an indirect tarns-log production function was employed to estimate the demand functions for such inputs as: fertilizer, seed, pesticide, water recourse and machinery as subject to budget constraint and while using data related to cotton producers in the three provinces of north khorasan, khorasane razavi, and south khorasan in 2007-8. lagrange coefficients with relation to cotton producers in t...

We study two related problems: the Maximum weightm′-edge cover (MWEC ) problem and the Fixed cost minimum edge cover (FCEC ) problem. In the MWEC problem, we are given an undirected simple graph G = (V,E) with integral vertex weights. The goal is to select a set U ⊆ V of maximum weight so that the number of edges with at least one endpoint in U is at most m′. Goldschmidt and Hochbaum [7] show t...

In the Maximum cost m′-subgraph problem we are given an undirected simple graph G(V,E) with weights w(v) on the vertices. The goal is to select a set U ⊆ V so that the number of edges with at least one endpoint in U is at most m′ with maximum weight W ∗. In [11] a ratio 3 approximation is given for problem. We improve this result by giving a 2 + approximation for the problem, for every constant...

Sequential Contests with Synergy and Budget Constraints We study a sequential Tullock contest with two stages and two identical prizes. The players compete for one prize in each stage and each player may win either one or two prizes. The players have either decreasing or increasing marginal values for the prizes, which are commonly known, and there is a constraint on the total effort that each ...

Current project introduces a prototype of a game with a purpose constructed using heuristics of social game genre to attract long-term player involvement, and user content generation, to meet the constrains of time and budget.

In keyword auctions, advertisers bid for keywords. Currently, bids and allocations are made on a per keyword basis. We show that this mechanism is neither efficient nor truthful under demand or budget constraints and provide a truthful efficient (quasi) polynomial mechanism for allocating keywords under budget constraints. As a side effect our proposed mechanism has higher revenue than the curr...

As the cost-driven public cloud services emerge, budget constraint is one of the primary design issues in large-scale scientific applications executed on heterogeneous cloud computing systems. Minimizing the schedule length while satisfying the budget constraint of an application is one of the most important quality of service requirements for cloud providers. A directed acyclic graph (DAG) can...

This empirical study addresses the research questions of how and why BI is used or not used to support the flexibility and integration needs in budgeting. Budgeting is considered a process with four main activities namely budget construction, budget consolidation, budget monitoring and budget reporting which belong equally to the flexibility and integration domains. Empirical data is obtained f...

Search-based advertising is a multi-billion industry which is part of the growing electronic commerce market. In this work, we study the search-based advertising market from the advertiser’s point of view. There are three natural participants in the search-based advertising: the advertisers, promoting their products to consumers based on their search queries, the users, which are searching for ...