For reservoirs with combined storage capacity for flood control and beneficial purposes, there tends to be potential benefit loss when the limited water level is used in medium small floods. How find optimal scheme profit-making pursue optimization of comprehensive benefits has always been a difficult problem multi-objective reservoir operation. Based on principle maximum obtained by product co...

We reconsider the well known Becker-Coase (BC ) argument, according to which changes in divorce laws should not affect divorce rates, in the context of households which consume public goods in addition to private goods. For this result to hold, utility must be transferable both within marriage and upon divorce, and the marginal rate of substitution between public and private consumption needs t...

PURPOSE The aim of this retrospective study was to evaluate the cumulative survival rate of tapered implant with a sandblasted and acid-etched surface placed in edentulous patients. MATERIALS AND METHODS A retrospective study was performed by evaluating MIS seven implants consecutively placed from December 2004 to January 2008. Patient records were reviewed to determine gender, age at implant...

In this paper we provide a micro model of loans which the lender is a monopolistic bank and the borrower is a competitive consumer with consumption habits who may default on part of his debt. In this setting, we prove that the loan demand curve is kinked and therefore it is possible to find interest rate rigidity in equilibrium as well as asymmetric response of loans to interest rate variations...

OBJECTIVE To compare the course of patients treated with tilted implants versus those treated conventionally with axial implants, analyzing the success rate and marginal bone loss. MATERIAL AND METHODS A PubMed search was made using the key words "tilted implants ", "angled implants ", "angulated implants ", "inclined implants " and "maxillary atrophy. " A review was made of the articles publ...

A theoretical analysis considers the impact of a typical system of redistributive “fiscal equalization” transfers on the taxing effort of local jurisdictions. More specifically, it shows that the marginal contribution rate, i.e. the rate at which an increase in the tax base reduces those transfers, might be positively associated with the local tax rate while the volume of grants received is lik...

It is commonly accepted in the industrial organization literature that rate of return regulation leads to inefficient outcomes. Since prices are calculated so as to cover the regulated firm’s average cost, which includes the periodic fixed costs associated with plant property and equipment, the conventional argument is that prices must exceed the marginal cost of production. This paper examines...