Analysis of the Evolution of the Spanish Labour Market Through Unsupervised Learning

Jose Maria Luna-Romera,Carlos Usabiaga Ibanez,Maria Martinez-Ballesteros,Jose C Riquelme,Fernando Nunez-Hernandez

doi:10.1109/access.2019.2935386

Jose Maria Luna-Romera, Carlos Usabiaga Ibanez + Show 3 more

Open Access

https://doi.org/10.1109/access.2019.2935386

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Abstract

Unemployment in Spain is one of the biggest concerns of its inhabitants. Its unemployment rate is the second highest in the European Union, and in the second quarter of 2018 there is a 15.2% unemployment rate, some 3.4 million unemployed. Construction is one of the activity sectors that have suffered the most from the economic crisis. In addition, the economic crisis affected in different ways to the labour market in terms of occupation level or location. The aim of this paper is to discover how the labour market is organised taking into account the jobs that workers get during two periods: 2011-2013, which corresponds to the economic crisis period, and 2014-2016, which was a period of economic recovery. The data used are official records of the Spanish administration corresponding to 1.9 and 2.4 million job placements, respectively. The labour market was analysed by applying unsupervised machine learning techniques to obtain a clear and structured information on the employment generation process and the underlying labour mobility. We have applied two clustering methods with two different technologies, and the results indicate that there were some movements in the Spanish labour market which have changed the physiognomy of some of the jobs. The analysis reveals the changes in the labour market: the crisis forces greater geographical mobility and favours the subsequent emergence of new job sources. Nevertheless, there still exist some clusters that remain stable despite the crisis. We may conclude that we have achieved a characterisation of some important groups of workers in Spain. The methodology used, being supported by Big Data techniques, would serve to analyse any alternative job market.

Highlights

The unemployment rate in Spain is the second highest (15%) among the countries of the European Union after Greece (19%)
In 2008, just at the beginning of the recent economic crisis, the construction sector was around 15% of Spanish GDP -and in addition we would have to take into account the important linked activities, and tourism was around 11%
Subsection IV-C carries out a comparison between the results of the k-means clustering and those coming from the average linkage clustering

Summary

Introduction

The unemployment rate in Spain is the second highest (15%) among the countries of the European Union after Greece (19%). The Spanish economy has been rooted on a traditional production model based on sectors such as. In 2008, just at the beginning of the recent economic crisis, the construction sector was around 15% of Spanish GDP -and in addition we would have to take into account the important linked activities-, and tourism was around 11% (in general, the Spanish economy is characterised by an important tertiary bias). Thereby, the collapse of Spain’s construction sector -jointly with several related activitiesafter the bursting of the real estate-financial bubble has beaten records in increasing unemployment at a speed never seen before -the unemployment rate rose from less than 10% to more than 25% in just a few years. Several million jobs were destroyed during the recent economic crisis, going from

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Conclusion