The signal-in-space (SIS) anomaly of BeiDou navigation satellite system (BDS) is an important factor affecting its high accuracy SIS quality assessment. Detecting and eliminating not only method to build fault model BDS, but also helps guarantee the integrity BDS positioning. Based on problem that traditional empirical threshold cannot accurately identify start end times anomalies in detection,...

The objective of this study is to identify the impact trade liberalization on economic growth in Japan. Annual data are utilized from 1985 2016 via Autoregressive Distributed Lag Model (ARDL) Cointegration test and Vector Error Correction (VECM) based Granger causality. findings unit root tests revealed that all variables mixed results whereby they integrated at I(0) I(1) could proceed ARDL tes...

Import policies for food products, including beef, need to support national security while protecting the domestic industry. This study aims develop a model beef import demand of Indonesia. The employed annual secondary data from various sources 1990 2019. Autoregressive distributed lag (ARDL) and error correction models (ECM) were adapted predicting long-run short-run demand, by considering in...

The purpose of taxation is to raise revenue pay for public goods. question how tax mix affects the size underground economy one most important issues its application policy. However, empirical evidence on this subject limited and also somewhat ambiguous. Empirically, study specifically aims evaluate effect corporate rate net taxes product shadow growth in Nigeria during period 1996–2020. It emp...