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The stochastic Lagrange wave model is a realistic alternative to the Gaussian linear wave model, which has been successfully used in ocean engineering for more than half a century. This paper presents the slope distributions and other characteristic distributions at level crossings for asymmetric Lagrange time waves, i.e. what can be observed at a fixed measuring station, thereby extending result

This study analyzes the performance distribution of TikTok contentpreneurs, along with its generative mechanism. It is a conceptual replication of Gala et al's (2024) “Star entrepreneurs on digital platforms: Heavy-tailed performance distributions and their generative mechanisms.” It focuses on contentpreneurship as a form of entrepreneurship that takes place among content creators on social m

Basel II requires Value at Risk (VaR) as a standardized risk measure for calculating market risk. However, the validity of the risk measure has been questioned since it neglects the losses beyond the VaR level. Expected Shortfall (ES) is a response to this limitation, as it is defined as the average of the losses ignored by VaR. This study applies VaR and ES to three commodities; gold, oil and cor

Denna uppsats skrivs på uppdrag av läkemedelsföretaget QPharma. I uppsatsen undersöks tillämpningen av statistisk processtyrning (SPC) för en av QPharmas läkemedelsprodukter. I uppsatsen genomförs en utförlig litteraturstudie med fokus på teorin bakom SPC. Med hjälp av denna teoretiska bakgrund applicerar vi SPC på data insamlad av företaget. Normalsannolikhetsdiagram används för att kontrollera oThis essay was written at the behest of pharmaceutical company QPharma. The essay investigates the application of statistical process control (SPC) for one of QPharmas pharmaceutical products. The essay includes a thorough literature review focusing on the theory behind SPC. With the help of the theoretical background SPC is then applied to data collected by QPharma. Normal probability plots are u

We consider a class of external potentials on the complex plane C for which the coincidence set to the obstacle problem contains a Jordan curve in the exterior of the droplet. We refer to this curve as a spectral outpost. We study the corresponding Coulomb gas at β=2[jls-end-space/].Generalizing recent work in the radially symmetric case, we prove that the number of particles which fall near the s

This thesis treats regression analysis when either the dependent or the independent variable is censored. We deal with quantile regression when the dependent variable is censored. Using the independence between the true values and the censoring limits the quantile function for the true values can be rewritten as another quantile function of the observed, censored values, where the quantile value i

In this master thesis we investigate the predictive performance of several well-known Value at Risk (VaR) estimation methods, given a specific company setting. The thesis is conducted at a Swedish financial institution that wants to be able to measure foreign exchange (FX) risk induced by cross-currency transactions carried out by the company. The goal of the thesis is to provide empirical evidenc

In this paper results are presented of ground-based fog microphysical measurements obtained during the CHEMDROP experiment in the Po Valley (Northern Italy) in November 1994. Altogether about 85 hours of drop microphysical data are analyzed. At the beginning of the experiment a comparison of some of the different microphysical instruments, operated during the experiment, was performed. It has reve

This thesis investigates methods that estimate the Expected Shortfall correctly by passing the Acerbi-Szekely (2014) backtest in both stressed and calm periods. This backtest is added to in this thesis to test against both under- and overestimation of ES. This research is relevant due to the recent shift in the Basel’s Fundamental Review of the Trading Book from using Value-at-Risk as the leading

The sensorimotor synchronization paradigm is used when studying the coordination of rhythmic motor responses with a pacing stimulus and is an important paradigm in the study of human timing and time perception. Two measures of performance frequently calculated using sensorimotor synchronization data are the average offset and variability of the stimulus-to-response asynchronies-the offsets between

We introduce a new model to address three methodological biases in research on new venture growth and survival. The model offers entrepreneurship scholars numerous benefits. The biases are identified using a systematic review of 96 papers using longitudinal data published over a period of 20 years. They are: (1) distributional properties of new ventures; (2) selection bias; and (3) causal asymmetr