Search results for "Icing"
showing 10 items of 491 documents
Putting time into space: the temporal coherence of spatial applications in the housing market
2016
International audience; Relationships between past events, future expectations and present decisions, typically examined through a temporal prism within applied economics, have been lately moving to the spatial dimension through spatial econometrics. However, violations of the “arrow of time”, and thus causality, have been identified in spatial econometric techniques applied to spatio-temporal data consisting of observations each at a specific location and distinct moment in time. A comprehensive review classifies for the first time several redresses to this issue in a currently fragmented literature. This paper puts back the temporal dimension into spatial Hedonic Pricing models through a …
Quality pricing-to-market
2014
We examine firm's pricing-to-market decisions in vertically differentiated industries featuring a large number of firms that compete monopolistically in the quality space. Firms sell goods of heterogeneous quality to consumers with non-homothetic preferences that differ in their income and thus their marginal willingness to pay for quality increments. We derive closed-form solutions for the pricing game under costly international trade, thus establishing existence and uniqueness. We then examine how the interaction of good quality and market demand for quality affects firms' pricing-to-market decisions. The relative price of high quality goods compared to that of low quality goods is an inc…
ES konkurences tiesību regulējums un pierādīšanas standarts aizliegtu vienošanās lietās, kurās izmantota cenu veidošanas algoritmu programmatūra
2021
Eiropas Komisija ir paudusi uzskatu, ka Eiropas Savienībā tiesību regulējumam ir jābūt vienādam, “likvidējot jebkādu mākslīgu nošķīrumu starp tradicionālo un digitālo tirgu”. Šis maģistra darbs pētī jautājumu, vai Eiropas konkurences tiesības paredz iespēju pierādīt aizliegtas vienošanās, karteļa esamību tad, ja tiek izmantoti viedie cenu algoritmi un nav pierādījumu par tradicionālu komunikāciju starp tirgus dalībniekiem. Analizējot judikatūru par LESD 101 (1) punktu, īpaši pievēršoties lietām, kurās pierādījumi vākti e-vidē, tiek secināts ar kādiem ierobežojumiem būtu jāsastopas izmeklējošajai iestādei, piemēram, EK, mēģinot pierādīt tāda karteļa esamību, kas darbojas uz algoritmu pamata.…
IPO procesa analīze Nasdaq Baltic akciju tirgū
2021
Maģistra darba tēma ir „ IPO procesa analīze Nasdaq Baltic akciju tirgū”. Maģistra darbā tiek analizēti akciju tirgus teorētiskie aspekti, to nozīme ekonomikā un akciju sākotnējā publiskā piedāvājuma process. Tiek izpētītas IPO tendences gan pasaulē, gan Baltijas valstīs, kā arī tiek analizēta Nasdaq Baltic dalībnieku struktūra, tirgus darbība, attīstības tendences, IPO underpricing aspekts un IPO ietekme uz uzņēmumu finanšu rādītājiem. Maģistra darba mērķis ir, pamatojoties uz Baltijas valstu akciju tirgus darbības izpēti, veikt akciju sākotnējā publiskā piedāvājuma procesa analīzi un tā dalībnieku finanšu analīzi, kā rezultātā izstrādāt priekšlikumus par Nasdaq Baltiс vērtspapīru tirgus a…
The RNA-binding protein ELAV regulates Hox RNA processing, expression and function within the Drosophila nervous system
2014
The regulated head-to-tail expression of Hox genes provides a coordinate system for the activation of specific programmes of cell differentiation according to axial level. Recent work indicates that Hox expression can be regulated via RNA processing but the underlying mechanisms and biological significance of this form of regulation remain poorly understood. Here we explore these issues within the developing Drosophila central nervous system (CNS). We show that the pan-neural RNA-binding protein (RBP) ELAV (Hu antigen) regulates the RNA processing patterns of the Hox gene Ultrabithorax (Ubx) within the embryonic CNS. Using a combination of biochemical, genetic and imaging approaches we demo…
Sharing economy and dynamic pricing: Is the impact of Airbnb on the hotel industry time-dependent?
2021
Abstract Prior literature has reported significant price and revenue reductions in the hotel industry due to the emergence of Airbnb. Other studies have documented that hotels' price reactions to the penetration of Airbnb depend on their service level, e.g., low/medium-end versus high end. Relying on a large sample from the Italian market, we contribute by showing that the effect of Airbnb on hotels' price decisions does not only depend on incumbents’ quality level, but also on the difference between booking and check-in time. That is, the effect of the penetration of Airbnb on hotels' dynamic price decisions varies over time depending on the core segment hotels target.
Trace element fractionation through halite crystallisation: Geochemical mechanisms and environmental implications
2019
Halite is an important mineral for industry, agriculture and food production. It crystallises after water evaporation, while the progressive growth of dissolved metal ions in brines is occurring. Then, halite exploitation may provide the delivery of metal ions in the environment and the mechanism of this trace element accumulation should be studied. In this work we investigate the distribution of lanthanides and Y (hereafter named Rare Earth Elements, REE), Zr and Hf between crystallising halite and brines in the Dead Sea as geochemical tools for recognising the mechanism of metal ion removal from brines and accumulation in halite. Halite forms cubic crystals where octahedral planes sometim…
Extensive molecular analysis of patients bearing CFTR-related disorders.
2012
Cystic fibrosis transmembrane conductance regulator (CFTR)–related disorders (CFTR-RDs) may present with pancreatic sufficiency, normal sweat test results, and better outcome. The detection rate of mutations is lower in CFTR-RD than in classic CF: mutations may be located in genes encoding proteins that interact with CFTR or support channel activity. We tested the whole CFTR coding regions in 99 CFTR-RD patients, looking for gene mutations in solute carrier (SLC) 26A and in epithelial Na channel (ENaC) in 33 patients who had unidentified mutations. CFTR analysis revealed 28 mutations, some of which are rare. Of these mutations, RT-PCR demonstrated that the novel 1525-1delG impairs exon 10 s…
Volatility-Managing International Equity Risk Factors
2018
Recent research (see Moreira and Muir, 2017) suggests that volatility-managed portfolios take less risk when volatility is high produce large alphas, increase Sharpe ratios, and produce large utility gains for mean-variance investors. We extend this literature by investigating the profitability of volatility-managing the Fama and French (2017) local risk factors in international equity markets. Our general findings indicate that volatility-managing adds value for local risk factors in Europe and Asia, whereas in Japan we find no such evidence. Confirming earlier studies, we find that a risk-based story is unlikely to explain our results.
Volatility transmission patterns and terrorist attacks
2009
The objective of this study is to analyze volatility transmission between the US and Eurozone stock markets considering the effects of the September 11, March 11 and July 7 financial crises. In order to do this, we use a multivariate GARCH model and take into account the asymmetric volatility phenomenon, the non-synchronous trading problem and the crises themselves. Moreover, a graphical analysis of the Asymmetric Volatility Impulse-Response Functions (AVIRF) is introduced, which takes into consideration the crisis effect. Results suggest that there is bidirectional and asymmetric volatility transmission and show the different impact that terrorist attacks had on both markets. El objetivo d…