empirical evidence on competitive bidding some surprising results abstract this paper compares the assumptions and predictions of common values auction theory with ocs leasing data we find that the general assumption of continuous bid density functions is not supported by the empirical evidence this leads us to suggest several lines for future theoretical experimental and empirical research

measuring inflation expectations a survey data approach expectations of inflation can be important determinants of actual inflation because they influence the process of wage bargaining price setting speculative buying and financial investing decisions englander and stone 1989 a central bank given its primary objective of price stability therefore takes a natural interest in inflationary expectations of economic agents in fact as illustrated by the theoretical work of e g kydland and prescott 1977 and barro and gordon 1983 inflationary expectations of the public are an important factor determining the success of the central bank in achieving its policy goal measures of inflation expectations can be used for monetary policy purposes for example as information variables in the sense defiined by friedman 1993 or as intermediate targets in the so called direct inflation targeting strategy svensson 1996 fuhrer 1997

optimal bidding in auctions from a game theory perspective abstract the game theoretic perspective in auction bidding has provided a powerful normative framework for the analysis of auctions and it has generated an impressive volume of research contributions tracing this research we review key recent advances which have greatly expanded our understanding of the operation of auctions and produced a more accurate analysis of mechanism design and optimal bidding we follow various experimental studies which have shown that the predictive power of auction theory remains in many cases limited for this reason we concentrate on research themes which enhance the applicability of auction theory leading to more realistic descriptions of bidding behaviors we identify important innovations which expand the environment of auction bidding and carry us beyond rational decision making we conclude providing directions of future research and discussing their implications

the value of adaption climate change and timberland management abstract adaptation to exogenous change occurs on both intensive and extensive margins whether and how one accounts for human adaptation directly affects estimates of the economic consequences of environmental change estimates that are both critical in informing policy decisions and notoriously difficult to value this paper introduces and applies an analytical framework for placing an economic value on adaptation we explore the issue first in a stylized model that facilitates making concrete generalizations about the kinds of adaptations that generate high or low economic value we then test the soundness of our insights by incorporating learning and adaptive decision making into a structural dynamic forestry model where climate change is imposed exogenously and agents respond optimally using downscaled climate projections integrated with site and species specific timber productivity data we estimate the economic value of adaptation to climate change within the california timber industry we find on the intensive margin changing the rotation intervals will yield a low value of adaptation but on the extensive margin replanting more suitable tree species can yield significant value

participation constraints in the vickrey auction abstract economic agents are characterized by two privately observable parameters their willingness to pay for an item being auctioned and their reservation utility level which must be exceeded in expectation to induce them to participate in this auction this creates a situation in which the distribution of willingness to pay among the bidders is endogenous for the case in which the parameters are jointly uniformly distributed the existence of an equilibrium is proven and characterized

cross of euros the eurozone currently confronts severe short run macroeconomic adjustment problems and a deficient institutional architecture that has to be reformed in the longer run europe s efforts at economic and monetary union are historically unprecedented however the gold standard provides lessons regarding what will and won t work macroeconomically and politically in the short run while us history provides long run lessons regarding appropriate institutional structures the latter also suggests that institutional reform only happens at times of great crisis and that it cannot be taken for granted the eurozone s leaders may therefore ultimately have to take heed of the lessons of history regarding currency union breakups

equilibria in first price auctions with participation costs this paper characterizes the equilibria of first price auctions with participation costs in the independent private values environment bidders use cutoff strategies to decide whether they will participate in the auction it is shown that when bidders are homogeneous there always exists a unique symmetric equilibrium and further there is no other equilibrium when valuation distribution functions are inelastic when distribution functions are elastic at the symmetric equilibrium there exists an asymmetric equilibrium inelasticity elasticity includes concavity convexity of distribution functions as a special case we find similar results when bidders are heterogeneous

on uncertain renewable resource stocks optimal harvest policies and the value of stock surveys abstract annual harvest quotas are commonly employed in the management of renewable resource stocks commercial fisheries being a prime example such resource stocks often undergo quite significant natural fluctuations to which quotas must be adapted a further complication arises from the fact that estimates of stock abundance are often highly uncertain in this paper a bayesian approach is used to model optimal quota decisions for an uncertain fluctuating renewable resource stock

the valuation of forestry resources under stochastic prices and inventories a contingent claims approach to capital budgeting may be preferable to traditional methods where uncertainty and managers strategic reactions to changing conditions are impor tant as an example of such a case we solve the classical problem of the duration of an investment in forestry resources i e when to cut down the trees in the general case of stochastic output prices and stochastic natural growth rate and timber inventories a con tingent claims approach is used to value the forestry resources as a function of 1 sto chastic prices and inventories and 2 an asymmetric optimal production policy that incorporates the option to halt timber production temporarily i introduction classical capital budgeting techniques are based on the assumption that fu ture cash flows follow a rigid pattern and can be accurately predicted far into the future on the basis of such cash flow predictions the project is either accepted or rejected the uncertainty in the project and management s strategic reactions to changing conditions are dealt with only superficially at best a risk adjusted interest rate is employed and various deterministic scenarios are plotted out in situations where uncertainty and management s strategic reactions to it are im portant the classical technique is apt to lead to wrong decisions the technology needed to deal with such problems more accurately is becoming available the purpose of this paper is to present a stylized example of how it can be used our example is a general solution to the classical duration problem of the optimal control of a long term renewable resource investment such as forestry resources i e when to chop down a tree 1 if the prices and the natural growth rate of the inventory of forest timber are assumed to be deterministic the optimal control is very simple to derive but when both the price and inventory of timber are stochastic the problem becomes both stochastic and asymmetric the asym

a density projection approach for non trivial information dynamics adaptive management of stochastic natural resources abstract we demonstrate a density projection approximation method for solving resource management problems with imperfect state information the method expands the set of partially observed markov decision process pomdp problems that can be solved with standard dynamic programming tools by addressing dimensionality problems in the decision maker s belief state density projection is suitable for uncertainty over both physical states e g resource stock and process structure e g biophysical parameters we apply the method to an adaptive management problem under structural uncertainty in which a fishery manager s harvest policy affects both the stock of fish and the belief state about the process governing reproduction we solve for the optimal endogenous learning policy the active adaptive management approach and compare it to passive learning and non learning strategies we demonstrate how learning improves efficiency but typically follows a period of costly short run investment

the european sovereign debt crisis the origin and propagation of the european sovereign debt crisis can be attributed to the flawed original design of the euro in particular there was an incomplete understanding of the fragility of a monetary union under crisis conditions especially in the absence of banking union and other european level buffer mechanisms moreover the inherent messiness involved in proposing and implementing incremental multicountry crisis management responses on the fly has been an important destabilizing factor throughout the crisis after diagnosing the situation we consider reforms that might improve the resilience of the euro area to future fiscal shocks

internal or external devaluation what does the ec consumer survey tell us about macroeconomic adjustment in the euro area this paper explores the dynamics of national inflation expectations within the euro area during the recent crisis using the european commission s consumer survey we find that the strong anchoring of area wide inflation expectations which is typically found in the literature does not extend to individual member states we also measure the effect of the crisis on national inflation expectations using sovereign bond spreads and find that increases in sovereign risk have a significant negative effect on inflation expectations this suggests that consumers expect their country to adjust through a process of internal devaluation in contrast we find no evidence that tensions in the sovereign bond markets increase national inflation expectations as one would be expect under an exit or breakup scenario

auctions with heterogeneous entry costs it is well known that if bidders have independent private values and homogeneous entry costs a rst or second price auction with a reserve price equal to the seller s value maximizes social surplus and seller revenue and leaves bidders with no surplus further in mixed strategy entry equilibria social surplus and seller revenue decrease with the number of bidders we show that when entry costs are heterogeneous and private information the revenue maximizing reserve price is above the seller s value a positive inspection fee and a reserve price equal to the seller s value generates even more revenue and in either case bidders capture informational rents further seller revenue and social surplus may either increase or decrease with the number of bidders nevertheless seller revenue is asymptotically the same whether entry costs are homogeneous or heterogeneous our results are framed in terms of screening values rather than reserve prices and apply to any standard auction

harvest decisions and asset valuation for biological resources exhibiting size dependent stochastic growth optimal harvest rules and preharvest valuation procedures are derived for biological assets with stochastic size dependent growth in a stochastic price environment these issues are analyzed as continuous time optimal stopping problems both the single rotation and ongoing rotations problems are addressed the sensitivity of harvest and valuation rules is assessed the results are compared with those derived from a myopic look ahead procedure and with the corresponding findings for age dependent growth copyright 1990 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

resale in second price auctions with costly participation abstract we study sealed bid second price auctions with costly participation and resale each bidder chooses to participate in the auction if her valuation is higher than her optimally chosen participation cutoff if resale is not allowed and the bidder valuations are drawn from a strictly convex distribution function the symmetric equilibrium where all bidders use the same cutoff is less efficient than a class of two cutoff asymmetric equilibria existence of these equilibria without resale is sufficient for existence of similarly constructed two cutoff equilibria with resale moreover the equilibria with resale are more asymmetric and under a sufficient condition more efficient than the corresponding equilibria without resale

optimal forest rotation when stumpage prices follow a diffusion process a key assumption in the faustmann rule for financial maturity is that stumpage prices are constant over time timber price series however exhibit wide fluctuations over time which this paper models as a lognormal diffusion process comparing the diffusion results modeled here to the fixed price faustmann results show 1 the prescribed rotation length is generally longer 2 computed stand values are higher using the diffusion model with the greatest divergence occurring when a stand is about the midpoint of a rotation 3 as the stumpage price volatility increases the gain in computed npv increases though in a nonlinear fashion

coordination and externalities abstract we analyze the gains of coordinating decisions in a regulatory framework in which agents are sovereign and tax inducements are socially costly we consider a general multi agent situation with externalities among agents incomplete information and type dependent reservation utilities when the regulator optimally leaves informational rents to the most efficient agents centralized coordination reduces global activity coordination induces more activity when the principal optimally leaves rents to the most inefficient agents last if we impose budget balance our mechanism can also be interpreted as the optimal auction of a public good with congestion externalities journal of economic literatureclassification numbers d62 d82 l51

structural estimation of the stochastic dynamic decision problems of resource users an application to the timber harvest decision abstract this paper examines a method for structural estimation of the stochastic dynamic decision problems of resource users the method involves nesting a stochastic dynamic programming algorithm within a maximum likelihood routine an application to the timber harvest decision indicates that owners of slash pine plantations in southeast georgia use a low discount rate and treat timber price as a random walk moreover the harvest decision is apparently dominated by profit shocks overlooked in the usual models of the harvest decision

convergence and anchoring of yield curves in the euro area we study the convergence of european bond markets and the anchoring of inflation expectations in the euro area using high frequency bond yield data for france germany italy and spain as well as smaller euro area countries and a control group comprising the uk denmark and sweden we find that economic and monetary union emu has led to substantial convergence in euro area sovereign bond markets in terms of interest rate levels unconditional daily fluctuations and conditional responses to major macroeconomic announcements our findings also suggest a substantial increase in the anchoring of long term inflation expectations since emu particularly for italy and spain which have seen their long term interest rates become much lower much less volatile and much better anchored in response to news finally we present evidence that the elimination of exchange rate risk and the adoption of a common monetary policy were the primary drivers of bond market convergence in the euro area as opposed to fiscal policy restraint and the loose exchange rate peg of the 1990s jel no e52 e58

inflation expectations revisited this paper describes the construction and main features of a new monthly time series for the mean and standard deviation of consumer inflation expectations in the united kingdom in the years 1961 85 based on a number of consumer surveys this involves generalizing to four and five category tendency survey data the method used by j a carlson and m parkin 1975 to quantify the results of a three category tendency survey of inflation expectations the new series exhibit very different time series properties from the original carlson parkin data copyright 1988 by the london school of economics and political science

the stochastic rotation problem a generalization of faustmann s formula to stochastic forest growth abstract in the present paper we study the optimal cutting strategy 1 2 for an ongoing forest by using stochastic impulse control we show how faustmann s formula can be generalized to stochastic growing forests the paper extends and clarifies previous studies by miller and voltaire 1983 clarke and reed 1989 and reed and clarke 1990

measure twice cut once optimal inventory and harvest under volume uncertainty and stochastic price dynamics abstract natural resources are often subject to state uncertainty resource abundance is not known with certainty but can be measured measurements are typically imperfect and costly to obtain the decision of whether to invest in resource measurement may be influenced by other state variables for example a resource commodity price we introduce a mixed observability model of optimal forest management featuring a partially observable forest resource and perfectly observable stochastic price the decision maker optimizes the expected net present value of forest returns by choosing when to measure current forest volume conduct an inventory harvest and replant or delay action parameter values are obtained from numerous forestry data sources optimal investment in inventory reduces the cost of uncertainty about timber volume and increases the predictability of returns moreover price stochasticity interacts with inventory decisions to produce asymmetric effects of high and low prices on inventory timing we also produce the first graphical faustmann rule analogues for jointly optimal inventory and harvest

divergent inflation rates in emu inflation divergence inflation rates have diverged much more widely than expected among the member states of the emu we show that much of this is attributable to the differential impact on different member states of the weakness of the euro on international currency markets in the early months of the union the balassa samuelson productivity growth effect has not yet played an important role even in respect of the outlier ireland although it will likely be more significant over a longer run especially as the accession countries join patrick honohan and philip lane