National Bureau of Economic Research

About: National Bureau of Economic Research is a nonprofit organization based out in Cambridge, Massachusetts, United States. It is known for research contribution in the topics: Monetary policy & Population. The organization has 2626 authors who have published 34177 publications receiving 2818124 citations. The organization is also known as: NBER & The National Bureau of Economic Research.

Generalized Modeling Approaches to Risk Adjustment of Skewed Outcomes Data

Abstract: There are two broad classes of models used to address the econometric problems caused by skewness in data commonly encountered in health care applications: (1) transformation to deal with skewness (e.g., OLS on ln(y)); and (2) alternative weighting approaches based on exponential conditional models (ECM) and generalized linear model (GLM) approaches. In this paper, we encompass these two classes of models using the three parameter generalized gamma (GGM) distribution, which includes several of the standard alternatives as special cases OLS with a normal error, OLS for the log normal, the standard gamma and exponential with a log link, and the Weibull. Using simulation methods, we find the tests of identifying distributions to be robust. The GGM also provides a potentially more robust alternative estimator to the standard alternatives. An example using inpatient expenditures is also analyzed.

Consumption-based asset pricing

Abstract: This chapter reviews the behavior of financial asset prices in relation to consumption. The chapter lists some important stylized facts that characterize U.S. data, and relates them to recent developments in equilibrium asset pricing theory. Data from other countries are examined to see which features of the U.S. experience apply more generally. The chapter argues that to make sense of asset market behavior one needs a model in which the market price of risk is high, time-varying, and correlated with the state of the economy. Models that have this feature, including models with habit-formation in utility, heterogeneous investors, and irrational expectations, are discussed. The main focus is on stock returns and short-term real interest rates, but bond returns are also considered.

Real-Time Measurement of Business Conditions

Abstract: We construct a framework for measuring economic activity at high frequency, potentially in real time. We use a variety of stock and flow data observed at mixed frequencies (including very high frequencies), and we use a dynamic factor model that permits exact filtering. We illustrate the framework in a prototype empirical example and a simulation study calibrated to the example.

Innovation and Productivity in SMEs - Empirical Evidence for Italy

Abstract: Innovation in SMEs exhibits some peculiar features that most traditional indicators of innovation activity do not capture Therefore, in this paper, we develop a structural model of innovation which incorporates information on innovation success from firm surveys along with the usual R&D expenditures and productivity measures We then apply the model to data on Italian SMEs from the “Survey on Manufacturing Firms” conducted by Mediocredito-Capitalia covering the period 1995-2003 The model is estimated in steps, following the logic of firms’ decisions and outcomes We find that international competition fosters R&D intensity, especially for high-tech firms Firm size, R&D intensity, along with investment in equipment enhances the likelihood of having both process and product innovation Both these kinds of innovation have a positive impact on firm’s productivity, especially process innovation Among SMEs, larger and older firms seem to be less productive

The Real Effect of Banking Crises

Abstract: Banking crises are usually followed by a decline in credit and growth. Is this because crises tend to take place during economic downturns, or do banking sector problems have independent negative effects on the economy? To answer this question we examine industrial sectors with differing needs for financing. If banking crises have an exogenous detrimental effect on real activity, then sectors more dependent on external finance should perform relatively worse during banking crises. The evidence in this paper supports this view. Additional support comes from the fact that sectors that predominantly have small firms, and thus are typically bank dependent, also perform relatively worse during banking crises. The differential effects across sectors are stronger in developing countries, in countries with less access to foreign finance, and where banking crises were more severe.