A new homogenous earthquake catalogue covering Bulgaria and the surrounding Balkan area has been created with intention of performing a consistent seismic hazard assessment across the region. In keeping with modern requirements of cataloguing seismicity, this catalogue has been made homogenous as far as possible with regards to magnitude, which has been provided on any of four different reporte...

Height and labor market outcomes appear to be related one another. The taller people are, the more likely they are have better jobs earn money. This is especially case for men. However, whether height causally an open question, which instrumental variable (IV) analysis may help answer. To our knowledge, no study has yet used IV test these relationships in a historical context. present addressed...

This research examines the causal impact of institutional quality on economic development from a novel perspective. At country level, we exploit variation in natural malaria prevalence 1900, just before vector-control methods were developed, to instrument for using two-stage least squares instrumental variables framework. Our is population-weighted average endemicity estimates year 1900 develop...

Estimating long-term trends and short-term amplitudes requires reliable temperature (Temp) observations in the pre-industrial period when few situ existed Arctic. Tree-ring materials are most available used to reconstruct past Arctic Temp variations. However, previous studies incorporated that insensitive local variabilities. The derived reconstruction qualities low (indicated by calibration R2...

[1] Arctic Oscillation (AO) changes are inferred from a treering reconstruction of a warm-season temperature index. The reconstruction covers AD 1650–1975 and is based largely on chronologies from circumpolar-Arctic and circum-North Atlantic areas. It accounts for 48% of the variance in the instrumental AO record from 1900 to 1975, verifies using independent data, and exhibits its largest varia...