scholarly journals Operator quantum error correction

2006 ◽  
Vol 6 (4&5) ◽  
pp. 382-399
Author(s):  
D.W. Kribs ◽  
R. Laflamme ◽  
D. Poulin ◽  
M. Lesosky

This paper is an expanded and more detailed version of the work \cite{KLP04} in which the Operator Quantum Error Correction formalism was introduced. This is a new scheme for the error correction of quantum operations that incorporates the known techniques --- i.e. the standard error correction model, the method of decoherence-free subspaces, and the noiseless subsystem method --- as special cases, and relies on a generalized mathematical framework for noiseless subsystems that applies to arbitrary quantum operations. We also discuss a number of examples and introduce the notion of "unitarily noiseless subsystems''.

Author(s):  
Suryo Refli Ranto

Penelitian ini bertujuan untuk menguji secara empiris pengaruh jangka pendek dan jangka panjang dari Inflasi, Jumlah Uang Berjalan, Kurs, Tingkat Bunga Bank Indonesia, Harga Minyak Dunia (WTI) dan Net Ekspor terhadap Indeks Harga Saham Gabungan (IHSG) dengan metode Error Correction Model (ECM) yang diolah dengan eviews 6.0. Selama periode pengamatan yaitu tahun 2000-2012 terjadi hubungan antara variabel makro dengan pergerakan IHSG di Bursa Efek Indonesia (BEI). Hasil uji ECM memperlihatkan Inflasi, kurs dan harga minyak dunia berpengaruh signifakan terhadap IHSG pada jangka pendek sedangkan pada jangka panjang variabel yang signifikan mempengaruhi IHSG adalah IHK, kurs, net ekspor dan harga minyak dunia.Kata kunci : IHSG, IHK, JUB, Kurs, tingkat Bunga Bank Indonesia (rSBI), Harga Minyak Dunia (WTI), Net Ekspor dan Error Correction Model (ECM) 


Author(s):  
Onome Christopher Edo ◽  
Anthony Okafor ◽  
Akhigbodemhe Emmanuel Justice

Objective – The purpose of this study is to investigate the effect of corporate taxes on the flow of Foreign Direct Investment (FDI) in Nigeria between 1983 and 2017. Methodology/Technique – This study adopts an ex-post facto research design. Secondary data was sourced from the World Bank Development Indicator, the Central Bank of Nigeria database, and the Federal Inland Revenue database. The research data was analyzed using the Error Correction Model (ECM). Findings – The coefficient of determination (R2) shows that approximately 77% of systematic changes in FDI are attributed to the combined effect of all of the explanatory variables used in this study. Specifically, the study concludes that Company Income Tax, Value Added Tax, and Custom and Excise Duties have a significant but negative relationship with FDI. In contrast, Tertiary Education Tax has a positive association with FDI. Further, Exchange Rate has a negative but significant relationship with FDI, Inflation had an insignificant but positive association with FDI, and GDP growth Rate and Trade Openness demonstrate a positive and significant association with FDI. Novelty – The findings of this study are distinguishable from previous studies, as it uncovers new evidence that higher Education Tax Rates influences FDI and emerging evidence on the effect of non-tax variables on FDI inflow. Type of Paper: Empirical. JEL Classification: E22, F21, H2, P33. Keywords: Corporate Taxes; Foreign Direct Investment; Error Correction Model; Nigeria; Non-Tax Variables. Reference to this paper should be made as follows: Edo, O.C; Okafor, A; Justice, A.E. 2020. Corporate Taxes and Foreign Direct Investment: An Impact Analysis, Acc. Fin. Review 5 (2): 28 – 43. https://doi.org/10.35609/afr.2020.5.2(1)


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