Results 161 to 170 of about 5,787,725 (306)

Firm turnover under asymmetric information: Tanzania's agro‐dealer sector

American Journal of Agricultural Economics, EarlyView.
Abstract We study firm turnover (i.e., entry and exit) and its consumer implications in a market characterized by asymmetric information. Using a three‐round census of agro‐dealers in Tanzania's Morogoro Region, we document annual firm entry and exit rates of 33% and 17%, respectively.
Alix Naugler, Hope Michelson, Sarah Janzen, Christopher Magomba   +3 more
wiley   +1 more source

Common fixed point theorems for ( T , g ) F -contraction in b-metric-like spaces. [PDF]

J Inequal Appl, 2018
Yu D, Chen C, Wang H.
europepmc   +1 more source

Policy uncertainty shocks and farm investments in Europe: Evidence from a newspaper‐based index

American Journal of Agricultural Economics, EarlyView.
Abstract In order to quantify the impact of agricultural policy uncertainty on European farmers' investment behavior, we construct a newspaper‐based monthly index of European agricultural policy uncertainty from 2013 to 2023. We use 327,224 newspaper articles to assess and compare the trends in policy uncertainty across five top agricultural producers ...
Viviana Garcia, Scott M. Swinton, Robert Finger   +2 more
wiley   +1 more source

Fluids under High Pressure Insighted by Operando Neutron Imaging and Molecular Dynamics Simulations

Advanced Physics Research, EarlyView.
There is limited research on how fluids behave under the extreme conditions found in fuel gas systems (high pressure) and catalytic reactors (high temperature and pressure). Neutron Imaging provides experimental data on interfacial tension, and Henry's law volatility constant, apparent molar volume, and diffusion coefficient for systems from toluene ...
Jonatan Šercl, Martin Melčák, Jongmin Lee, Eric Ricardo Carreón Ruiz, Pierre Boillat, Jan Heyda, Pavel Trtik, Ondřej Vopička   +7 more
wiley   +1 more source

Fixed point theorems on multi valued mappings in b-metric spaces. [PDF]

Springerplus, 2016
Maria Joseph J, Dayana Roselin D, Marudai M.   +2 more
europepmc   +1 more source

Generalization of Zhou Fixed Point Theorem

International Game Theory Review
We give two generalizations of the Zhou fixed point theorem. They weaken the subcompleteness condition of values, and relax the ascending condition of the correspondence. As an application, we derive a generalization of Topkis’ theorem on the existence and order structure of the set of Nash equilibria of supermodular games.
openaire   +3 more sources

Advanced Mathematical Extensions of Data Field Theory: Hyperbolic Geometry, Gauge Theory, and Higher Structures

Advanced Physics Research, EarlyView.
This graphical abstract illustrates the unified framework of Data Field Theory (DFT), integrating hyperbolic geometry for hierarchical embedding, gauge theory for internal symmetries, renormalization group for multi‐scale dynamics, Lévy processes for heavy‐tailed fluctuations, noncommutative geometry for quantum‐inspired cognition, and higher ...
Mohammadreza Nehzati
wiley   +1 more source

Coupled fixed point theorems in G b -metric space satisfying some rational contractive conditions. [PDF]

Springerplus, 2016
Khomdram B, Rohen Y, Singh TC.
europepmc   +1 more source

Tooth row allometry in domestic rabbits and nondomestic lagomorphs: Evidence for a decoupling of body and tooth row size changes in evolutionary time

The Anatomical Record, EarlyView.
Domestic rabbits of different body sizes differ disproportionately in the length of their tooth row or the length of their diastema. Abstract In various domestic mammals, smaller breeds tend to have proportionally larger teeth, whereas this is not a universal trend across mammals.
Ursina L. Fasciati, Christine Böhmer, Stefanie Ohlerth, Marcus Clauss   +3 more
wiley   +1 more source

Partial rectangular metric spaces and fixed point theorems. [PDF]

ScientificWorldJournal, 2014
Shukla S.
europepmc   +1 more source