GeoDist makes available the exhaustive set of gravity variables used in Mayer and Zignago (2005). GeoDist provides several geographical variables, in particular bilateral distances measured using citylevel data to assess the geographic distribution of population inside each nation. We have calculated different measures of bilateral distances available for most countries across the world (225 countries in the current version of the database). For most of them, different calculations of “intra-national distances” are also available. The GeoDist webpage provides two distinct files: a country-specific one (geo_cepii) and a dyadic one (dist_cepii) including a set of different distance and common dummy variables used in gravity equations to identify particular links between countries such as colonial past, common languages, contiguity. We try to improve upon the existing similar datasets in terms of geographical coverage, quality of measurement and number of variables provided.

/pdf/notes-on-cepii-s-distances-measures-the-geodist-database-2rlgsvy8ea.pdf

Notes on CEPII’s Distances Measures: The GeoDist Database

This chapter is concerned with methodological issues related to estimation, testing and computation in the context of structural changes in the linear models. A central theme of the review is the interplay between structural change and unit root and on methods to distinguish between the two. The topics covered are: methods related to estimation and inference about break dates for single equations with or without restrictions, with extensions to multi-equations systems where allowance is also made for changes in the variability of the shocks; tests for structural changes including tests for a single or multiple changes and tests valid with unit root or trending regressors, and tests for changes in the trend function of a series that can be integrated or trendstationary; testing for a unit root versus trend-stationarity in the presence of structural changes in the trend function; testing for cointegration in the presence of structural changes; and issues related to long memory and level shifts. Our focus is on the conceptual issues about the frameworks adopted and the assumptions imposed as they relate to potential applicability. We also highlight the potential problems that can occur with methods that are commonly used and recent work that has been done to overcome them.

/pdf/dealing-with-structural-breaks-58hiovnjl0.pdf

Dealing with Structural Breaks

We build a theoretical model of multi-product firms that highlights how competition across market destinations affects both a firm's exported product range and product mix. We show how tougher competition in an export market induces a firm to skew its export sales towards its best performing products. We find very strong confirmation of this competitive effect for French exporters across export market destinations. Theoretically, this within firm change in product mix driven by the trading environment has important repercussions on firm productivity. A calibrated fit to our theoretical model reveals that these productivity effects are potentially quite large.

Market Size, Competition, and the Product Mix of Exporters

This paper presents a model in which price setting firms decide what to pay attention to, subject to a constraint on information flow. When idiosyncratic conditions are more variable or more important than aggregate conditions, firms pay more attention to idiosyncratic conditions than to aggregate conditions. When we calibrate the model to match the large average absolute size of price changes observed in micro data, prices react fast and by large amounts to idiosyncratic shocks, but only slowly and by small amounts to nominal shocks. Nominal shocks have strong and persistent real effects. We use the model to investigate how the optimal allocation of attention and the dynamics of prices depend on the firms’ environment. JEL :E 3, E5, D8.

/pdf/optimal-sticky-prices-under-rational-inattention-1xniflppmn.pdf

Optimal Sticky Prices under Rational Inattention

We propose a new approach to test the full-information rational expectations hypothesis which can identify whether rejections of the null arise from information rigidities. This approach quantifies the economic significance of departures from the null and the underlying degree of information rigidity. Applying this approach to U.S. and international data of professional forecasters and other agents yields pervasive evidence consistent with the presence of information rigidities. These results therefore provide a set of stylized facts which can be used to calibrate imperfect information models. Finally, we document evidence of state-dependence in the expectations formation process.

https://papers.ssrn.com/sol3/Delivery.cfm/wp12296.pdf?abstractid=2226221&mirid=1

Information Rigidity and the Expectations Formation Process: A Simple Framework and New Facts

https://www.economicdynamics.org/meetpapers/2010/paper_1144.pdf

Inattentive professional forecasters

This paper analyses the effects of the European Central Bank's expanded asset purchase programme (APP) on yields and on the macroeconomy, and sheds some light on its transmission channels. It shows, first, that the January 2015 announcement of the programme has significantly and persistently reduced sovereign yields on long-term bonds and raised the share prices of banks that held more sovereign bonds in their portfolios. This evidence is consistent with versions of the portfolio rebalancing channel acting through the removal of duration risk and the relaxation of leverage constraints for financial intermediaries. It then presents a stylised macroeconomic model that incorporates the aforementioned transmission channels. The model suggests that the macroeconomic impact of the programme can be expected to be sizable.

https://papers.ssrn.com/sol3/Delivery.cfm/SSRN_ID2839812_code485639.pdf?abstractid=2839812&mirid=5

The ECB's Asset Purchase Programme: An Early Assessment

We exploit the Eurosystem’s longer-term refinancing operations (LTROs) of 2011-2012 to analyze the effects that a large provision of central bank liquidity to banks has on the credit supply to firms. We control for credit demand by examining firms that borrow from several banks, in addition to controlling for banks’ risk. We find that LTROs enhanced loan supply in France. Nevertheless, the transmission took place mostly with the first operation of December 2011, in which constrained banks bid more, and larger borrowers benefited more. The opportunity to substitute long-term central bank borrowing for short-term borrowing was instrumental in this transmission.

/pdf/can-the-provision-of-long-term-liquidity-help-to-avoid-a-114tfjqbhr.pdf

Can the Provision of Long-Term Liquidity Help to Avoid a Credit Crunch? Evidence from the Eurosystem's LTROs

We analyze the effects of forward guidance when agents have heterogeneous interpretations of whether forward guidance contains a commitment on future policy actions. Using survey expectations, we document that forward guidance lowered disagreement about future short-term interest rates to historically low levels while it did not affect much disagreement about future inflation and future consumption. We introduce heterogenous beliefs on future policy and fundamentals in an otherwise standard New-Keynesian model. We show that, because the commitment type of the central bank is unobserved, agreement on the future path of interest rates can coexist with disagreement on the length of the trap. Such heterogeneity of beliefs can strongly mitigate the effectiveness of forward guidance. It also alters the optimal policy at the zero lower bound compared to a situation where beliefs are homogenous.

Forward Guidance and Heterogeneous Beliefs

https://www.bostonfed.org/-/media/Documents/Workingpapers/PDF/2019/wp1917.pdf

Philippe Andrade

Papers

Inattentive professional forecasters

The ECB's Asset Purchase Programme: An Early Assessment

Can the Provision of Long-Term Liquidity Help to Avoid a Credit Crunch? Evidence from the Eurosystem's LTROs

Forward Guidance and Heterogeneous Beliefs

Delphic and Odyssean Monetary Policy Shocks: Evidence from the Euro Area