one of the import indices of food security evaluation is food import capacity index. ratio of total exports to food imports is often thought to be a measure of the capacity of a country to finance its food imports using revenues from exports of goods and services. this study investigates food import capacity effects on rural households food security by calculated ahfci (aggregate household food...

In this paper an effort is made in order to investigate the nexus of dynamic interrelations between the general macroeconomic environment of Greek economy with a special reference to the real wages determination. For the causality analysis among real wages, consumer price index, labour productivity, unemployment rate and gross domestic product a multivariate autoregressive VAR model was used, c...

The theoretical concepts of quantum computation in the idealized and undisturbed case are well understood. However, in practice, all quantum computation devices do suffer from decoherence effects as well as from operational imprecisions. This work assesses the power of error-prone quantum computation devices using largescale numerical simulations on parallel supercomputers. We present the Jueli...

This paper presents cross-country evidence on a non-linear Okun curve. The analysis is based on a simple error–correction model of unemployment. The model is estimated using a threshold model estimator. Evidence from 20 OECD countries for the period 1960–1997 provides support for the existence of non-linearities in terms of the output growth effects. Output growth has a strong effect on unemplo...

This paper examines the effect of FDI on Congolese exports. study highlights analysis existing relationship between and Indeed, this has been carried out theoretically empirically by several authors who did not find unanimous results. Thus, some have found a substitution (negative effect) others, complementarity (positive effect). In our study, empirical was using vector error correction model ...

Quantum error correction is a crucial step to realize large-scale universal quantum computing, and the condition for realizing that probability of each operation must below some threshold. This requires qubits’ quality gates precision can reach certain level experimentally. We firstly discuss mechanism errors: corresponds unitary operator errors, qubits attributed decoherence. Then, according t...

Based on the fluctuation characteristics of residents’ disposable income and CPI (Consumer Price Index) in different periods, this article introduces a nonlinear threshold cointegration theory, establishes TVECM (Threshold Vector Error Correction Model) CPI. We propose an algorithm to obtain maximum likelihood estimation under condition vector value which are unknown then SupLM test for presenc...

This paper investigates whether there is evidence of structural change in the Brazilian term structure of interest rates. Multivariate cointegration techniques are used to verify this evidence. An econometric model is estimated which is a Vector Autoregressive Model with Error Correction Mechanism (VECM) with abrupt structural change formulated by Hansen [13]. Two datasets were analysed. The fi...