Results 251 to 260 of about 22,403 (309)

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

Applied Economic Perspectives and Policy, EarlyView.
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, Simon Meister, Lucie Maruejols, Xiaohua Yu   +3 more
wiley   +1 more source

Hepatic real-world outcomes with obeticholic acid in primary biliary cholangitis (HEROES): A trial emulation study design. [PDF]

Hepatology
Brookhart MA, Mayne TJ, Coombs C, Breskin A, Ness E, Bessonova L, Chu YJ, Li J, Fried MW, Hansen BE, Kowdley KV, Jones D, Mells G, Trivedi PJ, Hiu S, Kareithi DN, Wason J, Smith R, Seeger JD, Hirschfield GM.   +19 more
europepmc   +1 more source

Protocol to track single-cell-derived clones using DNA barcoding combined with single-cell RNA sequencing. [PDF]

STAR Protoc
Shin HJ, Sharma S, Kronheim S, Cheung M, Nguyen LV.   +4 more
europepmc   +1 more source

Artesunate improves cryopreserved yak sperm quality by activating SOD1 antioxidant pathway. [PDF]

Front Vet Sci
Fan Y, Lv W, Li X, Wanma G, Li J, Xiong X, He X, Wang Y, Yin S, Fu W, He H, Lin Y, Lan D, Xiong Y.   +13 more
europepmc   +1 more source

Host plants determine oviposition preference and larval fitness of tomato leafminer, <i>Phthorimaea absoluta</i>. [PDF]

Front Insect Sci
Edosa TT, Kim KH, Jeon SW, Kim J, Park JH, Sun H.   +5 more
europepmc   +1 more source

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Intraday Volatility in the Stock Index and Stock Index Futures Markets

Review of Financial Studies, 1991
We examine the intraday relationship between returns and returns volatility in the stock index and stock index futures markets. Our results indicate a strong intermarket dependence in the volatility of the cash and futures returns. Price innovations that originate in either the stock or futures markets can predict the future volatility in the other ...
CHAN, K., CHAN, KC, KAROLYI, GA
openaire   +3 more sources

The Dynamics of Stock Index and Stock Index Futures Returns

The Journal of Financial and Quantitative Analysis, 1990
In rational, efficiently functioning markets, the returns on stock index and stock index futures contracts should be perfectly, contemporaneously correlated. This study investigates the time series properties of 5-minute, intraday returns of stock index and stock index futures contracts, and finds that SP however, the effect is not completely ...
Hans R. Stoll, Robert E. Whaley
openaire   +1 more source

Do Islamic stock indexes outperform conventional stock indexes? A state space modeling approach

European Journal of Management and Business Economics, 2019
Purpose The purpose of this paper is to investigate whether Islamic stock indexes outperform conventional stock indexes, in terms of informational efficiency and risk, during the recent financial instability period.
Aymen Ben Rejeb, Mongi Arfaoui
exaly   +2 more sources