By Randomized Controlled Trials (RCTs) are renowned as the gold standard in clinical trials, predominantly used to gauge the efficacy of new treatments. However, the applicability of RCTs extends far beyond merely clinical trials. In my line of work, we employ randomized experiments to evaluate the performance of varying credit underwriting and account management policies. While …
In Pursuit of Passion: The Unfinished Quest for Career Fulfillment
Many individuals grapple with job satisfaction and long-term career goals. While some may not be content with the rate of their professional growth within their current organization, others may be introspective, contemplating their aspirations and objectives for the future. This article focuses on the latter group, a mentality that I believe is beneficial for everyone …
A Mid-Year Reflection on the Year 2023
At the beginning of 2023, I wrote a New Year Planning: 2023 | Data Driven Everything (data-driven-everything.com). With a quarter already behind us, it’s time to reflect on my progress. I aspire to become a person with the following traits: I believe most of my friends would agree that I am trustworthy, as I’ve received …
Revolutionizing Data Analytics with Text-to-SQL
A significant portion of a Data Analyst or Business Intelligence Analyst’s time is spent translating business questions into SQL queries. These analysts often serve as an interface between humans asking questions and the computers processing the data. In business settings, Software Engineers essentially act as translators, converting business requirements into executable code. With advancements in …
Markov Decision Process in Account Management of Consumer Lending
Recently, one of the main questions in my mind is how to adjust the user’s credit limit given a predicted risk. I consider myself a practitioner in the industry with limited experience. Currently, the account management process relies more on expert judgement. We may decrease the limit or freeze user accounts if they are not …
Creating A News Summarizer Using ChatGPT (Part 1)
Warren Buffet once said to Bill Gates after he said the computer is going to change everything: “I’ll stick to chewing gums, you stick to computers.”. We have to admit that we don’t understand a lot of things. It is wise to focus on our competencies. However, it should not stop us from exploring new …
Is the Modern Portfolio Theory Applicable to Managing Consumer Loan Portfolio?
Before I elaborate on the thoughts, I should give readers the typical risk management framework for existing customers used in consumer loans (In a mature market, the contribution of new users is relatively small). Users are segmented into different risk tiers corresponding to predicted default risks. It is similar to some credit rating agencies, like …
Summary On Bold vision: the untold story of Singapore’s reserves and its sovereign wealth fund
Recently, I have a chance to pick up a book on the history of GIC (Government of Singapore Investment Corporation). The book gives important backgrounds of the creation of GIC. In my opinion, it is a short history of Singapore’s reserve management and its currency. In 1965, Singapore separated from Malaysia to become an independent …
How I Stop Impulse Purchases?
In the last 2 years, I spent a lot of money on electronics and camera gear. Recently, I made an inventory list. I found that I have spent around HKD 250K. This is a large sum of money for me. I reflected on the reasons. First, it happens when I am stressed. Two years ago, …
How to Understand the Business Cycle Through Economic Indicators?
We read a lot about the economy in the news. They are like data points describing the state of the economy, such as GDP, capacity utilization, purchase managers’ index, cpi, etc. Without a general framework in mind, it is overwhelming. We need to have a framework in mind even if it may not be correct. …
