The Impact of Exchange Rates on Inflation in Nigeria (1981 - 2015)

2019 ◽  
Vol 4 (3) ◽  
pp. 171-195
Author(s):  
Charles Odinakachi Njoku ◽  
Nwaimo , Chilaka Emmanuel
Keyword(s):  
Exchange Rates ◽  
The Impact

The impact of mechanical ventilation operation strategies on indoor CO2 concentration and air exchange rates in residential buildings

2020 ◽  
pp. 1420326X2096076
Author(s):  
Pedro F. Pereira ◽  
Nuno M. M. Ramos
Keyword(s):  
Mechanical Ventilation ◽  
Air Quality ◽  
Exchange Rates ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Residential Buildings ◽  
Ventilation Strategy ◽  
The Impact ◽  
Mechanical Extraction ◽  
Air Exchange

In Portugal, residential buildings commonly have their ventilation strategy changed after commissioning. This occurs due to the building managers' willingness to reduce shared costs with the electricity needed for fan operation. However, this option is not technically supported, and the effects of such a strategy on indoor air quality-related to human pollutants are yet to be quantified. CO2 was monitored in 15 bedrooms and air exchange rates were calculated for each room. The air exchange rate values ranged from 0.18 to 0.53 h−1 when mechanical extraction ventilation was off, and from 0.45 to 0.90 h−1 when mechanical extraction ventilation was on, which represents an average increase of 119%. With the current intermittent ventilation strategy, all rooms remain above 1500 ppm for a given percentage of time, and 12 rooms presenting CO2 concentrations above 2000 ppm. Simulations of theoretical CO2 concentrations, for a non-interrupted mechanical ventilation strategy show that no rooms would accumulate CO2 concentrations above 2000 ppm, and only 25% would present CO2 concentrations above 1500 ppm. Pearson correlations between the monitored CO2 and human and spatial factors identified two relevant parameters. Those parameters correspond to ratios between CO2 generation and floor area ([Formula: see text]), and airflow with CO2 generation ([Formula: see text]). The proposed ratios could be used as ways to optimise ventilation costs and indoor air quality.

scholarly journals The Impact of Russia’s Oil-Dominated Energy Economic Changes on the Exchange Rate of Russian Ruble – Chinese Renminbi

2017 ◽  
Vol 13 (22) ◽  
pp. 173
Author(s):  
Maoguo Wu ◽  
Yue Yu
Keyword(s):  
Economic Development ◽  
Exchange Rate ◽  
Exchange Rates ◽  
Explanatory Power ◽  
Close Relation ◽  
Policy Implications ◽  
The Exchange Rate ◽  
Exchange Rate Changes ◽  
Pillar Industry ◽  
The Impact

Russia’s economic development has a close relation with China, due to geographical and historical reasons. This paper investigates whether the ruble – renminbi exchange rate changes accordingly when the pillar industry of Russia is drastically changing, and how the exchange rate changes and how it affects Russia’s economic development. In this paper, data of 7 variables spanning 122 months are selected based on related literature and availability of data. Regression analysis and empirical tests are carried out consequently. The results show that the energy price index represented by oil prices is negatively correlated with the exchange rate, and the explanatory power is as high as 41.1%. Following basic arbitrage methods and strategies, this paper verifies the feasibility of using arbitrage by comparing actual exchange rates with forecasted exchange rates. According to empirical results, problems witnessed in the process of ruble internationalization provides policy implications for China. China’s economy is utilized as an example to discuss the shortcomings of Russia’s economy. Related solutions are proposed.

scholarly journals Kū Hou Kuapā: Cultural Restoration Improves Water Budget and Water Quality Dynamics in Heʻeia Fishpond

2018 ◽  
Author(s):  
Paula Mohlenkamp ◽  
Charles Kaiaka Beebe ◽  
Margaret A. McManus ◽  
Angela Hiʻilei Kawelo ◽  
Keliʻiahonui Kotubetey ◽  
...  
Keyword(s):  
Water Quality ◽  
Exchange Rates ◽  
Positive Impact ◽  
Discharge Rate ◽  
Quality Parameters ◽  
Stream Discharge ◽  
Bacterial Indicator ◽  
Average Abundance ◽  
Tidally Driven ◽  
The Impact

In Hawaiʻi, the transition from customary subsistence flooded taro agroecosystems, which regulate stream discharge rate trapping sediment and nutrients, to a plantation-style economy (c. the 1840s) led to nearshore sediment deposition - smothering coral reefs and destroying adjacent coastal fisheries and customary fishpond mariculture. To mitigate sediment transport, Rhizophora mangle was introduced in estuaries across Hawai’i (c. 1902) further altering fishpond ecosystems. Here, we examine the impact of cultural restoration between 2012-2018 at Heʻeia Fishpond, a 600-800-year-old walled fishpond. Fishpond water quality was assessed by calculating water exchange rates, residence times, salinity distribution, and abundance of microbial indicators prior to and after restoration. We hypothesized that R. mangle removal and concomitant reconstruction of sluice gates would increase mixing and decrease bacterial indicator abundance in the fishpond. We find that Heʻeia Fishpond’s physical environment is primarily tidally driven; wind forcing and river flux are secondary drivers. Post-restoration, two gates in the northeastern region account for >80% of relative flux in the fishpond. Increase in exchange rates during spring and neap tide and shorter minimum water residence time corresponded with the reconstruction of a partially obstructed 56 m gap together with the installation of an additional sluice gate in the fishpond wall. Lower mean salinities post-restoration suggests increased freshwater influx due to R. mangle removal. Spatial distribution of microbial bio-indicator species inversely correlated with salinity. Average abundance of Enterococcus and Bacteroidales did not significantly change after restoration efforts, however, average abundance of a biomarker specific to birds nesting in the mangroves decreased significantly after restoration. This study demonstrates the positive impact of biocultural restoration regimes on water flushing and water quality parameters, encouraging the prospect of revitalizing this and other culturally and economically significant sites for sustainable aquaculture in the future.

scholarly journals Different soil moisture control of net methane oxidation and production in organic upland and wet forest soils of the Pacific coastal rainforest in Canada

2017 ◽  
Vol 47 (5) ◽  
pp. 628-635 ◽  
Author(s):  
Jesper Riis Christiansen ◽  
David Levy-Booth ◽  
Cindy E. Prescott ◽  
Sue J. Grayston
Keyword(s):  
Soil Moisture ◽  
Exchange Rates ◽  
Forest Types ◽  
Soil Hydrology ◽  
Oxidation Rates ◽  
The Pacific ◽  
Upland Soils ◽  
Water Saturated ◽  
The Impact ◽  
Future Management

In a changing climate, understanding how soil hydrology impacts greenhouse gas dynamics will be important for the future management of the soils in the forests on the Canadian Pacific west coast. In a laboratory study, the impact of soil hydrology on potential net methane (CH4) exchange rates and the abundance of methanotrophs (CH4oxidation) and methanogens (CH4production) in upland and water-saturated wet soils were investigated. CH4oxidation and production rates were highest in the wet soils, which corresponded to higher numbers of methanotrophs and methanogens, indicating a link between the microbial abundance and CH4exchange rates. Also, CH4production was induced in the upland soils, indicating the presence of methanogens. The optimum soil moisture content for CH4oxidation was highest in upland soils and the wet soils sustained higher CH4oxidation rates over a broader range of soil moisture. These results underline the importance of the soil hydrological controls of CH4oxidation in contrasting soils and forest types, which deserves further attention in field-based studies.

Model kursu walutowego PLN/EUR. Aplikacja modelu Tobit-CVAR

2020 ◽  
Author(s):  
Aleksander Welfe
Keyword(s):  
Exchange Rate ◽  
Exchange Rates ◽  
Theoretical Frameworks ◽  
Statistical Tools ◽  
Macroeconomic Factors ◽  
Market Factors ◽  
Actual Exchange ◽  
The Impact

Although there are numerous theoretical frameworks and statistical tools, while modelling exchange rates researchers usually focus on one of the factors that shape the actual exchange rate. In this chapter, we present a model that allows us to consider non-stationary variables. Apart from this, we are also able to examine separately the impact of fundamental macroeconomic factors and market factors on exchange rates. For exchange rate PLN/EUR, our results support economic hypotheses.

An Empirical Analysis of FII Movement and Currency Value in India

2015 ◽  
pp. 207-217
Author(s):  
Saurabh Sen ◽  
Ruchi L. Sen
Keyword(s):  
Exchange Rate ◽  
Exchange Rates ◽  
Critical Role ◽  
Institutional Investment ◽  
Currency Futures ◽  
Overall Performance ◽  
Foreign Institutional Investors ◽  
Us Dollar ◽  
The Impact ◽  
The Relationship

India opened its stock market to foreign investors in September 1992 and has received portfolio investment from foreigners in the form of foreign institutional investment in equities and other markets including derivatives. It has emerged as one of the most influential groups to play a critical role in the overall performance of the Indian economy. The liberalization of FII flows into the Indian capital market since 1993 has had a significant impact on the economy. With increased volatility in exchange rate and to mitigate the risk arising out of excess volatility, currency futures were introduced in India in 2008, which is considered a second important structural change. This chapter examines the impact of the Foreign Institutional Investors (FIIs) on the exchange rate and analyzes the relationship between FII and Indian Rupee-US Dollar exchange rates.

4. The Domestic Sources of Foreign Economic Policies

2020 ◽  
pp. 76-108
Author(s):  
Michael J. Hiscox
Keyword(s):  
Exchange Rates ◽  
Political Institutions ◽  
Domestic Politics ◽  
Policy Outcomes ◽  
The Political ◽  
Economic Policies ◽  
Political Analysis ◽  
Competing Demands ◽  
Domestic Sources ◽  
The Impact

This chapter examines the domestic sources of foreign economic policies. Different people in every society typically have different views about what their government should do when it comes to setting the policies that regulate international trade, immigration, investment, and exchange rates. These competing demands must be reconciled in some way by the political institutions that govern policy making. To really understand the domestic origins of foreign economic policies, we need to perform two critical tasks: identify or map the policy preferences of different groups in the domestic economy; and specify how political institutions determine the way these preferences are aggregated or converted into actual government decisions. The first task requires some economic analysis, while the second requires some political analysis. These two analytical steps put together like this, combining both economic and political analysis in tandem, are generally referred to as the political economy approach to the study of policy outcomes. The chapter then considers the impact of domestic politics on bargaining over economic issues between governments at the international level.

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