The local polynomial estimator is particularly affected by the curse of dimensionality. So, the potentialities of such a tool become ineffective for large dimensional applications. Motivated by this, we propose a new estimation procedure based on the local linear estimator and a nonlinearity...

Son yıllarda ham petrol fiyatlarında gerçekleşen yükselişler bu piyasaların daha iyi anlaşılmasını gerekli kılmış, ekonomik birimlerin daha iyi tahminlere ulaşabilmek için çaba sarf etmesine neden olmuştur. Vadeli sözleşmelerin ise bu amaç için en çok başvurulan araç...

In this study, we conducted a research as to whether splits in shares on the ISE-ON Index at the Istanbul Stock Exchange have had an impact on returns generated from shares between 2005 and 2011 or not using event study method. This study is based on parametric tests, as well as on nonparametric...

We study a general class of semiparametric estimators when the innite-dimensional nuisance parameters include a conditional expectation function that has been estimated nonparametri- cally using generated covariates. Such estimators are used frequently to e.g. estimate nonlinear models with...

Decision making can be a complex process requiring the integration of several attributes of choice options. Understanding the neural processes underlying (uncertain) investment decisions is an important topic in neuroeconomics. We analyzed functional magnetic resonance imaging (fMRI) data from...

A tanulmány szerzője egy új, nem paraméteres eljárás (OCRA) alkalmazási lehetőségeit mutatja be. A húsipar tartósnak tűnő hatékonysági és versenyképességi problémái különösen indokolttá teszik, hogy új eljárás segítségével a működési versenyképesség fogalmát...

A munkanélküli-járadékból Magyarországon a legtöbben nem úgy kerülnek ki, hogy állást találnak, hanem úgy, hogy kimerítik a járadékot. A cikk ezzel összefüggő két problémát vizsgál. 1. Milyen hatást gyakorol a járadék megszűnése az érintettek életkörülményeire?...

This paper investigates determinants of agricultural sector efficiency in ten new member states (NMS-10) of the European Union (EU) from Central and Eastern European countries by the non-parametric method Data Envelopment Analysis (DEA) and the panel data analysis. The agricultural sector...

Resumo: São testadas duas formas distintas de assimetria cíclica, a deepness e a steepness, através da aplicação do teste do coeficiente de enviesamento e do teste triples. A assimetria é analisada em vinte e três países, segundo uma perspectiva secular do PIB real per capita (1820/70 a...

The dynamics of drug launch has been an under-researched area. Most of the studies in this field focus on developed countries, quite uniform in terms of disease profile and regulatory framework, and analyse whether stringency in regulation influences launch delay. Developing countries, in...