Merchant service fee optimization for credit card transactions

Title Merchant service fee optimization for credit card transactions
Author Deniz, Berk Cihan
Publication Date: 2024
Subject Industrial engineering, Capital assets pricing model, Credit cards, Mathematical optimization, Customer relations, Management, Finance, Mathematical models
Type Document
Language English
Digital Yes
Manuscript No
Library: Özyeğin University
Record ID d13456ac-d594-43a7-a1bd-2f22c6c1df86
Library Location Department of Industrial Engineering
Date 2024
Sample Text This thesis aims to enhance the current pricing policies set to optimize customer retention by proposing enhanced methodologies, focusing on finding efficient algorithms that apply to large-scale businesses. Customer retention studies have a vital effect on companies since they affect the generated revenue and market share. This study mainly investigates pricing factors and their relationship with customer churn. The aim is to find commission rates that will be used to charge merchants when making transactions with Point of Sale (POS) devices. An important aspect to remember is the price sensitivity of those merchants as there happens to be a negative relationship between their retention, and pricing policies. We designed a nonlinear mathematical model to solve this problem. However, solving nonlinear models for large-scale prob lems is not effective when computational power and current solving techniques are considered. As an approach to solving this phenomenon, we discretized the nonlin ear form of the model and proposed an alternative integer programming model. By doing so, solvers used to optimize the integer programming models were able to solve higher scales of the problem when compared with global nonlinear solvers. However, it is observed that IP solvers fail to solve the proposed mathematical model after a certain size. To solve this dimensionality problem, stratification techniques are used to divide the problem and optimize subparts of the whole problem separately while limitations and the objective of the problem are considered., Bu tez projesinde fiyatlandırma prosed¨ur¨u ¨uzerinde geli¸stirmeler yapılarak, m¨u¸steri tutundurma optimizasyonu ¨uzerinde ¸calı¸smalar yapılmı¸s ve geli¸stirilen algoritmaların b¨uy¨uk kitleler ¨uzerinde uygulanabilirli˘gi dikkate alınmı¸stır. M¨u¸steri tutundurma op timizasyonu, gelir ve market hacmi gibi metrikleri direkt etkiledi˘gi i¸cin firmalar i¸cin ciddi bir ¨oneme sahiptir. Bu ¸calı¸sma genel olarak fiyatlama ve bunun kayıp oranına etkisini inceleyip, en iyi fiyatlamanın nasıl yapılaca˘gını ara¸stırmaktadır. Ama¸c banka ile ¸calı¸san ¨uye i¸syerlerine, POS cihazlarını kullandıklarında ¨odemekle y¨uk¨uml¨u olduk ları komisyon oranlarını sa˘glamaktır. Bu i¸slem yapılırken, ¨uye i¸syerlerinin fiyat has sasiyeti de dikkate alınmalıdır ¸c¨unk¨u komisyon oranları kayıp oranlarını etkileye bilmektedir. Bu problemi ¸c¨ozebilmek i¸cin ¨once do˘grusal olmayan bir matematiksel model tasarlanmı¸stır. Do˘grusal olmayan modelleri ¸c¨ozmek i¸cin g¨un¨um¨uzde kullanılan ¸c¨oz¨um tekniklerinin y¨uksek hesaplama g¨uc¨u istemesinden kaynaklı, tasarlanan mod elin b¨uy¨uk kitleler ¨uzerinde uygulanamayaca˘gı g¨ozlemlenmi¸stir. Ol¸ceklendirme prob- ¨ lemini ¸c¨ozebilmek i¸cin tasarlanan model ayrıkla¸stırılmı¸s ve do˘grusal forma d¨on¨u¸st¨ur¨ul m¨u¸st¨ur. Do˘grusal modellerde kullanılan ¸c¨oz¨um algoritmaları, b¨uy¨uk kitleler ile ¸calı¸sma ya uygun olsa dahi, bu ¸calı¸smada kullanılan b¨uy¨ukl¨ukte bir kitle i¸cin yetersiz kalmı¸s ve bu problemin ¸c¨oz¨um¨u i¸cin katmanlı ¨ornekleme teknikleri kullanılmı¸stır.
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Merchant service fee optimization for credit card transactions

Author Deniz, Berk Cihan
Publication Date 2024
Subject Industrial engineering, Capital assets pricing model, Credit cards, Mathematical optimization, Customer relations, Management, Finance, Mathematical models
Type Document
Language English
Digital Yes
Manuscript No
Library Özyeğin University
Record ID d13456ac-d594-43a7-a1bd-2f22c6c1df86
Library Location Department of Industrial Engineering
Date 2024
Sample Text This thesis aims to enhance the current pricing policies set to optimize customer retention by proposing enhanced methodologies, focusing on finding efficient algorithms that apply to large-scale businesses. Customer retention studies have a vital effect on companies since they affect the generated revenue and market share. This study mainly investigates pricing factors and their relationship with customer churn. The aim is to find commission rates that will be used to charge merchants when making transactions with Point of Sale (POS) devices. An important aspect to remember is the price sensitivity of those merchants as there happens to be a negative relationship between their retention, and pricing policies. We designed a nonlinear mathematical model to solve this problem. However, solving nonlinear models for large-scale prob lems is not effective when computational power and current solving techniques are considered. As an approach to solving this phenomenon, we discretized the nonlin ear form of the model and proposed an alternative integer programming model. By doing so, solvers used to optimize the integer programming models were able to solve higher scales of the problem when compared with global nonlinear solvers. However, it is observed that IP solvers fail to solve the proposed mathematical model after a certain size. To solve this dimensionality problem, stratification techniques are used to divide the problem and optimize subparts of the whole problem separately while limitations and the objective of the problem are considered., Bu tez projesinde fiyatlandırma prosed¨ur¨u ¨uzerinde geli¸stirmeler yapılarak, m¨u¸steri tutundurma optimizasyonu ¨uzerinde ¸calı¸smalar yapılmı¸s ve geli¸stirilen algoritmaların b¨uy¨uk kitleler ¨uzerinde uygulanabilirli˘gi dikkate alınmı¸stır. M¨u¸steri tutundurma op timizasyonu, gelir ve market hacmi gibi metrikleri direkt etkiledi˘gi i¸cin firmalar i¸cin ciddi bir ¨oneme sahiptir. Bu ¸calı¸sma genel olarak fiyatlama ve bunun kayıp oranına etkisini inceleyip, en iyi fiyatlamanın nasıl yapılaca˘gını ara¸stırmaktadır. Ama¸c banka ile ¸calı¸san ¨uye i¸syerlerine, POS cihazlarını kullandıklarında ¨odemekle y¨uk¨uml¨u olduk ları komisyon oranlarını sa˘glamaktır. Bu i¸slem yapılırken, ¨uye i¸syerlerinin fiyat has sasiyeti de dikkate alınmalıdır ¸c¨unk¨u komisyon oranları kayıp oranlarını etkileye bilmektedir. Bu problemi ¸c¨ozebilmek i¸cin ¨once do˘grusal olmayan bir matematiksel model tasarlanmı¸stır. Do˘grusal olmayan modelleri ¸c¨ozmek i¸cin g¨un¨um¨uzde kullanılan ¸c¨oz¨um tekniklerinin y¨uksek hesaplama g¨uc¨u istemesinden kaynaklı, tasarlanan mod elin b¨uy¨uk kitleler ¨uzerinde uygulanamayaca˘gı g¨ozlemlenmi¸stir. Ol¸ceklendirme prob- ¨ lemini ¸c¨ozebilmek i¸cin tasarlanan model ayrıkla¸stırılmı¸s ve do˘grusal forma d¨on¨u¸st¨ur¨ul m¨u¸st¨ur. Do˘grusal modellerde kullanılan ¸c¨oz¨um algoritmaları, b¨uy¨uk kitleler ile ¸calı¸sma ya uygun olsa dahi, bu ¸calı¸smada kullanılan b¨uy¨ukl¨ukte bir kitle i¸cin yetersiz kalmı¸s ve bu problemin ¸c¨oz¨um¨u i¸cin katmanlı ¨ornekleme teknikleri kullanılmı¸stır.
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