Capital Destruction, Optimal Defense and Economic Growth

The effects of capital destruction are endogenized in a neoclassical growth model where the economy can optimally allocate part of its labor force to defend capital from being destroyed. The purpose is to explain the optimal allocation of the labor force between productive and deterrence activities along the optimal growth path in response to exogenous terrorist attacks against the material wealth of the economy. The article makes special case to the recent Colombian case and sheds some light on the dramatic increase in the defense activities in Colombia as a result of the increase of terrorist attacks by rebeld groups.Capital accumulation, deterrence, capital destruction and economic growth.

Populist Policies in the Transition to Democracy

This paper develops a political economy model that provides an explanation as for why ruling elites in oligarquic societies may rely on income redistribution to the poor (the masses) in order to prevent them from attempting a revolution. We refer to this kind of redistribution as populist redistribution because, first it does not increase the poor’s productive capacity (human capital), and second it seeks to “buy” political support (peace) to perpetuate the elite’s control of political power. We examine the conditions under which ruling elites choose to deter the poor (by means of military repression and/or populist redistribution), to engage in a dispute with the poor for the control of political power, or, alternatively, to extend democracy. According to the results of the model populist redistribution (or military repression), if any, increases with initial wealth inequality and with the amount of redistribution that the poor can undertake under democracy, and decreases with the relative importance of a human capital externality in production. The model explains why in some cases the use of an apparently ine cient policy of populist redistribution turns out to be optimal for both groups (the ruling elite and the poor class) when the alternative is to use of military repression or default to conflict.Populism, oligarchy, democracy, conflict, inequality.

Cocaine production and trafficking : what do we know ?

The main purpose of this paper is to summarize the information currently available on cocaine production and trafficking. The paper starts by describing the available data on cocaine production and trade, the collection methodologies (if available) used by different sources, the main biases in the data, and the accuracy of different data sources. Next, it states some of the key empirical questions and hypotheses regarding cocaine production and trade and takes a first look at how well the data match these hypotheses. The paper states some of the main puzzles in the cocaine market and studies some of the possible explanations. These puzzles and empirical questions should guide future research on the key determinants of illicit drug production and trafficking. Finally, the paper studies the different policies that producer countries have adopted to fight against cocaine production and the role consumer countries play in the implementation of anti-drug policies.Health Monitoring&Evaluation,Environmental Economics&Policies,Crime and Society,Crops&Crop Management Systems,Economic Theory&Research

Cocaine Production and Trafficking: What do we know?

The main purpose of this chapter is to summarize the information currently available on cocaine production and trafficking. The chapter starts by describing the available data on cocaine production and trade, the collection methodologies, (if available) used by different sources, the main biases in the data, and the accuracy of different data sources. Next, the chapter states some of the key empirical questions and hypotheses regarding cocaine production and trade and takes a first look at how well the data matches these hypotheses. Also, the chapter states some of the main puzzles in the cocaine market and studies some of the possible explanations. These puzzles and empirical questions should guide future research into our understanding of the key determinants of illicit drug production and trafficking. Finally, the chapter studies the different policies that producer countries have adopted to fight against cocaine production and the role consumer countries play in the implementation of anti-drug policies.Cocaine; Narcotraffic; War on Drugs. Classification JEL: K42; C81; H56.

An Open Source, Autonomous, Vision-Based Algorithm for Hazard Detection and Avoidance for Celestial Body Landing

Planetary exploration is one of the main goals that humankind has established as a must for space exploration in order to be prepared for colonizing new places and provide scientific data for a better understanding of the formation of our solar system. In order to provide a safe approach, several safety measures must be undertaken to guarantee not only the success of the mission but also the safety of the crew. One of these safety measures is the Autonomous Hazard, Detection, and Avoidance (HDA) sub-system for celestial body landers that will enable different spacecraft to complete solar system exploration. The main objective of the HDA sub-system is to assemble a map of the local terrain during the descent of the spacecraft so that a safe landing site can be marked down. This thesis will be focused on a passive method using a monocular camera as its primary detection sensor due to its form factor and weight, which enables its implementation alongside the proposed HDA algorithm in the Intuitive Machines lunar lander NOVA-C as part of the Commercial Lunar Payload Services technological demonstration in 2021 for the NASA Artemis program to take humans back to the moon. This algorithm is implemented by including two different sources for making decisions, a two-dimensional (2D) vision-based HDA map and a three-dimensional (3D) HDA map obtained through a Structure from Motion process in combination with a plane fitting sequence. These two maps will provide different metrics in order to provide the lander a better probability of performing a safe touchdown. These metrics are processed to optimize a cost function

Going with the flow: Sedimentary processes along karst conduits within Chalk aquifers, northern France

Sediment-filled caves, conduits and voids are common inmany karst regions. These voids and the sediment they contain are important palaeoclimatic and palaeoenvironmental archives, but often have an adverse impact on engineering projects, mineral extraction and hydrogeology.Most studies into fluvial sedimentation in karst aquifers have focussed on more traditional karst areas. However, the nature and extent of fluvial sedimentation within caves and conduits in the important Upper Cretaceous Chalk Group aquifer (NW and Central Europe), and their impacts are lesswell known. This is principally due to a lack of accessible Chalk caveswith exposed 3D sediment archives for study. Fortunately, the discovery of the World's longest Chalk cave system by underground quarrying at Caumont in the Seine valley near Rouen, northern France, has exposed numerous sediment sections along 2.4 km of passage. Detailed analysis of the stratigraphy, mineralogy, sedimentology, provenance and the chronology of the exposed sediments including the novel use of Gamma-ray spectrometry, reveals complex stratigraphy and lateral facies distribution along a karst conduit. The depositional model comprises five allostratigraphical units since the mid-Chibanian, separated by periods of erosion. The units are derived from hyper-concentrated and sediment-laden flows, and include thalweg, channel, slackwater, backswamp speleothem facies and debris flow deposits that are interbedded. Speleothems precipitated during MIS 7, 6, 5e and 1. During MIS 7–6, detrital sediments filled almost all Chalk conduits, similar to other caves in the European Atlantic Margin, coevally with the Penultima (Saalian) Glacial Cycle and a maximum of the Earth eccentricity. Detrital sediments are derived from the erosion of local Chalk bedrocks as well as metamorphic and igneous rocks of remote areas, such as Morvan massif and Massif Central. The depositional model is consistent with the conception of the Chalk as a karst aquifer. Significant sediment aggradation caused upwards dissolution (paragenesis), conduit occlusion and subsequent genesis of new conduits by flow diversion, potentially altering the functioning of the chalk aquifer and the interpretation of Chalk hydrogeology (e.g., dye-tracing tests).PALECONOR project funded by Région NormandieComité Régional de Spéléologie de NormandieMuséum National d'Histoire Naturelle, Paris)France regional council's Sesame and Labex BcDiv programmesPlan Andaluz de Investigación, Desarrollo e Innovación 2020 (Junta de Andalucía, Spain

A GIS‑supported Multidisciplinary Database for the Management of UNESCO Global Geoparks: the Courel Mountains Geopark (Spain)

Funding for open access charge: Universidad de Granada/CBUA. The work was funded by the Courel Mountains UGGp.The management of a UNESCO Global Geopark (UGGp) requires a vast wealth of miscellaneous scientific knowledge that can be successfully organised using a Geographical Information System (GIS). This paper presents a pragmatic GIS database to assist in the suitable governance of the Courel Mountains UGGp (2017) in Northwest Spain. The database is structured in 66 coverages compiled from public sources and previous works or produced through traditional mapping (combining fieldwork and photointerpretation) and GIS tools. The acquired data was later homogenised and validated by a multidisciplinary team and archived in independent coverages. Forty thematic maps illustrate the broad range of cartographic information included in the GIS database. Among them, 25 basic maps provide an overview of the UGGp and 15 new maps focus on crosscutting and technical issues. All maps illustrate the huge potential of GIS to create new resources combining coverages and adapting the legend according to their purpose and audience. The database facilitates the suitable publishing of consistent outputs (e.g., brochures, books, panels, webpages, web serves), as well as the elaboration of technical data to assist the park management. The database furnishes information on the design of education actions, touristic routes, activities and Geopark facilities. The GIS database is also a supportive tool for scientific research and provides the necessary knowledge to conduct geoconservation actions based on land use, geological hazards and the occurrence of natural and cultural heritages. Altogether, the GIS database constitutes a powerful instrument for policy-making, facilitating the identification and evaluation of alternative strategy plans.Universidad de Granada/CBUACourel Mountains UGG

Acute Kidney Injury Biomarkers: A Prospective Cohort Study In Urological Patients

Several recent studies have assessed the use of biomarkers of Acute Kidney Injury (AKI), but the information among patients with stone disease and those with obstructive uropathy is limited. For this reason, we conducted a prospective cohort study to determine the urinary levels of KIM-1, Total and Monomeric NGAL in patients with hydronephrosis secondary to renal stone disease, congenital ureteropelvic junction obstruction or ureteral stricture, and in a group of healthy controls in our health care center. Urinary biomarker concentrations were evaluated before and after surgical treatment. Patients with hydronephrosis showed significantly higher baseline levels of KIM-1 compared to those patients without hydronephrosis. KIM-1 was the only urinary biomarker significantly affected by the presence of hydronephrosis. Total and Monomeric NGAL correlated with the presence of leukocyturia. Our results show that KIM-1 is a promising biomarker of subclinical AKI associated with hydronephrosis in urological patients

Competitiveness of Colombian Departments observed from an Economic geography Perspective

SummaryIn this paper, we analyze the regional competitiveness concept and its measurement using the old and New Trade Theory and the New Economic Geography. The analysis shows that the competitiveness has no sense when is applied to the goods market, while has sense (however, not in all situations) when is applied to the productive factors market. Contrary to most approaches and measurements of the competitiveness of Colombian departments, we show that is possible to obtain simple measures which, in addition to being consistent with the conceptual framework of economic geography, are the product of the combination of a small number of variablesRegional competitiveness, New Trade Theory, Economic Geography, Colombian departments, Competitiveness Ranking