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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Estimation of Common Factors for Microstructure Noise and Effcient Price in a High-frequency Dual Factor Model
高频双因子模型 微结构 噪声公因数 效率价格 估计
2023/4/17
We develop the Double Principal Component Analysis (DPCA) based on a dual factor structure for high-frequency intraday returns contaminated by microstructure noise. The dual factor structure allows a ...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Improved Approximation Ratios of Fixed-Price Mechanisms in Bilateral Trades
双边贸易 固定价格机制 近似比率
2023/4/18
We study the performance of fixed-price mechanisms in the bilateral trade problem. We improve the approximation ratios of welfare-optimal mechanisms in several settings. In particular, when we have on...
02-02-2007，TALLAHASSEE - Florida Agriculture and Consumer Services Commissioner Charles H. Bronson today urged state residents to report any instances of price gouging in the wake of the tornadoes tha...
BTS Releases Third-Quarter 2006 Air Travel Price Index (ATPI);Air Fare Index Reaches Highest Third-Quarter Level in Index’s 11 Years;Top Increase in Cincinnati, Top Decrease in Lihue (Kauai)
Air Travel Price Index
2007/1/25
January 24, 2007，The Air Travel Price Index (ATPI) for the third quarter of 2006 reached the highest third- quarter level recorded in the 11-year period measured by the index, 7.5 percent higher than ...
January 21, 2007，BEIJING (XFN-ASIA) - Nickel prices surged substantially higher to end last week at over 28,000 usd per ton on the London Metals Exchange (LME) as inventory levels fell to near all-tim...
Missouri-Made Products Join the Shelves of Price Cutter Plus in Springfield
Cutter Springfield
2006/12/22
December 14, 2006, Sen. Norma Champion joined by Erick Taylor of RPCS, Inc., John Morrison with Missouri Grocers Association and Missouri Department of Agriculture representatives announced the new Mi...