When Do Autocracies Start to Liberalize Foreign Trade? Evidence from Four Cases in the Arab World

This paper argues that trade and capital account reforms within autocracies underlie the primacy of foreign currency procurement. A longitudinal comparison of four countries (Morocco, Tunisia, Egypt and Jordan) in the Middle East and North Africa region shows a historical sequencing of reforms. In the 1960s and 1970s, the foreign exchange scarcity was managed primarily by rising restrictions, accumulation of debt and a number of unilateral country-specific strategies, including broader economic openings (infitah) and isolated capital account liberalizations. However, IMF-friendly reforms (orthodox trade liberalization) only became a political option in the context of the extreme fiscal scarcity of the 1980s and 1990s, after the failure of these earlier policies and the drying up of alternative unconditional finance. Additionally, the time differences regarding when orthodox reforms are implemented within autocracies mainly relate to global and regional cycles of different external windfall gains. These findings complement recent debates about the rush to free trade in at least two regards. First, they point to distinct causal mechanisms depending on the type of political regime (for example, autocracy versus democracy), explaining the beginning of trade and capital account liberalizations among developing countries. Second, they reveal the conditional historical influence of neoliberal ideas among structurally similar autocracies.Autocracy, trade and capital account liberalization, Morocco, Tunisia, Egypt,Jordan

On the Myth of a General National Culture. Making Visible Specific Cultural Characteristics of Learners in Different\ud Educational Contexts

The concept of a few values that can characteristically explain all units of culture (Schneider, 1968, pp.1-2) within any national context generally sounds promising. In order to take design-oriented decisions on culture-specific research questions, such characteristic values, particularly if already determined for many countries, would allow a massive reduction of effort. However, we were unsure if the contexts of academic and professional education allowed the adoption of such values without loosing the characteristic information, which are crucial for designing context sensitive e-Learning contents. In both educational scenarios we investigated the subcultures ‘faculty’, ‘university’, ‘enterprise’, and ‘nation’. In this paper, we exemplarily discuss our study’s results regarding one selected topic\ud from our questionnaire, i.e. the ‘role of the lecturer’. Actually, we found major differences between the investigated scenarios. Thus, we came to the conclusion\ud that in our context, adapting, e. g. Hofstede’s national values, would not lead to a learning design that takes the context-specific cultural differences into consideration

Why Do Some Oil Exporters Experience Civil War But Others Do Not? – A Qualitative Comparative Analysis of Net Oil-Exporting Countries

According to quantitative studies, oil is the only resource that is robustly linked to civil war onset. However, recent debates on the nexus of oil and civil war have neglected that there are a number of peaceful oil-rentier states, and few efforts have been spent to explain why some oilexporting countries have experienced civil war and others have not. Methodologically, the debate has been dominated by research using either quantitative methods or case studies, with little genuine medium-N comparison. This paper aims to fill this gap by studying the conditions of civil war onset among net oil exporters using (crisp-set) Qualitative Comparative Analysis (csQCA). Considering a sample of 44 net oil exporters between 1970 and 2008, we test conditions such as oil abundance (per capita) and dependence, the interaction of ethnic exclusion and oil reserve locations (overlap) as well as the type of political regime (polity). Our results point to a combination of necessary and sufficient conditions that has been largely ignored until now: low abundance is a necessary condition of civil war onset. Two pathways lead to civil war: first, a combination of low abundance and high dependence and, second, a combination of low abundance and the geographical overlap of ethnic exclusion with oil reserve areas within autocracies.civil war, oil exports, resource curse, rentier state, QCA

Sectoral Transformations in Neo-Patrimonial Rentier States: Tourism Development and State Policy in Egypt

This article challenges claims that liberalising state regulated markets in developing countries may induce lasting economic development. The analysis of the rise of tourism in Egypt during the last three decades suggests that the effects of liberalisation and structural adjustment are constrained by the neo-patrimonial character of the Egyptian political system. Since the decline of oil rent revenues during the 1980s tourism development was the optimal strategy to compensate for the resulting fiscal losses. Increasing tourism revenues have helped in coping with macroeconomic imbalances and in avoiding more costly adjustment of traditional economic sectors. Additionally, they provided the private elite with opportunities to generate large profits. Therefore, sectoral transformations due to economic liberalisation in neo-patrimonial Rentier states should be described as a process, which has led to the diversification of external rent revenues, rather than to a general downsizing of the Rentier character of the economy.Egypt, rentier state, economic liberalisation, economic development, tourism

Low-rank Linear Fluid-structure Interaction Discretizations

Fluid-structure interaction models involve parameters that describe the solid and the fluid behavior. In simulations, there often is a need to vary these parameters to examine the behavior of a fluid-structure interaction model for different solids and different fluids. For instance, a shipping company wants to know how the material, a ship's hull is made of, interacts with fluids at different Reynolds and Strouhal numbers before the building process takes place. Also, the behavior of such models for solids with different properties is considered before the prototype phase. A parameter-dependent linear fluid-structure interaction discretization provides approximations for a bundle of different parameters at one step. Such a discretization with respect to different material parameters leads to a big block-diagonal system matrix that is equivalent to a matrix equation as discussed in [KressnerTobler 2011]. The unknown is then a matrix which can be approximated using a low-rank approach that represents the iterate by a tensor. This paper discusses a low-rank GMRES variant and a truncated variant of the Chebyshev iteration. Bounds for the error resulting from the truncation operations are derived. Numerical experiments show that such truncated methods applied to parameter-dependent discretizations provide approximations with relative residual norms smaller than $10^{-8}$ within a twentieth of the time used by individual standard approaches.Comment: 30 pages, 7 figure

Periodic Mean-Field Solutions and the Spectra of Discrete Bosonic Fields: Trace Formula for Bose-Hubbard Models

We consider the many-body spectra of interacting bosonic quantum fields on a lattice in the semiclassical limit of large particle number $N$. We show that the many-body density of states can be expressed as a coherent sum over oscillating long-wavelength contributions given by periodic, non-perturbative solutions of the, typically non-linear, wave equation of the classical (mean-field) limit. To this end we construct the semiclassical approximation for both the smooth and oscillatory part of the many-body density of states in terms of a trace formula starting from the exact path integral form of the propagator between many-body quadrature states. We therefore avoid the use of a complexified classical limit characteristic of the coherent state representation. While quantum effects like vacuum fluctuations and gauge invariance are exactly accounted for, our semiclassical approach captures quantum interference and therefore is valid well beyond the Ehrenfest time where naive quantum-classical correspondence breaks down. Remarkably, due to a special feature of harmonic systems with incommesurable frequencies, our formulas are generically valid also in the free-field case of non-interacting bosons.Comment: submitted to Phys. Rev.

A note on the magnetic spatial forcing of a ferrofluid layer

We report on the response of a thin layer of ferrofluid to a spatially modulated magnetic field. This field is generated by means of a constant current in a special arrangement of aluminum wires. The full surface profile of the liquid layer is recorded by means of the absorption of X-rays. The outcome is analyzed particularly with regard to the magnetic self focusing effect under a deformable fluid layer