bidding for contracts in a competitive procurement a buyer seeks to institute a bidding and contracting procedure which selects the most efficient firm to undertake the contract while offering terms that promote risk sharing between buyer and contractor this paper develops a model to analyze formally the trade off between the objectives of risk sharing and efficient contractor selection

transmission of the financial and sovereign debt crises to the emu stock prices cds spreads and exchange rates abstract this paper tests for the transmission of the 2007 2010 financial and sovereign debt crises to fifteen emu countries we use daily data from 2003 to 2010 on country financial and non financial stock market indexes to analyze the stock market returns for three country groups within emu north south and small the following results hold for both the north and south european countries while the smallest countries seem to be relatively isolated from international events first we find strong evidence of crisis transmission to european non financials from us non financials but not for financials second in order to test how the sovereign debt crisis affects stock market developments we split the crisis in pre and post lehman sub periods results show that financials become significantly more dependent on changes in the difference between the greek and german cds spreads after lehman s collapse compared to the pre lehman sub period however this increase is much smaller for non financials third before the crisis euro appreciations coincide with european stock market decreases whereas this relationship reverses during the crisis finally this reversal seems to be triggered by lehman s collapse

contagion during the greek sovereign debt crisis abstract we examine the impact of news about greece and news about a greek bailout on bank stock prices in 2010 using data for 48 european banks we identify the twenty days with extreme returns on greek sovereign bonds and categorise the news events during those days into news about greece and news about the prospects of a greek bailout we find that except for greek banks news about greece does not lead to abnormal returns while news about a bailout does even for banks without any exposure to greece or other highly indebted euro countries this finding suggests that markets consider news about the bailout to be a signal of european governments willingness in general to use public funds to combat the financial crisis sovereign bond prices of portugal ireland and spain respond to both news about greece and news about a greek bailout

time preference and international lending and borrowing in an overlapping generations model two economies represented by diamond type overlapping generations models and differing only in their pure rates of time preference are joined together capital formation balance of payments behavior and welfare are compared under autarky and openness with a positive natural rate of growth the low time preference country runs a current account surplus in the steady state but not necessarily outside it if preexisting capital is not shiftable between countries integration in the world economy makes the high time preference country worse off in the short run the ranking of stationary utility levels under autarky and openness is ambiguous

inflation interest rates and welfare this paper develops a simple general equilibrium model of a monetary economy with a capital market money demand arises from a cash in advance constraint rather than from any direct role in the utility function and uncertainty gives rise to a meaningful portfolio choice between money and bonds we show that velocity is increasing in the rate of inflation and that the optimal monetary policy is that which maximizes real balances we also show that the real rate of interest is not invariant to monetary policy inflation lowers the real rate

pitfalls in the use of systemic risk measures we examine pitfalls in the use of return based measures of systemic risk contributions srcs for both linear and nonlinear return frameworks assuming normal and heavy tailed distributions we identify nonexotic cases in which a change in a bank s systematic risk idiosyncratic risk size or contagiousness increases the risk of the system but lowers the measured src of the bank assessments based on estimated srcs could thus produce false interpretations and incentives we also identify potentially adverse side effects a change in a bank s risk structure can make the measured src of its competitors increase more strongly than its own

putting renewable energy auctions into action an agent based model of onshore wind power auctions in germany abstract the following analysis looks into auctions for renewable energy specifically onshore wind power in germany following an agent based modeling approach the two most commonly applied auction pricing rules are compared uniform and pay as bid and first conclusions on outcomes are drawn for future policy design the auctions are modeled to closely represent the auction design foreseen in the german renewable energy sources act eeg 2017 and replicate their parameters the analysis draws on auction theory for both pricing schemes individually rational agents with independent valuation are assumed as support for renewable electricity through auctions is to be established permanently and auction rounds will be held multi annually a further focus lies on agents learning over time by adapting their behavior to new information the model results show that pay as bid exhibits lower prices and thus support costs than uniform pricing whereas allocative efficiency suffers under pay as bid over time one can observe a decline in the strike price which is due to learning effects whereas agents profits increase in the course of the auctions furthermore smaller actors will experience difficulties and agent diversity is likely to suffer in the long term if this is not accounted for in other ways

this time is the same using bank performance in 1998 to explain bank performance during the recent financial crisis are some banks prone to perform poorly during crises if yes why in this paper we show that a bank s stock return performance during the 1998 crisis predicts its stock return performance and probability of failure during the recent financial crisis this effect is economically large our findings are consistent with persistence in a bank s risk culture and or aspects of its business model that make its performance sensitive to crises banks that relied more on short term funding had more leverage and grew more are more likely to be banks that performed poorly in both crises

measuring the subprime crisis contagion evidence of change point analysis of copula functions in this paper we first determine the existence of structural changes in the dependence between time series of equity index returns of two markets using the change point testing method the method is based on archimedean copula functions which are able to comprehensively describe dependence characteristics of random variables the degree of financial contagion between markets is subsequently estimated using the tail dependence coefficient of copula functions before and after the change point we empirically test our method by investigating financial contagion during the subprime crisis between the us s p 500 index and five asian markets namely china japan korea hong kong and taiwan our results show that a statistically significant change point exists in the dependence between the us market and all asian stock markets except taiwan the upper tail dependence is larger after the time of change implying the existence of contagion during the banking crisis between the us and the asian economies the degree of financial contagion is also estimated and found to be consistent with market events and media reports during that period

deficits and intergenerational welfare in open economies this paper deals with public debt in open economies extending diamond s overlapping generations model to a small open economy as well as an international equilibrium of two large economies it focuses on the intergenerational welfare redistributions caused by an increase in public debt triggered by a temporary government budget deficit and shows how these redistributions differ in open and closed economies the interplay between the deficits in the government budget and the current account is also analyzed it is shown how a single period with a government deficit can be followed by a sequence of periods with a deficit in the current account

interest rates and currency prices in a two country world abstract this paper is a theoretical study of the determination of prices interest rates and currency exchange rates set in an infinitely lived two country world which is subject both to stochastic endowment shocks and to monetary instability formulas are obtained for pricing all equity claims nominally denominated bonds and currencies and these formulas are related to earlier closely related results in the theories of money finance international trade

the structure and degree of dependence a quantile regression approach abstract the copula function defines the degree of dependence and the structure of dependence this paper proposes an alternative framework to decompose the dependence using quantile regression we demonstrate that the methodology provides a detailed picture of dependence including asymmetric and non linear relationships in addition changes in the degree or structure of dependence can be modeled and tested for each quantile of the distribution the empirical part applies the framework to three different sets of financial time series and demonstrates substantial differences in dependence patterns among asset classes and through time the analysis of 54 global equity markets shows that detailed information about the structure of dependence is crucial to adequately assess the benefits of diversification in normal times and crisis times

credit default swaps has the gfc influenced perceptions of their utility for banks credit default swaps cdss are considered as one of the most versatile financial innovations of the 21st century since its inception the credit derivatives market has grown to a peak of 64 trillion in 2008 in terms of gross notional values cont 2010 however after the onset of the gfc this market has decreased to a large extent while there is evidence that promotes the risk reduction properties of cdss there is a growing body of research post gfc that identifies destabilising effects of these instruments in this paper i review the relevant scholarly literature and provide evidence of how the views on cdss have changed post gfc due a deeper investigation of issues such as systemic risk regulatory arbitrage information asymmetry and risk taking among others in the banking industry this paper provides a survey of the literature of views for and against the use of cdss during pre and post gfc periods and finally concludes that in comparison to the pre gfc period post gfc there is a significant increase in the literature that highlights the detrimental nature of cdss

econometric issues in the analysis of contagion this paper presents a canonical econometric model of contagion and investigates the conditions under which contagion can be distinguished from inter dependence in a two country market set up it is shown that for a range of fundamentals the solution is not unique and for sufficiently large values of the contagion coefficients it has interesting bifurcation properties with bimodal density functions the extension of the model to herding behaviour is also briefly discussed to identify contagion effects in the presence of inter dependencies the equations for the individual markets or countries must contain country market specific forcing variables this sheds doubt on the general validity of the correlation based tests of contagions recently proposed in the literature which do not involve any country market specific fundamentals finally we show that ignoring inter dependence can introduce an upward bias in the estimate of the contagion coefficient and using monte carlo experiments we further show that this bias could be substantial

on optimal competitive contracting we present an example of risk neutral bid taker and bidders in which the bid taker obtains a greater expected revenue from auctioning an inefficient contract than from auctioning an efficient contract this occurs because in going from the efficient contract to an inefficient but almost efficient contract the winning bidder s expected profit decreases faster than the value of the output produced under the contract net of production costs decreases therefore the bid taker s expected revenue the value of the output less the winning bidder s expected profit increases the competitive letting of a contract introduces a factor not present when somehow letting a contract noncompetitively in particular changing the contract not only affects the efficiency of the contract but also affects the amount of the contract s value that will be captured by the contract winner as profit therefore for competitively let contracts the optimal contract for the bid taker to offer turns out less efficient than can b

the role of copulas in the housing crisis abstract due to its simplicity and familiarity the gaussian copula is popular in calculating risk in collaterized debt obligations but it imposes asymptotic independence such that extreme events appear to be unrelated this restriction might be innocuous in normal times but during extreme events such as the housing crisis the gaussian copula might be inappropriate this paper explores various copula specifications and finds that the degree to which housing prices are related based on the gaussian copula is too small compared with real housing price data

the ems and the dollar the ems and the dollar francesco giavazzi and alberto giovannini this paper examines the behaviour of exchange rates prior to and since the inception of the european monetary system ems movements in bilateral european exchange rates tend to be associated with fluctuations in the dollar in particular the mark tends to appreciate against other european currencies when the dollar depreciates further most realignments of currencies in the ems have generally occurred after sharp movements in the dollar conventional explanations relying on portfolio diversification by investors do not seem to explain the facts fully a more satisfactory explanation is provided by the existence of capital controls these limit the mobility of assets and ensure an asymmetric response by european currencies to movements in the dollar these capital controls are in the absence of coordinated monetary policy essential to the smooth working of the ems however at the same time they limit the scope for the further integration of european capital markets thus the ems is not a step on the road to greater financial integration indeed it is a cul de sac

currency crises sunspots and markov switching regimes abstract this paper investigates the theoretical properties of a class of escape clause models of currency crises as well as their applicability to empirical work we show that under some conditions these models give rise to an arbitrarily large number of equilibria as well as cyclic or chaotic dynamics for the devaluation expectations we then propose an econometric technique based on the markov switching regimes framework by which these models can be brought to the data we illustrate this empirical approach by studying the experience of the french franc between 1987 and 1993 and find that the model performs significantly better when it allows the devaluation expectations to be influenced by sunspots

the 2007 2009 financial crisis changing market dynamics and the impact of credit supply and aggregate demand sensitivity this article singles out the determinants of changes in us firms systematic risk and idiosyncratic return induced by the 2007 2009 financial crisis after establishing that systematic risk changes during the crisis the results show that higher operational and financial leverage coincide with an increase in systematic risk while high cash availability is associated with a decrease in systematic risk the crisis induced idiosyncratic return worsens with increasing financial leverage higher sensitivity to aggregate demand shocks and banking sector problems and lower operational leverage additional results show that the aforementioned variables have economically large effects on firm performance during the crisis

capital and credit market integration and real economic contagion during the global financial crisis abstract this study investigates the role of financial integration in the spread of global financial crisis in particular this study shows how the effect of the crisis on real business cycle co movement varied for capital and credit market integration using a sample of 58 countries in 2001 2013 during the global financial crisis the united states the epicenter of the crisis experienced a severe downturn in the real economy and other countries followed suit we find that during the global financial crisis the business cycle co movements between the united states and the rest of the world were stronger when the level of capital market integration between them was higher however the co movements were weaker when the level of credit market integration was higher these findings are robust even when including investment channels local fundamental factors endogenous policy responses across countries and alternative measures for financial integration and business cycle co movements

the role of the banking system in the international transmission of shocks paper analyzes the role of the banking system in the international transmission of financial shocks a channel of transmission is defined as a mechanism through which a financial crisis in one country induces a financial crisis in another country channe ls involving banks operate through changes in the capital adequacy ratios of a common lender and in the value of collateral of domestic borrowers through bank runs and bank panics and through moral hazard recent empirical evidence points to the significant effects of the common lchannel on the probability of a financial crisis while mitigating the role of bank runs and remaining inconclusive about moral hazard thus we introduce a series of indices of vulnerability to the common lender channel that improve existing measures by taking into account both the borrower s dependence on foreign loans and the lender s exposure to a single country by comparing the degree of vulnerabil ity to the common lender channel during the 1990s major crises we find that vulnerability was higher in the asia pacific region in 1997 and especially in the five countries most involved in the crisis than in latin america and east europe vulnerability was significantly lower in 2000 for almost all the countries in our sample due to both a more even distribution of liabilities on the part of developing countries and a higher degree of diversification of bank investments from the three main lending countries united states japan germany

big elephants in small ponds do large traders make financial markets more aggressive abstract market participants often suspect that large traders have a disproportionate effect on financial markets increasing the aggressiveness of market responses prior studies have shown that the impact of a large trader on a currency crisis depends positively on his size and informational position by contrast this article highlights the role that market sentiment has on the impact of a large trader if the market believes that fundamentals are weak then the probability of a crisis depends positively on the trader s size but negatively on the precision of his information with these effects reversed in a generally optimistic market a large player therefore need not make market responses more aggressive

unravelling financial market linkages during crises an empirical model of multiple asset classes across countries is formulated in a latent factor framework a special feature of the model is that financial market linkages during periods of financial crises including spillover and contagion effects are formally specified the model also captures a range of common factors including global shocks country and market shocks and idiosyncratic shocks the framework is applied to modelling linkages between currency and equity markets during the east asian financial crisis of 1997 98 the results provide strong evidence that cross market links are important spillovers have a relatively larger effect on volatility than contagion but both are statistically significant

correlations in price changes and volatility across international stock markets the short run interdependence of prices and price volatility across three major international stock markets is studied daily opening and closing prices of major stock indexes for the tokyo london and new york stock markets are examined the analysis utilizes the autoregressive conditionally heteroskedastic arch family of statistical models to explore these pricing relationships evidence of price volatility spillovers from new york to tokyo london to tokyo and new york to london is observed but no price volatility spillover effects in other directions are found for the pre october 1987 period article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

what do we learn from recall consumption data in this paper we use two complementary italian data sources the 1995 istat and bank of italy household surveys to generate householdspecific nondurable expenditure in the bank of italy sample that contains relatively high quality income data we show that food expenditure data are of comparable quality and informational content across the two surveys once we properly account for heaping rounding and time averaging we therefore depart from standard practice and rely on the estimation of an inverse engel curve on istat data to impute nondurable expenditure to bank of italy observations and show how we can use these estimates to analyze consumption age profiles conditional on demographics our key result is that predictions based on a standard set of demographic and socioeconomic indicators are quite different from predictions that also condition on simulated food consumption in the sense that their age profile is less in line with the implications of the standard consumer intertemporal optimization problem

are currency crises self fulfilling abstract this paper studies the respective roles of the fundamentals and self fulfilling speculation in currency crises we first present a model of a fixed exchange rate system in which self fulfilling speculation can arise following a bifurcation in the fundamentals we then estimate the model in the case of the 1992 3 crisis of the french franc and find some evidence that self fulfilling speculation was at work

exchange risk political risk and macroeconomic equilibrium with the advent of increased exchange rate flexibility the role of policy and the transmission of economic disturbances under flexible rates have become topics of considerable interest j marcus fleming 1962 and robert mundell 1963 in their early analysis of the theory of policy in open economies emphasized the importance of the degree of capital mobility subsequently a number of authors have analyzed the implication of the degree of capital mobility for exchange rate and income determination in open economies see for example pentti kouri and michael porter 1974 william branson 1975 1979 lance girton and dale henderson 1976 and turnovsky 1976 the polar case of perfect capital mobility has received most attention capital is perfectly mobile when investors consider domestic bonds denominated in domestic currency and foreign bonds denominated in foreign currency to be perfect substitutes two factors may cause perfect substitutability to break down one is exchange risk the values of the two bonds are defined in terms of different currencies and the exchange rate at the date of maturation is uncertain the second is default risk investors may perceive that foreign bonds are more subject to the risk of default than are domestic bonds for one thing in the event of default the investor must pursue his claim through a foreign legal system which is likely to be costly robert aliber 1973 terms differences in default risk arising from the foreignness of assets as political risk where domestic and foreign securities are assumed to be only imperfect substitutes it is important to distinguish the degree of imperfection due to each of these sources of risk while this distinction has been noted in optimal portfolio models developed by authors such as kouri 1976 and michael alder and bernard dumas 1977 it has not been brought out in the current macro literature the objective of the present paper is to investigate the macroeconomic consequences of this distinction and to show how it may be crucial in assessing the effects of various macroeconomic disturbances under varying degrees of capital mobility we find that well known results about the effects of increased capital mobility on the efficacy of monetary policy are correct when the increased mobility is due to a reduction in exchange risk but not necessarily so when it is due to a reduction in default risk section i formulates a general equilibrium macroeconomic model which embodies the distinction between these two sources of risk we assume that the economy is small so that it treats certain characteristics of the foreign economy as parametric section ii carries out certain comparative static exercises with this model specifically it considers some important relationships between the available policy instruments and endogenous variables and shows how these are affected by the degree of capital mobility in the two senses in which this term is defined in particular we show that as long as there is a possibility of default there exists an independent role for forward market intervention in the limiting case of no default risk yale university and university of illinois respectively see peter kenen 1965 for an early analysis of the forward market incorporating potential default political risk may derive from the threat of exchange controls as well as from the threat of outright debt repudiation in either case the risk may not be the loss of the total net worth of the investment when the threat derives from exchange controls the expected value of net worth may even be preserved but if payment is delayed forward cover obtained for the investment will no longer be appropriate for our purposes it is the risk that repayment not occur on the date for which the forward cover is arranged thereby exposing the investor to exchange risk that is relevant our analysis could easily be modified to incorporate a preservation of some or all net worth in the event of default see eaton and mark gersovitz 1981 for a model in which the probability of default is endogenous

open market operations in an overlapping generations model previous overlapping generations models implied effects for open market operations that conflict dramatically with the observed positive correlation between money and the price level and have been criticized for failing to model the medium of exchange role of money the purposes of this paper are to develop an overlapping generations model that gives money a medium of exchange role and that is consistent with the evidence and to point out the crucial role of the assumptions made in earlier models about the interaction of monetary and fiscal policy and about the supply side effects of open market operations

volatility spillovers and the effect of news announcements we examine the effect of us and european news announcements on the spillover of volatility across us and european stock markets using synchronously observed international implied volatility indices at a daily frequency we find significant spillovers of implied volatility between us and european markets as well as within european markets we observe a stark contrast in the effect of scheduled versus unscheduled news releases scheduled unscheduled news releases resolve create information uncertainty leading to a decrease increase in implied volatility nevertheless news announcements do not fully explain the volatility spillovers although they do affect the magnitude of volatility spillovers our results are robust to extreme market events such as the recent financial crisis and provide evidence of volatility contagion across markets

economic science an experimental approach for teaching and research economics experiments have been used to study theories and policies that are often difficult to evaluate with data from naturally occurring markets this paper is a selective summary of my work in the main areas of experimental economics markets individual decisions games and public choice the discussion pertains both to scientific discoveries and teaching innovations

transmission of government default risk in the eurozone abstract this paper analyzes the reasons behind the rising ten year government bond spreads in the eurozone during the recent euro debt crisis we develop a structural vector autoregressive model that allows us to test whether the upsurges in the spreads reflect breaks in the instantaneous shock propagation mechanisms between the spreads contagion changing dynamical effects or changing country specific risk factors especially a new approach to test the stability of the instantaneous shock propagation mechanisms is introduced our results show that although contagion appears as the single most important reason for the increasing spreads there are notable differences between the countries for example and ireland spain and italy see statistically significant increases in their country specific risk factors

renewables diffusion and contagion effect in italian regional electricity markets assessment and policy implications abstract in the electricity market sudden price jumps occur more frequently than in other markets due to the peculiarity of electricity furthermore the structural spot characteristics of the electricity market determine high price variability all these characteristics have been accentuated by the dramatic increase of renewable energy supply in italy starting in 2010 these features suggest the possibility of contagion effects across italian regional electricity markets considering contagion such as a sudden and significant increase in cross market links arising from a shock to a specific market in this paper we investigate whether such a renewable energy increase has affected the contagion behavior in the italian electricity spot market taking into account both the difference between interdependence and contagion and the direction of the shock we find empirical evidence with significant tests that no changes have occurred in interdependence mechanism nor in contagion effects due to renewable energy sources development in italy

using nash bargaining to design project management contracts under cost uncertainty abstract in the design of procurement contracts cost sharing wherein the contractor receives a fixed fee plus a fraction of his cost is common when the cost for completing the project is uncertain we determine the best cost sharing contract between a risk neutral project manager and a risk averse contractor when negotiation proceeds in accord with nash bargaining we examine the characteristics of the contract when the contractor can invest to reduce the mean and or the uncertainty of the project cost we show that cost plus contracts dominate fixed price contracts as well as all other cost sharing contracts in order to extend our analysis to the case when the value of the project itself is uncertain we employ the recent method of embedded nash bargaining finally we generalize our main result by allowing an asymmetric nash bargaining solution

international shock transmission after the lehman brothers collapse evidence from syndicated lending after lehman brothers filed for bankruptcy in september 2008 cross border bank lending contracted sharply to explain the severity and variation in this contraction we analyze detailed data on cross border syndicated lending by 75 banks to 59 countries we find that banks that had to write down sub prime assets refinance large amounts of long term debt and experienced sharp declines in their market to book ratio transmitted these shocks across borders by curtailing their lending abroad while shocked banks differentiated between countries in much the same way as less constrained banks they restricted their lending more to small borrowers

contagion as a domino effect in global stock markets this paper shows that stock market contagion occurs as a domino effect where confined local crashes evolve into more widespread crashes using a novel framework based on ordered logit regressions we model the occurrence of local regional and global crashes as a function of their past occurrences and financial variables we find significant evidence that global crashes do not occur abruptly but are preceded by local and regional crashes besides this form of contagion interdependence shows up by the effect of interest rates bond returns and stock market volatility on crash probabilities when it comes to forecasting global crashes our model outperforms a binomial model for global crashes only

spread the news the impact of news on the european sovereign bond markets during the crisis we investigate how news affected domestic interest spreads vis a vis germany and how it propagated to other countries during the recent crisis period thereby distinguishing between the so called giips countries and other european countries we make original use of the eurointelligence newsflash to construct news variables based on the amount of news that is released on a country on a given date we find that more news on average raises the domestic interest spread of giips countries since september 2009 in addition we find that it leads to an increase in the interest spreads of other giips countries the magnitude of this effect is related to cross border bank holdings a split of news into bad and good news shows that the upward pressure on domestic and foreign interest spreads is driven by bad news we also find spillovers of bad news from giips countries onto non giips countries however the magnitude of these spillovers is substantially smaller than that to other giips countries

gaining and losing erm credibility the case of the united kingdom the model of this paper highlights two aspects of credibility signaling the type of government which is assumed not to be known and for any type the likelihood that if circumstances are sufficiently unfavorable a devaluation will be impossible to avoid since not to do so would go against the government s interests these two factors have opposite implications for the link between unemployment and interest differentials high unemployment signals a tough government but also makes it less likely that even a tough government will maintain an existing parity copyright 1995 by royal economic society

incentive contracts and competitive bidding an increasing segment of economic activity is taking place in nonmarket situations in which economic agents act outside the traditional markets or create markets to deal with specific resource allocation problems one such problem involves the selection by a buyer of a contractor using a competitive bidding process competitive bidding is used extensively by the government for the selection of suppliers of goods and services and for the sale of resources such as offshore oil leases firms may use competitive bidding for the selection of certain suppliers of factor inputs and may attempt to sell certain products in markets in which competitive price quoting is the established market mechanism this paper is concerned with a bidding process in which a firm has an opportunity to bid on a project under the terms of an incentive contract incentive contracts

market sentiment and macroeconomic fluctuations under pegged exchange rates this paper models changes in market sentiment as a temporary increase in the premium faced by domestic private borrowers on world capital markets the effects of this shock are studied in an intertemporal optimizing framework of a fixed exchange rate economy where firms demand for working capital is financed by bank credit depending on the perceived length of this shock the model is capable of predicting a rise in domestic interest rates capital outflows and a drop in official reserves a reduction in bank deposits and the supply of credit a fall in private consumption a contraction in output and an increase in unemployment these predictions are consistent with observed facts associated with several recent episodes of turbulence on international financial markets

business cycle transmission from the us to germany a structural factor approach abstract this paper investigates the transmission of us macroeconomic shocks to germany using a large dimensional structural dynamic factor model this framework allows us to investigate many transmission channels simultaneously including new channels such as stock markets foreign direct investment bank lending and the confidence channel we find that us shocks affect the us and germany largely symmetrically trade seems to be the most relevant transmission channel monetary policy reactions to strong price movements seem to play a role as well no clear conclusion can be drawn yet on the role of financial markets and the confidence channel negative domestic influences apparently more than offset positive us influences in the german economy between 1995 and 2000 but the us recession in 2001 appeared to be the main culprit in the german slump

international market linkages and optimal monetary policy abstract the interrelation among portfolio choice and labor supply decisions and real balance effects is examined under flexible exchange rates on the asset menu are home currency domestic government bonds and foreign bonds with commodity market linkages the real balance effect is highlighted as the inefficiency of an economy with positive government bonds is demonstrated while the additional linkage of interest rates through covered interest parity may transform an economy where only money is useful into an economy in which both money and government bonds are beneficial

relative risk aversion and the transmission of financial crises we study how investor behavior affects the transmission of financial crises if investors exhibit decreasing relative risk aversion then negative wealth shocks increase the risk premium required to hold risky assets we integrate this into a second generation model of currency crises which allows for contagion through changes in fundamentals investor behavior can be a transmission channel of financial crises as changes in risk premia increase the coverage ratio and makes the defense of a peg less attractive for the policy maker the feedback effect of the risk premia on the probability of devaluation also makes multiple equilibria more likely the possible stabilization effects of capital controls and a tobin tax on the international transmission of financial crises are also studied

ex post information in auctions assumptions maskin and riley 1984 show that when the amount a buyer is willing to pay for the auctioned object is not independent of his wealth expected revenue tends to be lower under open bidding in contrast milgrom and weber 1982 relax the assumption that valuations are independent and assume instead that buyers private estimates of the item s value are affiliated a buyer with a high estimate then tends to believe that other buyers will have higher estimates as well maintaining the other assumptions milgrom and weber show that expected revenue is higher in the open ascending bid auction the intuition behind this result is that in sealed high bid auctions a buyer s bid is determined not only by his own beliefs but via their bids by the beliefs of those with lower estimates a buyer with a low estimate believes that others are more likely to have low estimates as well he therefore bids less aggressively it follows that a buyer can beat all opponents who have lower estimates with a bid which is lower than it would be if beliefs were independent 2 milgrom and weber also show that if the seller purchases and then publicly reveals information which is positively linked to buyers valuations this also raises expected gross revenue from an auction the intuition here is that this helps to reduce the difference in bidders willingness to pay 3 that such a reduction should raise expected revenue is easily understood for the limiting case in which the seller s information includes all the buyers private information for then all buyer asymmetry is eliminated and so expected buyer profit is bid away to zero the seller therefore reaps the entire surplus in the following pages the implications of correlated signals are further explored while milgrom and weber emphasized the potential gains to a seller who reveals information ex ante the focus here is on ex post information in section 2 it is shown that under weak assumptions the sealed high bid auction is dominated by any auction

are stock market crises contagious the role of crisis definitions abstract financial contagion studies generally examine whether co movement between markets increases during a crisis we use a flexible co movement measure to examine how conclusions of such analyses depend on the sample chosen as the crisis to this end we analyse stock market co movement during the 1997 asian crisis and the 2007 global financial crisis for all possible source countries and for all possible time periods or extreme return quantiles this way we account for the main crisis dating approaches adopted in the literature our results suggest there is no clear relationship between excess co movement and commonly used crisis samples

rational contagion and the globalization of securities markets this paper argues that globalization may promote contagion by weakening incentives for gathering costly information and by strengthening incentives for imitating arbitrary market portfolios in the presence of short selling constraints the gain of gathering information at a fixed cost may diminish as markets grow moreover if a portfolio manager s marginal cost for yielding below market returns exceeds the marginal gain for above market returns there is a range of optimal portfolios in which all investors imitate arbitrary market portfolios and this range widens as the market grows numerical simulations suggest that these frictions can have significant implications for capital flows in emerging markets

external public debt trade linkages and contagion during the eurozone crisis against the backdrop of the contagion literature the paper analyses the impact of financial and trade linkages on sovereign bond spreads in the eurozone crisis using quarterly data for a sample of emu countries during the period 2000 13 we estimate fixed effect panel models with driscoll and kraay standard errors that are robust to general forms of spatial and temporal dependence our main results can be summarised as follows first we suggest that the sudden stop of capital inflow towards the peripheral sovereign debt triggered a re segmentation of financial markets and economic systems along national borders with negative implications for risk sharing and the efficient allocation of capital the home bias effect that is the increase in the share of sovereign debt held by domestic banks worsened the country specific risk because the twin crisis sovereign and banking began to be conceived as more closely intertwined within countries than before second the structure of international trade helps to account for the geographic scope of contagion even after controlling for macroeconomic and fiscal vulnerabilities finally the substitution effect of public debt securities of stand alone emerging countries has affected more the sovereign spreads in the core than in the periphery

public private partnerships stimulating competition in a dynamic market this paper sets forth a public private partnership competition policy that mitigates the appropriability problems associated with innovation that occur in a dynamic market when competitive pressures are present we illustrate the applicability of our policy proposal using the results from an analysis of research projects jointly funded by the advanced technology program atp and the private partners our analysis illustrates that in the absence of atp funding these projects would not have been undertaken by private sector firms and that the social rate of return from the projects is substantial we also posit a mechanism whereby atp or any public agency can partner with industry to ensure that its public funds are being efficiently allocated

evaluation of contagion or interdependence in the financial crises of asia and latin america considering the macroeconomic fundamentals this article investigates the existence of contagion between countries on the basis of an analysis of returns for stock indices over the period 1994 to 2003 the econometrics methodology used is that of multivariate generalized autoregressive conditional heteroscedasticity garch family volatility models particularly the dynamic conditional correlation dcc models in the form proposed by engle and sheppard 2001 the returns were duly corrected for a series of country specific fundamentals the relevance of this procedure is highlighted in the literature by the work of pesaran and pick 2003 the results obtained in this article provide evidence favourable for the hypothesis of regional contagion in both latin america and asia as a rule contagion spread from the asian crisis to latin america but not in the opposite direction

competitive devaluations toward a welfare based approach abstract this paper revisits the international transmission of exchange rate shocks in a multicountry economy providing a choice theoretic framework for the policy analysis of competitive devaluations as opposed to the traditional view a devaluation by one country does not necessarily have an adverse beggar thy neighbor effect on its trading partners because they can benefit from an improvement in their terms of trade furthermore a retaliatory devaluation need not be the optimal strategy for the neighbor countries as the induced terms of trade deterioration can be large enough to offset the gains from defending their export market share the concern over competitive devaluations reflected in the fund s charter and the system wide implications of changes in exchange rates still motivate fund policy recommendations a major fund concern in the asian crisis has been the fear that asian currencies would become so undervalued and current account surpluses so large as to damage the economies of other countries developing countries included this is one reason the fund has stressed the need first to stabilize and then to strengthen exchange rates in the asian countries now in crisis and for this purpose not to cut interest rates until the currency stabilizes and begins to appreciate

a primer on financial contagion abstract this paper presents a theoretical framework to highlight possible channels for the international transmission of financial shocks we first review the different definitions and measures of contagion adopted by the literature we then use a simple multi country asset pricing model to classify the main elements of the current debate on contagion and provide a stylized account of how a crisis in one country can spread to the world economy in particular the model shows how crises can be transmitted across countries without assuming ad hoc portfolio management rules or market imperfections finally tracking our classification we survey the results of the empirical literature on contagion

a profit sharing scheme for a two firm joint venture consider the scenario when two firms are setting up a joint venture one firm has a set of technologies and knowhow for a new product while the other contributes the necessary capital for setting up and running the venture the key issue that the two firms face in negotiating the joint venture is to determine a fair value for the technologies and knowhow this paper presents an approach by which each firm bids a price for the technology with an objective to maximize their own profits from the joint venture provided that their bids satisfy a cooperation condition the two firms settle on a price using a simple valuation formula we analyze the impact of various factors on the decision process and provide numerical results to illustrate the bidding strategies we conclude that in order to maximize their profits it is often more important for both firms to increase the chance of cooperation than to increase their own shares of the joint venture

the real effects of financial sector interventions during crises we assess the importance of supply side credit market frictions by studying the impact of bank recapitalization on firm growth in 50 countries during the recent crisis our identification strategy exploits the crisis as a shock to credit supply and combines an exogenous measure of firms dependence on external financing with policy interventions aimed at restoring bank capital we find that the growth of financially dependent firms is disproportionately positively affected by bank recapitalization this effect is quantitatively important and robust to controlling for other policies these results provide new evidence of the influence of credit market frictions on economic activity

regionality revisited an examination of the direction of spread of currency crises abstract what determines the direction of spread of currency crises we examine data on waves of currency crises in 1992 1994 1997 and 1998 to evaluate several hypotheses on the determinants of contagion we simultaneously consider trade competition financial links and institutional similarity to the ground zero country as potential drivers of contagion to overcome data limitations and account for model uncertainty we utilize bayesian methodologies hitherto unused in the empirical literature on contagion in particular we use the bayesian averaging of binary models that allows us to take into account the uncertainty regarding the appropriate set of regressors we find that institutional similarity to the ground zero country plays an important role in determining the direction of contagion in all the emerging market currency crises in our dataset we thus provide persuasive evidence in favour of the wake up call hypothesis for financial contagion trade and financial links may also play a role in determining the direction of contagion but their importance varies amongst the crisis periods

optimal financing of the government s budget taxes bonds or money financing of the government s budget in particular we consider taxation bond issuance and money creation as alternative means of financing these issues are not new some of them were extensively explored in the public finance literature some of them were explored in the monetary theory literature what we believe to be new however is that our work integrates the relevant elements from both strands of literature into a unified general equilibrium framework with this approach we are able to jointly determine the optimal combination of tax rates the rate of inflation and the interest rate on government bonds this type of analysis enables us to ask whether the rate of inflation should be positive or negative and to provide simple conditions on compensated demand elasticities which determine the answer it also enables us to reconsider milton friedman s optimum quantity of money rule in a public finance framework without lump sum taxes and to show how this rule should be modified in addition we provide insight into the desirability of a social security scheme by showing that such a program is undesirable when social security payments are financed

meteor showers or heat waves heteroskedastic intra daily volatility in the foreign exchange market this paper seeks to explain the causes of volatility clustering in exchange rates careful examination of intra daily exchange rates provides a test of two hypotheses heat waves and meteor showers the heat wave hypothesis is that the volatility has only country specific autocorrelation alternatively the meteor shower is a phenomenon of intra daily volatility spillovers from one market to the next using the garch model to specify the heteroskedasticity across intra daily market segments we find that the empirical evidence is generally against the null hypothesis of the heat wave using a volatility type of vector autoregression we examine the impact of news in one market on the time path of per hour volatility in other markets

simple probability models for project contracting there are two aspects to the process of price setting using sealed bids the project owner is interested in deploying the contract mechanism that will secure reliable service at the cheapest cost on the other hand each contractor bidding for the project is interested in winning the contract but at a price that assures him a reasonable profit margin we use a parsimonious stochastic model to compare and contrast some commonly used contracts from the point of view of the project owner we show that if the bidders are risk neutral a fixed price contract results in the smallest expected procurement cost for the project owner we introduce and analyze menu contracts and show that the expected price of a menu contract lies in between the prices of the fixed price and cost plus contracts for the same project we analyze how risk aversion and collusion which we model using concepts of stochastic dependence impacts the average winning bid price

the relation between variance and information rent in auctions abstract this paper examines the conventional wisdom expressed in mcafee and mcmillan s 1987 widely cited survey paper on auctions that links increased variance of bidder values to increased information rent we find that although the conventional wisdom does indeed hold in their 1986 model of a linear contract auction this relationship is an artifact of that particular model and cannot be generalized using samuelson s 1987 model which is similar but allows for unobservable costs we show that increased variance does not always imply increased information rent finally we give the appropriate measure of dispersion different from variance that provides the link between the bidder value distribution and information rent

predicting currency crises abstract in recent years a number of researchers have claimed success in systematically predicting which countries are more likely to suffer currency crises most notably kaminsky lizondo and reinhart 1998 this paper evaluates the klr approach to anticipating currency crises and develops and tests an alternative first we try to answer the question if we had been using the klr model in late 1996 how well armed would we have been to predict the asia crisis second we analyze a more general probit based model of predicting currency crises in the process we test several basic assumptions underlying the indicators approach

volatility spillovers in east asian financial markets a mem based approach abstract we model the interrelations of equity market volatility in eight east asian countries before during and after the asian currency crisis using a new class of asymmetric volatility multiplicative error models based on the daily range we find that dynamic propagation of volatility shocks occurs through a network of interdependencies and shocks originating in hong kong may be amplified in their transmission throughout the system posing greater risks to the region than shocks originating elsewhere although this partly explains the severity of the currency crisis we also find evidence that parameters shifted making the system more unstable during the crisis

collapsing exchange rate regimes some linear examples abstract we construct a pair of linear examples to study the collapse time of a fixed exchange rate regime the first example is a perfect foresight continuous time model which allows calculation of the exact collapse time and the tracking of reserves the second example is a discrete time stochastic model which yields an endogenous probability distribution over the collapse time and produces a forward discount of the exchange rate

competition in the economic crisis analysis of procurement auctions we study the effects of the recent economic crisis on firms bidding behavior and markups in sealed bid auctions using data from austrian construction procurements we estimate bidders construction costs within a private value auction model we find that markups of all bids submitted decrease by 1 5 percentage points in the recent economic crisis markups of winning bids decrease by 3 3 percentage points we also find that without the government stimulus package this decrease would have been larger these two pieces of evidence point to pro cyclical markups

effects of ambiguity in market experiments prior studies have shown that individuals are averse to ambiguity in probability many decisions are however made in market settings where an individual s decision is influenced by decisions of others participating in the market in this paper we extend the previous research to evaluate the effect of ambiguity on individual decisions and the resulting market price in market settings we therefore examine an important issue whether ambiguity effects persist in the face of market incentives and feedback two different market organizations the sealed bid auction and the double oral auction were employed the subjects in the experiments were graduate business students and bank executives our results show that the individual bids and market prices for lotteries with ambiguous probabilities are consistently lower than the corresponding bids and market prices for equivalent lotteries with well defined probabilities the aversion to ambiguity therefore does not vanish in market settings our results provide insights into what a manager can expect in bidding situations where the object of the sale oil leases mineral rights involves ambiguity in probability due to for example lack of information or prior experience the results may also be useful in understanding some phenomena in insurance and equity markets

transmission of the u s subprime crisis to emerging markets evidence on the decoupling recoupling hypothesis abstract we find that emerging markets appeared to be somewhat insulated from developments in u s financial markets from early 2007 to summer 2008 from that point on however emerging markets responded very strongly to the deteriorating situation in the u s financial system and real economy our regression event study focusing on 15 types of news indicates that a range of financial and real economic news emanating from the us had statistically and economically large impacts on 14 emerging markets and several news events uniformly moved markets policy measures taken in emerging markets to insulate themselves from global financial developments proved inadequate in the face of the credit crunch and decline in international trade that followed the lehman bankruptcy in september 2008

some contagion some interdependence more pitfalls in tests of financial contagion this paper develops a test of contagion in financial markets based on bivariate correlation analysis which generalizes existing tests and applies it to the international effects of the hong kong stock market crisis of october 1997 contagion is defined as a structural break in the international transmission of financial shocks for plausible values of the variance of country specific shocks in hong kong our test finds evidence of contagion for 5 countries out of a sample of 17 this is in sharp contrast with the findings of recent literature according to which there is no contagion only interdependence we show that this strong result in the literature is due to arbitrary and unrealistic restrictions on the variance of country specific shocks

bank sovereign risk spillovers in the european debt crisis this paper investigates contagion between bank risk and sovereign risk in europe over the period 2006 2011 since this period covers various stages of the banking and sovereign crisis it oers a fertile ground to analyze bank sovereign risk spillovers we de ne contagion as excess correlation i e correlation between banks and sovereigns over and above what is explained by common factors using cds spreads at the bank and at the sovereign level moreover we investigate the determinants of contagion by analyzing bank speci c as well as country speci c variables and their interaction we provide empirical evidence that various contagion channels are at work including a strong home bias in bank bond portfolios using the eba s disclosure of sovereign exposures of banks we nd that banks with a weak capital and or funding position are particularly vulnerable to risk spillovers at the country level the debt ratio is the most important driver of contagion

measuring bilateral spillover and testing contagion on sovereign bond markets in europe abstract the global financial crisis rapidly spread across borders and financial markets and also distressed eu bond markets the crisis did not hit all markets in the same way we measure the strength and direction of linkages between 16 eu sovereign bond markets using a factor augmented version of the var model in diebold and yilmaz 2009 we then provide a novel test for contagion by applying the multivariate structural break test of qu and perron 2007 on this favar detecting significant sudden changes in shock transmission results indicate substantial spillover especially between emu countries with belgium italy and spain being key markets during the financial crisis contagion has been a rather rare phenomenon limited to a few well defined moments of uncertainty on financial assistance packages for greece ireland and portugal most of the frequent surges in market co movement are driven by larger shocks rather than by contagion

a new class of tests of contagion with applications a new class of tests of contagion is proposed identifying transmission channels of financial market crises through changes in higher order moments of the distribution of returns such as coskewness applying the framework to test for contagion in real estate and equity markets following the hong kong crisis in 1997 1998 and the u s subprime crisis in 2007 shows that the coskewness based tests of contagion detect additional channels not identified by the correlation based tests implications of contagion in pricing exchange options where there is a change in higher order comoments of returns on the underlying assets are also investigated

extreme interdependence and extreme contagion between emerging markets abstract this paper uses seemingly unrelated probit techniques to separate the transmission of a crisis due to broadly defined macroeconomic interdependence from contagion due to herding avoiding some of the caveats of the more traditional cross correlation approach we find that pure contagion occurred in a limited number of country pairs generally belonging to the same region a reduction in speculative pressure can also be identified between countries in different regional blocks this seems to suggest that after an initial crisis episode investors tend to discriminate on the basis of location and common macroeconomic weakness or perceived similarity

bidding for contests the procurement of product development and production services brings special strategic considerations to the buyer seller relationship in industrial and institutional markets multiple sourcing in particular dual sourcing is a likely way of dealing with the increased risks faced by buyers however there is lack of dual sourcing models that analyze the selection and control process in an integrated fashion this omission had led to apparently contradictory findings in agency and auction theory the paper models the strategic issues for a cost containment contest between two suppliers the suppliers are drawn from several vendors who participate in a bidding competition the supplier with the lower final cost in the contest wins a larger share of the pooled profit fee propositions are derived for the optimal cost plus contest and comparisons are made with the common incentive contract for the integrated selection and control model the larger the winner s share the greater the effort the buyer can make a credible commitment to the optimal winner s share as the winner s share rises however the bid prices increase due to increased contract risk this incentive risk tradeoff determines a the optimal winner s share that minimizes expected procurement price b the corresponding profit fee bid by suppliers c the ensuing cost control effort and d the final price for the procurement comparisons with the common incentive contract tell us when the cost plus contest induces more effort and when bidding for a contest results in a lower final procurement price

contagion across us and european financial markets evidence from the cds markets abstract this study investigates whether contagion occurred during the recent global financial crisis across european and us financial markets the methodologies used to test for contagion are based on changes in correlation coskewness cokurtosis and covolatility these tests are applied to a set of bank sector cds insurance sector cds sovereign bonds equity and volatility indices the findings indicate significant evidence of contagion especially through the channels of higher order moments

second generation models of currency crises until the beginning of the 1990s currency crises were typically analyzed within the framework of a generation of models that assumed that the foreign exchange reserves of a country that was running a fixed exchange rate policy were falling because the government was running a deficit on its budget that was financed by printing money when the foreign exchange reserves reached a lower bound a speculative attack on the fixed exchange rate was launched today this theory is no longer the benchmark when explaining the occurrence of a currency crisis actually a new generation of models that seeks to take explicitly into account the costs and benefits associated with the maintenance of a fixed exchange rate has emerged this paper surveys these second generation models of currency crises this generation of models emphasizes that it is an endogenous decision if a government chooses to abandon a policy of fixed exchange rates the survey pays special attention to the fact that the second generation of currency crises models often generates multiple equilibria for the rate of devaluation given one state of the economic fundamentals a currency crisis can thus occur even if no secular trend in economic fundamentals can be identified as in recent currency crises