Finance · 07/18/2025

American options are contracts that can be exercised at any time before expiration, with their pricing involving intrinsic value and time value. This paper defines out-of-the-money, in-the-money, and at-the-money options, and explores how time value and Greek letters (such as Theta, Vega, Delta, etc.) affect option prices, along with various factors like market volatility and time to expiration that impact pricing.

Education · 07/18/2025

Horace Mann School is an independent boarding school located in Connecticut, founded in 1891, enrolling students from various countries. The school focuses on fostering students' lifelong learning skills, sense of responsibility, and moral character while encouraging active participation in extracurricular activities. With a long-standing tradition of academic excellence, Horace Mann is dedicated to creating a campus atmosphere of mutual trust and respect, forming a rich and diverse learning

Education · 07/18/2025

U.S. parenting laws outline parental responsibilities to protect children from abuse, emphasizing cultural adaptation and external support.

Education · 03/17/2021

The Test Optional policy allows students to decide whether to submit their test scores, increasing competitiveness and shifting focus to other performance metrics.

Travel · 07/17/2025

This article discusses tourist expenditure levels in the United States, currency exchange, and tipping culture, providing a detailed analysis of price differences across various cities. It particularly highlights the shopping tax refund policies, food costs, and transportation expenses, offering practical information and advice for travelers planning to visit the US, enabling them to better manage their travel budget.

Travel · 07/17/2025

Albuquerque is famous for its hot air balloon festival and rich culture. This guide provides recommendations on transportation, accommodations, and itinerary planning to assist travelers in organizing their trip.

Telecom · 07/15/2025

This article provides a detailed overview of mobile plan types in the USA, including prepaid and postpaid options, along with the features of major carriers such as AT&T, Verizon, and T-Mobile. It also addresses common questions when purchasing mobile phones in the USA, aiming to assist readers in selecting the phone plan that best suits their needs.

Education · 07/17/2025

Columbia University, located in Manhattan, New York, is one of the world's leading private research universities, known for its excellence in academics and rich history of talent development. The campus offers convenient transportation and a safe living environment, with a variety of dining options available both on campus and in the surrounding area, ensuring a comfortable and convenient student life. Its programs in social sciences and financial engineering have relatively flexible

Apartment Rental · 07/17/2025

Finding a suitable rental property in New York can be a stressful process with many hidden risks. When renting, it's crucial to pay attention to factors such as transportation convenience, surrounding amenities, noise levels, safety, natural lighting, bedbug issues, building facilities, relevant policies, and the composition of rental costs. By considering these aspects, tenants can more smoothly find their ideal residence and enjoy a better living experience.

Transportation · 07/17/2025

The transportation system in the United States is known for its diversity and extensive coverage. Public transit services in major cities, such as New York's subway, offer high-capacity options. However, overall public transportation is relatively weak, with a widespread reliance on private vehicles. Developed road and airport networks enhance long-distance travel efficiency, while buses and tour shuttles facilitate short trips. The overall transportation services aim to meet the needs of

Taxation · 07/17/2025

This paper explores the differences between U.S. taxation and accounting, including temporary and permanent differences and their reporting methods, to enhance the understanding of financial management.

Education · 08/14/2025

This article provides a detailed overview of the process of the U.S. naturalization ceremony, including the oath of allegiance, the return of the green card, and the issuance of the citizenship certificate. It serves as a comprehensive guide and source of information for applicants aspiring to become U.S. citizens.

Culture · 08/14/2025

This article explores the trauma that immigrants and refugees may experience and its common symptoms. It offers effective strategies for coping with trauma, including maintaining physical activity, building connections with others, taking care of physical health, and finding ways to achieve calm. Additionally, it advises seeking professional mental health support in cases of ongoing distress.

Education · 08/14/2025

The HiSET exam offers adults who have not completed high school the chance to earn an equivalent diploma. By taking this exam, candidates can enhance their career competitiveness and educational opportunities. USAHello provides free online preparation courses and practice tests to assist candidates in successfully taking the exam.

Education · 08/14/2025

The HiSET® exam offers adults who did not complete high school the opportunity to earn a high school diploma. The exam covers subjects such as reading, writing, mathematics, science, and social studies, and is available in both English and Spanish. USAHello provides free preparatory courses and online tests to help candidates increase their chances of passing.