What became of the Information Society and development? Assessing the Information Society’s relevance in the context of an economic crisis

Abstract Although it is widely assumed that the development of an Information Society is an engine for sustainable economic growth, this often remains more of an assumption than a demonstrable outcome. A critical analysis of that link is much needed, and particularly pertinent during times of crisis where it can be even more tested. To…

Seminario 22/17: Germán López Buenache (Universidad de Murcia) Factor models for large and incomplete data sets with unknown group structure

data

Most economic applications rely on a large number of time series, which typically have a remarkable clustering structure and they are available over different spans. To handle these databases, we combined the expectation–maximization (EM) algorithm outlined by Stock and Watson (JBES, 2002) and the estimation algorithm for large factor models with an unknown number of…

A new proposal to model regional input–output structures using location quotients. An application to Korean and Spanish regions

Abstract This paper is based on the use of Flegg’s location quotients (FLQ) and proposes a novel procedure for the estimation of the unknown parameter δ in regions with and without input–output frame availability. Applied to data for the Korean regions for the year 2015, firstly the determination of the optimal δ is addressed by…

Entre los más altos de España. El estado nutricional en las Canarias occidentales: cohortes masculinas de 1860-1915

Abstract Objetivo: analizamos la dinámica del estado nutricional en las Canarias con datos de la altura masculina durante la segunda mitad del siglo xix y su dimensión en el contexto español.Métodos: con datos del reclutamiento militar, hacemos una estimación de la talla promedio masculina en edades de 19-21 años por cohortes de nacimiento para el…

Sibhsip size, height and cohort selection: a methodological approach

Abstract This article deals with the historical relationship between the number of siblings in a family or household and height, a proxy for biological living standards. Ideally, this relationship is better assessed when we have evidence on the exact number of siblings in a family from its constitution onwards. However, this generally requires applying family…

Month of birth and height. A case study in rural Spain

Abstract Introduction.- Season of birth correlates to a wide range of health conditions throughout life measured by anthropometrics. This study explores whether the month of birth and weather during gestation influence male adult height, based on Spain’s rural population before the end of the modernization process. Methods.- The database of heights (N = 16.266) is composed of…

Growing taller unequally? Adult height and socioeconomic status in Spain (Cohorts 1940–1994)

Abstract Socioeconomic inequalities and their evolution in different historical contexts have been widely studied. However, some of their dimensions remain relatively unexplored, such as the role played by socioeconomic status in the trajectory of biological living standards, especially net nutritional status. The main objective of this article is to analyze whether the power of socioeconomic…

Symbolic Analysis Applied to the Specification of Spatial Trends and Spatial Dependence

Abstract This article provides symbolic analysis tools for specifying spatial econometric models. It firstly considers testing spatial dependence in the presence of potential leading deterministic spatial components (similar to time-series tests for unit roots in the presence of temporal drift and/or time-trend) and secondly considers how to econometrically model spatial economic relations that might contain…

The impact of geographical factors on churn prediction: an application to an insurance company in Madrid’s urban area

Abstract Geography has previously been noted as a decisive factor in business literature. This paper provides evidence of the significant role geography plays in customer lapse behaviour in an urban environment. This novel approach is based on the idea that the customers who cancel all policies and leave the company are not randomly distributed; rather,…

Spatial models for online retail churn: Evidence from an online grocery delivery service in Madrid

Abstract This paper presents evidence of the significant role that geography plays in customer churn behaviour in online retail. In an urban environment, mimetic behaviours are found to affect nearby individuals. This novel approach is based on the idea that customer churn is not randomly distributed across the map. This paper analyses more than 2,000…