fulfilling expectations we examine the nature of the underlying co ordination game and investigate the properties of the unique equilibrium in so doing we are able to characterise the welfare costs of belief driven crises which we find to be potentially significant we also evaluate some recent policy proposals including prudent debt and liquidity management capital controls greater information disclosure and the efficacy of monetary policy tightening in the midst of crisis

market structure and innovation a survey economics we all recite deals with allocation of limited resources towards satisfaction of unlimited wants resources are typically identified as land labor and capital plus a technology that determines their transformation into consumer goods disparity between the available goods and services and the desired gives rise to scarcity and the question of what how and for whom to produce the focus then shifts to description and evaluation of alternative resource allocation mechanisms for making the choices the pareto criterion by which an allocation of resources is deemed efficient if any reallocation improving the position of some individual worsens the position of others is a commonly employed gauge of a mechanism s performance in the absence of externalities increasing returns to scale and uncertainty a perfectly competitive market system yields a pareto optimal allocation of resources this underlies the view that individual self interest is compatible with society s interest the further conclusion that pareto optimality may not be achieved via the market system in the presence of monopoly elements provides an economic rationale for antitrust laws the objective of a resource allocation mechanism appears to be according to the analysis described above to make the best of available resources the alternative objective of relaxing constraints through expanding the resource base or developing new technology seems to be beyond its scope thus until rather recently technical advance had been regarded in the mainstream of economic theory as unmotivated by the quest for profits and substantially unaffected by resource allocation instead as j schmookler observed technology had been viewed as a parameter like the weather affecting the outcome of resource allocations but itself unaffected by them 84 1965 evidence that technological progress has significantly contributed to growth in productivity together with a substantial increase in research and development activity largely financed by government and carried out by industry see f machlup 51 1962 may have spurred reconsideration of this view once technical advance is regarded as an economic variable it is natural to in

asset bubbles leverage and lifeboats elements of the east asian crisis collapsing credit markets have been blamed for the depth and persistence of the great depression in the united states could similar mechanisms have played a role in ending the east asian economic miracle and in creating fragility in global financial markets after a brief account of the nature of the east asian crises of 1997 8 we use the framework of highly leveraged fully collaterised firms due to kiyotaki and moore 1997 to explore the impact of a credit crunch the paper emphasises the fragility of equilibrium and how rapidly boom can turn to bust

what causes pm2 5 pollution cross economy empirical analysis from socioeconomic perspective abstract is it true that as the mainstream intuition asserts urbanization and industrialization are the two main socioeconomic drivers of pm2 5 how do the two trends affect pm2 5 emission this paper quantitatively analyzes the socioeconomic drivers of pm2 5 through assessment on stochastic impacts by regression on population affluence and technology stripat based on the panel data of 79 developing countries over 2001 2010 the average levels of pm2 5 pollution are calculated using remote sensing data overcoming the difficulties that developing countries are in lack of pm2 5 monitors and that point data cannot reflect the overall level of pm2 5 pollution on a large scale squared terms of income and urbanization and their cross term are included in the regression models respectively to analyze the possible heterogeneous impacts on pm2 5 emissions in different development stages the results show that income urbanization and service sector have significant impact on pm2 5 pollution income has a positive effect on pm2 5 all the time but the effect decreases as the level of urbanization or income goes up an inverted u relationship exists between urbanization and pm2 5 in which pm2 5 pollution positively correlates with a low level of income or urbanization but negatively at a high level policy recommendations from the perspective of macro level social and economic regulation are provided for developing economies to reduce pm2 5 pollution