This paper explores the link between trade and growth showing how the relationship between openness and per capita income is contingent to the size and the level of export specialization of countries. Measuring openness both in terms of trade volumes and trade policies, and specialization as a...

For high dimensional data sets the sample covariance matrix is usually unbiased but noisy if the sample is not large enough. Shrinking the sample covariance towards a constrained, low dimensional estimator can be used to mitigate the sample variability. By doing so, we introduce bias, but reduce...

Bu çalışmada Türkiye’deki hayat-dışı sigorta şirketlerinin 1998 – 2003 yılları arasında göreli etkinlikleri incelenmiş ve bunun için veri zarflama analizinden yararlanılmıştır. Sigorta şirketlerinin veri zarflama analizi ile elde edilen etkinlik değerlerinin deprem ve...

Today, some worldwide negative speculative developments variably increase the energy prices. For developing countries whose economic growth substantially depends on energy import, especially on oil-import, an increase in energy prices will negatively affect the cost of import, hence will lead to...

Bu makale, 1990:01–2006:04 dönemleri arasında beklenen nominal US Dolar kur değişmelerinin belirleyicilerini, Güvencesiz Faiz Oranı Paritesi çerçevesinde incelemektedir. Parametrik olmayan ve açıklayıcı değişkenlerin bağımlı değişken üzerinde çapraz etkileşimlerini de...

The double bootstrap provides a useful tool for bootstrapping approximately pivotal quantities by using an "inner" bootstrap loop to estimate the variance. When the estimators are computationally intensive, the double bootstrap may become infeasible. We propose the use of a new variance...

The aim of this letter is to discuss and illustrate what we call (lambda, sigma-2)analysis, which is a method to distinguish between the stability of a stochastic dynamic system and the volatility of a variable generated by this system. It is also emphasized that this method is able to generate...

By using a novel approach in this paper,(lambda,sigma²)-analysis, we have found that electricity prices most of the time have increased in stability and decreased in volatility when the Nordic power market has expanded and the degree of competition has increased. That electricity prices at Nord...

This paper evaluates a measure targeted at unemployed individuals aged 20-24. The main purpose of the measure is to prevent long-term unemployment by guaranteeing an assignment to some labor market program within 100 days of unemployment. Municipalities voluntarily agree to offer the guarantee....

In many cases assignment to a treatment may affect concomitant variables. I show how a concomitant variable can be used to corroborate evidence from an observational study. In the observational study two types of training programs are compared. One program is part of regular Swedish labor market...