Constrained Indirect Estimation

We develop generalized indirect estimation procedures that handle equality and inequality constraints on the auxiliary model parameters by extracting information from the relevant multipliers, and compare their asymptotic efficiency to maximum likelihood. We also show that, regardless of the validity of the restrictions, the asymptotic efficiency of such estimators can never decrease by explicitly considering the multipliers associated with additional equality constraints. Furthermore, we discuss the variety of effects on efficiency that can result from imposing constraints on a previously unrestricted model. As an example, we consider a stochastic volatility process estimated through a garch model with Gaussian or  t  distributed errors.     

Constitutional choice and European immigration policy

The EU’s immigration policy is evaluated from the standpoint of constitutional economics. The main conclusion is that European immigration policy is trapped in a system of constitutional regulations that is too rigid as it is exclusively oriented towards the protection and securitisation of European borders. As such, it is not capable of allowing the development of a problem-solving capacity based on successive trials, and this produces negative outcomes for the whole of the EU.

Age effects in Okun’s law with different indicators of unemployment

We reassess the results from the literature on the relationship between the youth unemployment rate and GDP growth (Okun’s law), based on the concern that the unemployment rate is not an ideal indicator for teenagers and young adults. Using the unemployment ratio instead, we find that youth unemployment (15–24 years old) is not significantly more responsive to economic growth than prime-age (25–64) unemployment. However, compared to prime-age unemployment, teenagers’ unemployment (15–19) is relatively unresponsive, whereas young adult’s (20–24) unemployment is more strongly correlated with economic growth. These results are quite different than those obtained with the unemployment rate as the dependent variable.     

Discretion vs. timeless perspective under model-consistent stabilization objectives

Recent literature has reported situations in which discretion dominates timeless perspective in the presence of elements that reduce the slope of the New Keynesian Phillips curve. Considering a model-consistent welfare metric inhibits this mechanism in the standard New Keynesian framework.     

Housing Market Fluctuations and the Implicit Price of Water Quality: Empirical Evidence from a South Florida Housing Market

In this study we utilize a hedonic property price analysis to examine changes in the implicit price of water quality given housing market fluctuations over time. We analyze Martin County, Florida waterfront home sales from 2001 to 2010 accounting for the associated significant real estate fluctuations in this area through flexible econometric controls in space and time. We apply a segmented regression methodology to identify housing market price instability over time, interact water quality with these identified market segmentations, and embed these interactions within a spatial fixed effect model to further account for any spatial heterogeneity in the waterfront market. Results indicate that water quality improvement is associated with higher property values. We find no evidence that the economic downturn crowded out concern for the water quality in this area. We further impute an implicit prices of $2614, evaluated at the sample mean, for 1 % point increase in the water quality grade.     

The Application of External Knowledge: Organizational Conditions for Exploration and Exploitation

A firm's ability to acquire and exploit external knowledge is often critical to achieving and sustaining a competitive advantage. In this study, we adopt a multi-dimensional view of absorptive capacity and focus specifically on the application of external knowledge that has been obtained via university-firm collaborations. We examine various organizational conditions that we propose influence a firm's ability to apply external knowledge for explorative and exploitative innovations. We collected data by a survey of firms in industries that frequently work with university research centres (URCs) and from publicly available sources. Results show that predictors of exploration and exploitation of the application of external knowledge differ. Surprisingly, technological relatedness, a common measure of absorptive capacity, is negatively associated with the application of external knowledge to explorative innovations, indicating that knowledge from more distant sources is applied more to exploration. Results also indicate that the effects of two external learning capabilities (prior experience with URCs and technological capability) on knowledge application are moderated in such a way by the tacitness of the knowledge transferred that experience is a stronger predictor when the knowledge is more explicit and technological capability is a stronger predictor when the knowledge is more tacit. We discuss the implications of these findings for research on the application of external knowledge.