This research proposes a model that calculates the customer lifetime value and simultaneously considers network effects. An oligopoly market is also considered in which companies compete with each other. Each company has number of buyers sellers offers its services to free while receiving sellers' membership fees return. Interestingly, customers interact other change companies' clients. interac...

We consider a frictional market where buyers are uncoordinated and sellers cannot commit ex-ante to either a per-unit price or quantity of a divisible good. Sellers then can exploit their local monopoly power by adjusting prices or quantities once the local demand is realized. We find that when sellers can adjust quantities ex-post, there exists a unique symmetric equilibrium where the increase...

We study scenarios where multiple sellers of a homogeneous good compete on prices, where each seller can only sell to some subset of the buyers. Crucially, sellers cannot price-discriminate between buyers. We model the structure of the competition by a graph (or hyper-graph), with nodes representing the sellers and edges representing populations of buyers. We study equilibria in the game betwee...

Gender inequality in contemporary U.S. society is a well-documented, widespread phenomenon. However, little is known about gender disparities in product markets. This study is the first to use actual market data to study the behavior of women and men as sellers and buyers and differences in market outcomes. We analyze a unique and large data set containing all eBay auction transactions of most ...

in this research, the steady-state flow filed around a 3d body and rotor configuration of the robin helicopter is simulated. the rotor is modeled by an actuator disk. for this purpose, an annular computational domain replaces the rotor and some modeled source terms are added to the momentum equations. this modeling of rotor considerably speed up computational time. the flow field over this heli...

The agar-slant medium of Sellers was evaluated as an identification aid in the differentiation between gram-negative bacilli of medical interest (Enterobacteriaceae excluded) and some of their saprophytic associates. With Sellers medium, a larger number of bacterial species and genera could be differentiated than with the oxidation-fermentation medium of Hugh and Leifson. Some species whose rec...

This paper is about a market for credence goods. With a credence good consumers are never sure about the extent of the good they actually need. Therefore, sellers act as experts determining the customers’ requirements. This information asymmetry between buyers and sellers obviously creates strong incentives for sellers to cheat on services. We analyze whether the market mechanism may induce non...

Consumers respond positively to products tied to charity, particularly from sellers that are relatively new and hence have limited alternative means for assuring quality. We establish this result using data from a diverse group of eBay sellers who “experiment” with charity by varying the presence of a donation in a set of otherwise matched product listings. Most of charity’s benefits accrue to ...

In this report, we consider a simple economic market model: the Sellers Market. In this market, n sellers have various strategies which depend on any number of the (n−1) other sellers, or the current or starting market price of this market. We consider a variety of seller strategies, both deterministic and nondeterministic, defined as real-valued functions, which may or may not be bounded. We a...