Results 141 to 150 of about 32,711 (308)

Generalizing Determinacy under Monetary and Fiscal Policy Switches: The Case of the Zero Lower Bound

open access: yesJournal of Money, Credit and Banking, EarlyView.
Abstract In a fixed‐regime context, it has been established since the work of Leeper (1991) that a determinate and unique equilibrium can be achieved under both monetary dominance (characterized by an active monetary policy and a passive fiscal policy) and fiscal dominance (characterized by an active fiscal policy and a passive monetary policy) regimes
SEONGHOON CHO, ANTONIO MORENO
wiley   +1 more source

The Diagonalized Newton Algorithm for Nonnegative Matrix Factorization

open access: yes, 2013
Non-negative matrix factorization (NMF) has become a popular machine learning approach to many problems in text mining, speech and image processing, bio-informatics and seismic data analysis to name a few.
Van hamme, Hugo
core  

Asset Pricing and Risk‐Sharing Implications of Alternative Pension Plan Systems

open access: yesThe Journal of Finance, EarlyView.
ABSTRACT We show that incorporating defined benefit pension funds in an incomplete markets asset pricing model improves its ability to match the historical equity premium and riskless rate and has important risk‐sharing implications. We document the importance of the pension fund's size and asset demands, and a new risk channel arising from ...
NUNO COIMBRA   +3 more
wiley   +1 more source

Monetary Policy and Wealth Effects: The Role of Risk and Heterogeneity

open access: yesThe Journal of Finance, EarlyView.
ABSTRACT We study the role of asset revaluation in the monetary transmission mechanism. We build an analytical heterogeneous‐agents model with two main ingredients: (i) rare disasters and (ii) heterogeneous beliefs. The model captures time‐varying risk premia and precautionary savings in a setting that nests the textbook New Keynesian model.
NICOLAS CARAMP, DEJANIR H. SILVA
wiley   +1 more source

Clustering research on graph regularization nonnegative matrix factorization based on auxiliary variables under orthogonal conditions

open access: yesAIMS Mathematics
This paper addressed the challenge of image clustering by integrating graph and orthogonality mechanisms into the nonnegative matrix factorization algorithm.
Caiping Wang   +3 more
doaj   +1 more source

The Mixed Gamble of Competitive Dynamics in Family‐Controlled Firms

open access: yesJournal of Management Studies, EarlyView.
Abstract We extend the mixed gamble perspective to explain how family‐controlled firms frame and evaluate the difficult trade‐off between potential gains and losses in financial wealth (FW) and socioemotional wealth (SEW) when pursuing portfolio‐level strategic initiatives, as captured by competitive aggressiveness and complexity.
Jaeyoung Cho   +2 more
wiley   +1 more source

Mitral Valve Segmentation Using Robust Nonnegative Matrix Factorization. [PDF]

open access: yesJ Imaging, 2021
Dröge H   +5 more
europepmc   +1 more source

On Mixed Memberships and Symmetric Nonnegative Matrix Factorizations [PDF]

open access: green, 2016
Xueyu Mao   +2 more
openalex   +1 more source

Sequential Outlier Detection in Nonstationary Time Series

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT A novel method for sequential outlier detection in nonstationary time series is proposed. The method tests the null hypothesis of “no outlier” at each time point, addressing the multiple testing problem by bounding the error probability of successive tests, using extreme‐value theory. The asymptotic properties of the test statistic are studied
Florian Heinrichs   +2 more
wiley   +1 more source

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