Results 121 to 130 of about 3,488 (262)

Tariff Transmission Across US Customs Districts: Product‐Level Evidence From Successive Trade Shocks

open access: yesThe World Economy, EarlyView.
ABSTRACT This paper asks how US tariffs on Chinese imports reshape trade across the nation's customs districts, and whether a district's earlier reliance on China shapes how deeply its imports fall. We build a monthly panel of HS6‐level US imports from eleven source countries arriving through eight customs districts between January 2017 and December ...
Wenhao Yao, Shimiao Su, Yunan Yao
wiley   +1 more source

Clearing the noise to predict the rhythm of the North Atlantic climate. [PDF]

open access: yesSci Adv
Alkama R   +4 more
europepmc   +1 more source

Understanding Egg Price Volatility and Policy Implications in the U.S. With Machine Learning

open access: yesApplied Economic Perspectives and Policy, Volume 48, Issue 4, Page 1146-1166, September 2026.
ABSTRACT Eggs are an inexpensive and sustainable source of proteins, but volatility in the U.S. egg prices has intensified in recent years, raising concerns over food affordability and market stability. This study examines the drivers of U.S. egg price dynamics over 2004–2025 using a two‐stage framework that combines LASSO‐based variable selection with
Xuemei Zhao   +3 more
wiley   +1 more source

Calendar anomalies in the Ukrainian stock market

open access: yes, 2017
This paper is a comprehensive investigation of calendar anomalies in the Ukrainian stock market. It employs various statistical techniques (average analysis, Student's t-test, ANOVA, the Kruskal-Wallis test, and regression analysis with dummy variables) and a trading simulation approach to test for the presence of the following anomalies: Day of the ...
Plastun, Oleksii Leonidovych   +1 more
openaire   +1 more source

Reducing Exposure Before Birth: An Interrupted Time Series Study of Prenatal Exposure to Fetotoxic Medications Under Risk Management Plans in Canada

open access: yesClinical Pharmacology &Therapeutics, Volume 120, Issue 3, Page 721-730, September 2026.
Canada's 2009 risk management plan (RMP) framework has not been evaluated for prenatal exposure impact. Conversely, widely used drugs such as nonsteroidal anti‐inflammatory drugs (NSAIDs) lack RMPs. We assessed first‐trimester exposure to RMP‐regulated medications following regulatory interventions and to NSAIDs following safety publications.
Nahiyan Saiyara Khan   +4 more
wiley   +1 more source

AI-based quality control was associated with improved fetal ultrasound image quality in low-resource settings: a real-world multicenter study from West China. [PDF]

open access: yesBMC Med
Zhao J   +13 more
europepmc   +1 more source

What happened after the epidemic? Equine influenza surveillance sheds light on sources and seasonal risk in the United Kingdom

open access: yesEquine Veterinary Journal, Volume 58, Issue 5, Page 1269-1282, September 2026.
Abstract Background The epidemiology of equine influenza (EI) in the United Kingdom has not been systematically described since the 2019 epidemic. Objectives To summarise UK EI surveillance (2020–2024), quantify outbreak seasonality and assess movement‐related sources. Study Design Retrospective observational analysis of national surveillance and horse
Fleur Whitlock   +2 more
wiley   +1 more source

Nowcasting World Trade With Machine Learning: A Three‐Step Approach

open access: yesJournal of Forecasting, Volume 45, Issue 6, Page 2954-2968, September 2026.
ABSTRACT We nowcast world trade using machine learning, distinguishing between tree‐based methods (random forest and gradient boosting) and their linear‐regression‐based counterparts (macroeconomic random forest and gradient boosting—linear). While much less used in the literature, the latter are found to outperform not only the tree‐based techniques ...
Menzie Chinn   +2 more
wiley   +1 more source

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