Credit Cards and Money Demand: A Cross-sectional Study

Payment Cards and Money Demand in Belgium

Pediatric and Adolescent Chest Pain: A Cross Sectional Study

Introduction: Chest pain is a common compliant in children and adolescents visiting the clinic. We assess and analyze the etiology of chest pain among children referred a pediatric cardiology clinic in cardiac center in south west of Iran.Materials and Methods: We assessed children with chest pain who visited our medical center during March 2013 to April 2014. Any case of trauma associated ches...

Noise exposure and risk of hypertension: a cross-sectional study

  Abstract   Background: Previous studies have indicated an unspecific correlation between noise   exposure and blood pressure disturbances. Blood pressure disturbances could be caused   by the environmental hazards such as noise exposure. The aim of this study is to analyze   whether there is a relationship between noise exposure and hypertension.   Methods: Atotal sample of 218 workers workin...

Credit cards and inflation

The introduction (and widespread use) of credit cards increases trading efficiency but, by also increasing the velocity of money, it causes massive inflation, in the absence of monetary intervention. If the monetary authority attempts to restore pre-credit card price levels by reducing the money supply, it will have to sacrifice all the efficiency gains. When there is default on credit cards, t...

A Theory of Credit Cards

Recent U.S. antitrust litigation and concerns by regulatory authorities over fees in Australia and the European Union have questioned the nature of various bilateral relationships and associated fees underlying credit card transactions. A two-period model is constructed to study the interactions among consumers, merchants, and a card issuer. The model yields the following results. First, if the...