Results 11 to 20 of about 210,711 (319)

Deflationary Bubbles [PDF]

open access: yesMacroeconomic Dynamics, 2004
In an attempt to clean up an unruly literature, we specify the necessary and sufficient conditions for household optimality in a model where money is the only financial asset and provide the relevant proofs. We use our results to analyze when deflationary bubbles can and cannot exist.
Willem H. Buiter, Anne C. Sibert
openaire   +8 more sources

Bubble, Bubble, Where's the Housing Bubble? [PDF]

open access: yesBrookings Papers on Economic Activity, 2006
HOUSING PRICES HAVE risen by about 50 percent in the past five years, and more than 100 percent in some hot markets. Many knowledgeable observers believe that the United States is in the midst of a speculative bubble in residential real estate prices that rivals the dot-com bubble of the 1990s and that will have a similarly unhappy conclusion.
Margaret Hwang Smith, Gary Smith
openaire   +2 more sources

THE VISCOUS TO BRITTLE TRANSITION IN CRYSTAL- AND BUBBLE-BEARING MAGMAS

open access: yesFrontiers in Earth Science, 2015
The transition from viscous to brittle behaviour in magmas plays a decisive role in determining the style of volcanic eruptions. While this transition has been determined for one- or two-phase systems, it remains poorly constrained for natural magmas ...
Mattia ePistone   +5 more
doaj   +1 more source

Behavioral Framework of Asset Price Bubbles: Theoretical and Empirical Analyses

open access: yesSystems, 2022
Sentiment and extrapolation are ubiquitous in the financial market, and they are not only the embodiment of human nature, but also the primary drivers of asset price bubbles.
Cong Chen, Changsheng Hu, Hongxing Yao
doaj   +1 more source

Bubble Drag Reduction Requires Large Bubbles [PDF]

open access: yesPhysical Review Letters, 2016
In the maritime industry, the injection of air bubbles into the turbulent boundary layer under the ship hull is seen as one of the most promising techniques to reduce the overall fuel consumption. However, the exact mechanism behind bubble drag reduction is unknown.
Verschoof, R.   +3 more
openaire   +5 more sources

Outgassing from Open and Closed Magma Foams

open access: yesFrontiers in Earth Science, 2017
During magma ascent, bubbles nucleate, grow, coalesce, and form a variably permeable porous network. The reorganization, failing and sealing of bubble walls may contribute to the opening and closing of the volcanic system.
Felix W. von Aulock   +4 more
doaj   +1 more source

Vesiculation of Rhyolitic Melts Under Oscillatory Pressure

open access: yesFrontiers in Earth Science, 2022
Magma ascending in the Earth’s crust can undergo oscillations in pressure, from ultra-low frequency changes associated with tectonics, to relatively higher frequency oscillations associated with seismicity.
Gilles Seropian   +12 more
doaj   +1 more source

Quantitatively Monitoring Bubble-Flow at a Seep Site Offshore Oregon: Field Trials and Methodological Advances for Parallel Optical and Hydroacoustical Measurements

open access: yesFrontiers in Earth Science, 2022
Two lander-based devices, the Bubble-Box and GasQuant-II, were used to investigate the spatial and temporal variability and total gas flow rates of a seep area offshore Oregon, United States. The Bubble-Box is a stereo camera–equipped lander that records
Mario E. Veloso-Alarcón   +7 more
doaj   +1 more source

Raman Spectroscopy Imaging of Exceptional Electronic Properties in Epitaxial Graphene Grown on SiC

open access: yesNanomaterials, 2020
Graphene distinctive electronic and optical properties have sparked intense interest throughout the scientific community bringing innovation and progress to many sectors of academia and industry.
A. Ben Gouider Trabelsi   +5 more
doaj   +1 more source

Bubbles in Crude Oil and Commodity Energy Index: New Evidence

open access: yesEnergies, 2020
This paper considers a long dataset of both Brent and West Texas Intermediate (WTI) crude oil prices and the Commodity (fuel) energy index (CEI) to identify possible bubbles. Using the Supremum Augmented Dickey–Fuller (SADF) test, we compare results from
Christos Floros, Georgios Galyfianakis
doaj   +1 more source

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