Bank net interest margins,the yield curve,and the 2007–2009 financial crisis

Using quarterly call report data from 2000 to 2016, we reexamine the relationship between net interest margins (NIM) and the yield curve for more than 5,500 U.S. commercial banks. In the full sample, yield curve and RGDP growth have positive effects on NIM, while inflation and deposit‐to‐loan ratios (D/L) have negative effects. Splitting the sample around the 2007–2009 crisis, we show the impact of yield curve and RGDP growth on NIM increasing during the “recovery” (2009Q3 to 2016Q4), and inflation and D/L changing signs. Positive effects of yield curve on profits vary with bank size and change over time.     

Creation of models for calculation of coefficients of terrain passability

Quality & Quantity - The content of this article is a paper about a complex mathematical model of terrain passability which respects geographical and meteorological conditions in terrain and...     

Inference of the Russian drug community from one of the largest social networks in the Russian Federation

The criminal nature of narcotics complicates the direct assessment of a drug community, while having a good understanding of the type of people drawn or currently using drugs is vital for finding effective intervening strategies. Especially for the Russian Federation this is of immediate concern given the dramatic increase it has seen in drug abuse since the fall of the Soviet Union in the early nineties. Using unique data from the Russian social network ‘LiveJournal’ with over 39 million registered users worldwide, we were able for the first time to identify the on-line drug community by context sensitive text mining of the users’ blogs using a dictionary of known drug-related official and ‘slang’ terminology. By comparing the interests of the users that most actively spread information on narcotics over the network with the interests of the individuals outside the on-line drug community, we found that the ‘average’ drug user in the Russian Federation is generally mostly interested in topics such as Russian rock, non-traditional medicine, UFOs, Buddhism, yoga and the occult. We identify three distinct scale-free sub-networks of users which can be uniquely classified as being either ‘infectious’, ‘susceptible’ or ‘immune’.     

Multi-product capacitated facility location problem with general production and building costs

This research introduces the multi-product capacitated facility location problem with general production and building costs (MP-CFLPGC). The MP-CFLPGC extends previous problems found in the literature by including multiple products and general production and building cost functions that allow the modeling of different behaviors like economies of scale and congestion. The MP-CFLPGC is formulated as a mixed integer linear program (MILP). To evaluate the performance of the proposed formulation we analyze the results of a commercial optimizer on a set of 288 randomly generated test instances that resemble the Colombian cement industry supply chain. After one hour the optimizer achieved an optimality gap of 1.0 % or less in 55 % out of the 288 test instances. On average the optimality gap was 3.57 %. Additionally, we propose a randomized mathematical-programming-based heuristic for the test instances where the MILP formulation presents significantly high optimality gaps.     

Projections of Russia’s agricultural development under the conditions of climate change

This paper analyzes the possible impact of irrigation on the development of agriculture in the Volga River Basin and Black Sea Basin. Scenarios of the development of agriculture in Russia up to 2030 under the conditions of the expansion of irrigation and persistence of the current situation with irrigation have been calculated and analyzed based on the IMPACT-3 econometric partial equilibrium model.     

The evaluation of the long-term economic development of the Irkutsk region in the system of the all-Russian forecasting

The long-term forecasting of the development of the Irkutsk region by economic sectors is considered. The evaluations of the structural changes and the interregional relationships by the variants of the potential trends of development of the economy of Siberia and Russia in a whole are presented. The forecast is made by the production output data, which are the basis of the target growth of the final consumption.     

Decentralized Bribery and Market Participation

I propose a bribery model that examines decentralized bureaucratic decision‐making. There are multiple stable equilibria. High levels of bribery reduce an economy's productivity because corruption suppresses small business, and reduces the total graft, even though the size of an individual bribe might increase. Decentralization prevents movement towards a Pareto‐dominant equilibrium. Anticorruption efforts, even temporary ones, might be useful to improve participation, if they lower the bribe levels demanded and thus encourage small businesses to participate.     

Comparative assessment of state involvement in the economy in OECD studies

The role and features of state involvement in the economy have been analyzed based on the system of special indicators of the countries of the Organization for Economic Cooperation and Development (OECD). The change in the nature of state influence on the economic system in the geopolitical context that manifests at the national and international levels has been shown. The state uses various economic policy instruments, including soft power in the form of sanctions and countermeasures, which make it possible to strengthen its control of the economy. In the past two years, this tactic has manifested in Russia’s relations with Western countries.     

Analysis of the status and trends of applications of advanced manufacturing technologies in Russia

The article has analyzed trends in applying advanced manufacturing technologies in Russia in 2005–2014. The dynamics of technical process structures in the context of applications has been considered. The dynamics of the age structure and the structure of technologies in use in annual terms by the place of acquiring has been assessed. The start-up, availability, and removal balance of technologies has been formed, the effective start-up level, and possible ways to improve the state statistical indicators of innovation development have been determined.