6,264 research outputs found
Practices and meanings of non-professional stock-trading in Taiwan : a case of relational work
Accepted for workshop on 21/11/2014PreprintNon peer reviewe
Do Giant Oilfield Discoveries Fuel Internal Armed Conflicts?
We use new data to examine the effects of giant oilfield discoveries around the world since 1946. On average, these discoveries increase per capita oil production and oil exports by up to 50 percent. But these giant oilfield discoveries also have a dark side: they increase the incidence of internal armed conflict by about 5-8 percentage points. This increased incidence of conflict due to giant oilfield discoveries is especially high for countries that had already experienced armed conflicts or coups in the decade prior to discovery.Natural resources, resource curse, petroleum, armed conflict, civil war
Suppression of long-wavelength CMB spectrum from the no-boundary initial condition
The lack of correlations at the long-wavelength scales of the cosmic
microwave background spectrum is a long-standing puzzle and it persists in the
latest Planck data. By considering the Hartle-Hawking no-boundary wave function
as the initial condition of the inflationary universe, we propose that the
power suppression can be the consequence of a massive inflaton, whose initial
vacuum is the Euclidean instanton in a compact manifold. We calculate the
primordial power spectrum of the perturbations, and find that as long as the
scalar field is moderately massive, the power spectrum is suppressed at the
long-wavelength scales.Comment: 9 pages, 7 figures; journal versio
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