We study identification of combinatorial valuations from aggregate demand. Each utility function takes as arguments subsets or, alternatively, quantities of the multiple goods. We exploit mathematical insights from auction theory to generically identify the distribution of utility functions. In our setting, aggregate demand for each item is observable while demand for bundles is not. Neverthele...

Timber supply has traditionally been modelled using aggregate data. In this paper, we build aggregate supply models for four roundwood products for the US state of North Carolina from a stand-level harvest choice model applied to detailed forest inventory. The simulated elasticities of pulpwood supply are much lower than reported by previous studies. Cross price elasticities indicate a dominant...

In the context of breakdown wage-productivity nexus since 2008–09 Global Financial Crisis, this study analyzes that in UK by accounting for potential asymmetries and nonlinearities. Employing a NARDL framework data from 2000Q1 to 2018Q4, our key findings suggest aggregate productivity within retail sector have significant positive impact on wages sector. However, there are important The is foun...

It is now generally recognized that ribosomal aggregates (ergosomes or polysomes) rather than single ribosomes (73 S monomers) are the structures normally engaged in protein synthesis in the cytoplasm of rat liver (l-4) and other mammalian cells (5-13)) as well as in leaves of higher plants and in microorganisms (14-16). The conclusion that each ergosome is held together by one continuous stran...

Recent scientific concerns to achieve sustainability in construction have suggested the implementation of using recycled aggregate in concrete because it has the potential to reduce the demand for extraction of natural raw materials and decrease the volume of wastes landfilled. In this respect, this study aims to investigate the suitability of using ceramic tile (CT) and ceramic sanitary (CS) w...

Software Project management involves coordinating various aspects of a project in order to bring forth a positive result. There have been increasing challenges faced by Project Managers. The major challenges of project management include unrealistic deadlines, communication deficit, uncertain dependencies, failure to manage risk and invisibility of the intermediate products. Meeting these chall...

The present paper offers a meso-scale numerical model to investigate the effects of random distribution of aggregate particles and steel fibers on the elastic modulus of Steel Fiber Reinforced Concrete (SFRC). Meso-scale model distinctively models coarse aggregate, cementitious mortar, and Interfacial Transition Zone (ITZ) between aggregate, mortar, and steel fibers with their respective materi...

An aggregate game is a normal-form game with the property that each player’s payoff is a function only of his own strategy and an aggregate function of the strategy profile of all players. Aggregate games possess a set of purely algebraic properties that can often provide simple characterizations of equilibrium aggregates without first requiring that one solves for the equilibrium strategy prof...

The deformation and failure of loess in areas high seismic intensity are closely related to the dynamic vulnerability, which is primarily controlled by microstructure. This study performed a series triaxial tests microstructure on intact track quantitatively characterize evolution three-dimensional during deformation. microstructural observations were using micro-CT samples after varying vibrat...