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Different models for predicting volatility in financial returns have been proposed during the years. This paper focuses on two different ways of volatility modeling, generalized autoregressive conditional heteroskedasticity (GARCH) models and exponential smoothing models. In a previous study 2004, James W. Taylor introduced an adaptive version of the traditionally exponential smoothing method with
This thesis purpose is to examine what impact employer branding and organisational culture has on individual’s identity construction from a socially constructed view. We have used a qualitative research method based on an anti-positivistic epistemology and a socially constructed ontological perspective. We have conducted a case study at Quarter Consulting (a pseudonym for one of "The big 4&qu
This thesis was written in collaboration between Faiveley Nordic in Landskrona and the Division of Production and Materials Engineering at Lund University. It was set out to find improvements or cost reductions of the overhaul process at Faiveley. The overhaul process at Faiveley is a process were used and worn train brakes are taken apart and overhauled for further use. To achieve this goal, amon
There is an ongoing debate within Swedish public administration regarding whether municipalities can handle contemporary issues that require some amount of coordination as well as whether they are straying from democratic principles. It is argued that the origin of this debate lies in the sectorisation of the Swedish welfare system, where the traditional model has been deemed unfit. There is conce
Narratives focusing on People of Color often suffer from neocolonial treatment with narrow focus on race at the expense of character development, working with stereotypical monoliths rather than complex individuals. These types of narratives tend to use Whiteness as a “neutral” reference point. In this thesis, I demonstrate how novelist Junot Díaz crafts The Brief Wondrous Life of Oscar Wao around
Syfte: Uppsatsen syfte är att utöka förståelsen kring huruvida fakulteter vid ett universitet arbetar med sin märkesidentitet med hjälp av internal branding för att differentierar sig i en värld där konkurrensen hårdnar och ackrediteringar riskerar att likforma fakulteterna. Metod: En kvalitativ studie har genomförts med ett hermeneutistiskt fenomenologiskt förhållningssätt. Den analys och slutsa
Meal-kit boxes are considered a solution to reduce greenhouse gas emissions by reducing the food waste in the supply chain and households. Nevertheless, the consumers are concerned about the amount of packaging that comes with such a box, which is connected to higher carbon emissions than a grocery store meal. Thus, HelloFresh, a global market-leader in meal-kit boxes is driven to find more sustai
Travel today is not as self-evident as it has been the last few decades. This paper takes on a mission to investigate how external factors such as natural disasters, geopolitical tensions, and above all; epidemics, call for an external crisis communication for travel and tourism companies.
Climate change and human impact play a huge role in the sustainability and development of ecosystems and the services they offer to societies over temporal and spatial scales. Fossil pollen-based estimates provide unique information on past land cover change, but to date there are not many methods able to create spatially continuous maps and have a fine scale of land cover changes inferred from po
Nowadays consumers are becoming more aware of the environmental impacts caused by their consumption habits. As a result their consumption patterns and information needs have changed. Currently, product-related environmental information for ICT consumer products is not easily available. In addition, the general perception of ICT practitioners is that private consumers are not asking for environment
IMPORTANCE During the past decade, spinal surgical procedures have been increasingly performed on an ambulatory basis, a change in clinical practice supported only by observational evidence thus far. There have been no randomized clinical trials (RCTs) comparing ambulatory care with inpatient care after any spinal surgery. OBJECTIVE To assess whether ambulatory care is noninferior to overnight hos
ObjectiveExamine the factor structure, reliability, and validity of the Pediatric Testing Attitudes Scale-Diabetes (P-TAS-D), a measure of parental attitudes about predictive risk screening for type 1 diabetes in children. MethodsSurveys were completed by 3720 Swedish parents of children participating in the adolescent follow-up of a birth cohort study of type 1 diabetes onset. Parents averaged 43
A search for the pair production of heavy leptons (N-0, L-+/-) predicted by the type-III seesaw theory formulated to explain the origin of small neutrino masses is presented. The decay channels N-0 -> W(+/-)l(+/-) (l = e, mu, tau) and L-+/- -> W(+/-)v (v = v(e), v(mu), v(tau)) are considered. The analysis is performed using the final state that contains two leptons (electrons or muons), two jets f
The fashion industry has a considerable environmental impact, especially due to the increased generation of waste textiles as a result of fast fashion business models. Although fiber-to-fiber recycling processes are being developed, such a process is in reality a downcycling process, in which the mechanical properties of the textile fibers are impoverished with each cycle. Thus, new alternatives a
The co-existence of trees and grasses is a defining feature of savannah ecosystems and landscapes. During recent decades, the combined effect of climate change and increased demographic pressure has led to complex vegetation changes in these ecosystems. A number of recent Earth observation (EO)-based studies reported positive changes in biological productivity in the Sahelian region in relation to
