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Nominal rigidity is a central question in the debates to address better models to predict the outcome of certain policies. However, there is little empirical evidence that gives a deeper understanding of the mechanism that transmits this friction into the economy. This paper aims to understand the relationship between price rigidity and wage rigidity in the Swedish economy. I found a positive rela
Danske Bank has for several years modeled customer purchase behavior on category level (e.g. savings or investments). This thesis is a first attempt at predicting (first time) customer purchase behavior on product level. Five products within two categories were chosen and modelling was done with python using gradient boosters (mainly XGBoost, but also Light GBM). Results indicated that predicting
Of the food produced for human consumption, one-third is lost or wasted. Food waste has an impact on the environment in several ways and it is thus required to reduce food waste in all parts of the value chain. The objective of this thesis is to identify drivers and barriers for implementing food waste reducing strategies in school kitchens. The study is conducted within the project Göteborgsmod
Dividing wall columns are single shell distillation columns which are thermally fully coupled. DWC has the ability to create three product streams from one feed stream. A simulation of DWCs is hard due to the complexity of the system. Unfortunately, there is no good software package that can be used for simulations. Instead a detailed flowsheet with the right components and good arrangement over t
In this thesis, we study the Jarrow and Yildirim framework for inflation modeling and provide a new specification based on spread modeling which allows to calibrate the model to Zero-Coupons and Year-on-Year options jointly with convexity adjustments. We use this model to provide closedform formulas for options volatilities, convexity adjustments and Year-on-Year swaptions prices. Calibration resu
Oleaginous microorganisms provide an opportunity to produce oils without the use of arable land for cultivation of oil-containing plants. Oleaginous microorganisms are also capable of storing products of pharmaceutical interest alongside storing polymers, which could open new opportunities in the bioplastic industry. Oily yeasts have several advantages in comparison to alternatives; their doubling
Det finns många olika utformningar av lyfthjälpmedel och hjälpmedel för att gå, så som patient lyftar och rullatorer, men det finns inte många lösningar som kan göra båda. Detta examensarbete är baserat på en person med fysisk funktionsnedsättning som har specifika behov för vilka det inte fanns någon anpassad lösning. Målet var att utveckla en produkt som kan lyfta användaren från sittandes till There exist many different designs of lifting aids and walking aids, but barely any solutions that can do both. This thesis is based on a person with mobility impairment with specific needs for which there were yet no adapted solution. The goal was to design a product that can lift the user from sitting to standing position and then be a walking aid by supporting the user by the armpits, all this
Wireless communication nowadays is playing a vital role in real-life data transmission. This communication can be machine-to-machine or human to machine communication. In each of these categories, reliability and low latency data transmission are critical factors of success transmission in case the number of devices in a certain area increases. In this thesis, I mainly investigate on smart manufac
As more modern technical devices with cameras are accessible to people, more photos are taken and the amount of data that is available has vastly increased. Researchers have learnt to utilise this and use images for various purposes with Deep Learning based Computer Vision. For instance, one can teach a computer to perform an automated inventory, which could be a very time consuming task. Libraria
Purpose of the study: To further generate an understanding of previous research on NSD challenges in small firms and NSD methods used by firms when developing new experiential services. Theory: Research on challenges faced by small firms with performing NSD and methods experiential service firms use to perform NSD. Methodology: Qualitative multiple case study, the study is deductive in nature. Dat
Purpose and research question: The purpose of the study is to examine the effect ESG disclosure exerts on a firm’s propensity towards public or private debt. Methodology: For the panel data, pooled OLS and fixed effects models are applied. A quadratic term is introduced to test for non-linearity between bond debt ratios and ESG disclosure scores. An instrumental variable approach and a sharp regre
Tröger’s Base (TB) is a bicyclic compound containing a methanodiazocine group between two aromatic rings. The methylene bridge forces the molecule to have a bent formation; thus, the aromatic rings are close to 90 degrees relative to each other, resulting in a rigid concave aromatic cavity. These unique properties make TB a great candidate as a molecular cleft compound and a good structure as a mo
Threat and Error Management (TEM) har framförts som en modell för att förstå, förklara och utbilda i hur olika flygsäkerhetsrisker uppkommer och kan hanteras för att uppnå en ökad flygsäkerhet. Den bygger till stor del på den tidigare utvecklade modellen för övervakning av operationell flygverksamhet, Line Operations Safety Audit (LOSA). Information har insamlats med hjälp av litteraturstudier, in
Modern embedded development flows often depend on FPGA board usage for pre-ASIC system verification. The purpose of this project is to instead explore the usage of Electronic System Level (ESL) hardware-software co-simulation through the usage of ARM SoC Designer tool to create a virtual prototype of a cellular IoT modem and thereafter compare the benefits of including such a methodology into the
In this thesis methods for finding state space representation parameters for low inductance DC-motors are found and evaluated. Theory previously tested in simulations is verified experimentally and improved upon for both linear behaviour when the motor is controlled with a DC-source as well as nonlinear behaviour when controlled with pulse width modulation (PWM). For the linear behaviour a linear
HVAC systems are widely used to provide a good indoor air quality in buildings. Buildings stand for a substantial part of the total energy consumption in developed countries, and with an increased focus on cost reductions and energy savings, it is necessary to use intelligent and energy-efficient controllers. Accurate models describing the dynamics of the building system is a good basis for intel
Syftet med undersökningen är att rapportera hur rytmikpedagogik och rörelsebaserad musikundervisning kan bidra till ömsesidig integration bland elever i en multikulturell svensk skola. Jag har genomfört en studie där jag kombinerar en internetbaserad enkät med en fokusgruppsintervju. Femtio musikpedagoger över hela Sverige svarade på enkäten, de flesta vilka arbetar med El Sistema. El Sistema erbjThe purpose of this study is to investigate how eurhythmics and body-based music education could contribute to mutual integration of students in a multicultural Swedish school. I have conducted a study, combining an Internet-based survey with a focus group interview. Fifty music teachers throughout Sweden answered the survey, most of who work at El Sistema. El Sistema offers optional music educati
Detta examensarbete undersöker styvhetsegenskaperna för tre armeringsmaterial: ferrocement, glasfiber- och kolfibertextilarmering, tillämpade för skalkonstruktioner. En av de strategier som användes för undersökningen var ett mekaniskt försök med kompositarmerade betongbalkar. Det mekaniska försöket skulle sedan verifieras med numeriska och analytiska modeller. Jämförelser mellan de mekaniska och The purpose of this master’s thesis is to investigate the stiffness properties of three reinforcement materials for concrete shell structures: ferrocement, glass-fibre textile and carbon-fibre textile. Three types of strategies were used to analyse the properties of the materials, an analytical model, experimental beam prototypes and a numerical analysis. Immediate comparison of the mechanical exp
