duration和period的区别？

一、duration和period的区别？

3.Period和Duration的区别

（1）包含属性不同

Period包含年数，月数，天数，而Duration只包含秒，纳秒。

Period只能返回年数，月数，天数；Duration可以返回天数，小时数，分钟数，毫秒数等。

（2）between方法可以使用的类型不同

Period只能使用LocalDate，Duration可以使用所有包含了time部分且实现了Temporal接口的类，比如LocalDateTime，LocalTime和Instant等。

Period：

public static Period between(LocalDate startDateInclusive, LocalDate endDateExclusive)

Duration：

public static Duration between(Temporal startInclusive, Temporal endExclusive)

（3）between获取天数差的区别

通过上面的实例可以看出：

Period p.getDays() 获取天数时，只会获取days属性值，而不会将年月部分都计算成天数，不会有2020.1.1和2019.1.1比较后获取天数为365天的情况。

public int getDays() {

return days;

}

Duration d.toDays() 获取天数时，会将秒属性转换成天数。

public long toDays() {

return seconds / SECONDS_PER_DAY;

}

所以，想要获取2个时间的相差总天数，只能用Duration。

（4）Period有获取总月数的方法，为什么没有获取总天数方法？

Period有获取总月数的方法：

public long toTotalMonths() {

return years * 12L + months; // no overflow

}

为什么没有获取总天数方法？

因为between后获取到的Period，不会记录2个日期中间的闰年信息，有闰年的存在，每年的天数不一定是365天，所以计算不准确。

二、duration和tetm的区别？

duration释义：

n. 持续，持续的时间，期间；音长，音延

tetm网络释义

三乙基锡酯

近年来,人们对有机锡单体的合成、纯化、聚合和共聚合进行了研究,但有关动力学的研究报道甚少,而甲基丙烯酸三乙基锡酯(TETM)的聚合动力学未见报道。

三、duration词根是什么？

duration词根分析:

解析

dur 持续 + tion 构成名词，表状态 -> 持续的状态 -> duration 持续

联想

action n. 行动；所做之事；动作 v. 对...采取行动

addition n. 加法；增加；增加的人或物

additional adj. 附加的，额外的

darn v. 织补 n. 织补处 adj. 该死的 adv. 极其

dour adj. 不苟言笑的

durable adj. 耐用的，持久的 n. 耐用品

四、Duration是什么意思？

　　duration英 [djuˈreɪʃn] 美 [duˈreɪʃn]　　n.持续，持续的时间，期间; (时间的) 持续，持久，连续; [语音学] 音长，音延;　　[例句]The storm was of short duration.　　暴风雨持续时间很短。　　[其他]复数：durations 形近词： abration foration aeration

五、英语duration和during区别？

duration用作名词 （n.）,期间，持续时间，例如：the duration of the Spring Festival,春节期间；during用作介词，prep. 在…期间,例如;during the holiday.

六、Understanding the Concept of Duration in Finance

When it comes to finance, the concept of duration plays a crucial role in analyzing fixed income investments. Duration measures the sensitivity of the price of a bond or a portfolio of bonds to changes in interest rates. It serves as a useful tool for investors, allowing them to assess the risk associated with fixed income securities and make informed investment decisions.

What is Duration?

Duration is a financial metric that helps investors understand the length of time it takes to receive the cash flows generated by a bond, taking into account both the coupon payments and the bond's principal repayment. It is a measure of the weighted average term-to-maturity of all the cash flows of a bond, expressed in years.

How is Duration Calculated?

The calculation of duration involves determining the present value of each cash flow and then calculating the weighted average of the present values, with the weights representing the proportion of each cash flow in the total value of the bond. Mathematically, duration is the weighted average of the time to receive each cash flow, with the weights being the present value of each cash flow divided by the bond's current market price.

The Relationship Between Duration and Interest Rates

Duration is a measure of a bond's sensitivity to interest rate changes. It provides an estimate of how much the price of a bond will change for a given change in interest rates. Bonds with longer durations are more sensitive to interest rate fluctuations compared to bonds with shorter durations. This is because the longer it takes to receive the future cash flows of a bond, the more affected its price will be by changes in interest rates.

Applications of Duration

Understanding duration can be beneficial for both individual investors and institutional investors. It helps investors assess the price risk associated with bonds and design strategies to manage their bond portfolios in different interest rate environments. Duration also serves as a benchmark for comparing fixed income investments and determining their relative risk. Additionally, duration can be used to estimate the potential impact of changes in interest rates on the value of a bond or a portfolio of bonds.

Limitations of Duration

While duration is a useful tool for assessing interest rate risk, it has certain limitations. First, duration assumes that interest rates change parallelly across the yield curve, which may not always be the case. Second, duration does not factor in other types of risks, such as credit risk or liquidity risk, which can also affect the price of a bond. Therefore, it is important to consider these limitations and use duration in conjunction with other risk measures when making investment decisions.

In conclusion, duration is a valuable concept in finance that helps investors assess the interest rate sensitivity of fixed income securities. By understanding duration, investors can make informed decisions about their bond investments and manage their portfolios effectively. It serves as a valuable tool for evaluating and comparing fixed income investments, as well as estimating their potential price changes in different interest rate scenarios.

Thank you for reading this article and we hope that it has provided you with a clear understanding of the meaning and importance of duration in finance.

七、Understanding Duration in Bond Finance

When it comes to bond investments, understanding the concept of duration is crucial. Duration plays a significant role in assessing the risk and potential returns of fixed income securities. In this article, we will delve into the intricacies of duration in bond finance and explain how it impacts investors.

What is Duration?

Duration is a measurement that estimates the sensitivity of a bond's price to changes in interest rates. It helps investors evaluate the risk associated with fluctuations in interest rates and make informed investment decisions. The higher the duration, the more sensitive the bond's price will be to interest rate changes.

Calculating Duration

Duration is calculated by considering several factors, including the bond's maturity, coupon payments, and current yield. Mathematically, duration is the weighted average of the present value of each coupon and principal payment, with the weights being the proportionate share of the present value as a percentage of the bond's price.

Interpreting Duration

Duration is measured in years and helps investors understand the potential impact of interest rate changes on a bond's value. For instance, a bond with a duration of 5 years can be expected to increase in value by approximately 5% if interest rates decline by 1%, assuming other factors remain constant. Conversely, if interest rates rise by 1%, the bond's value would be expected to decrease by approximately 5%.

Role of Duration in Bond Investing

Duration serves as a valuable tool for bond investors in managing risk. Investors can match the duration of their bond portfolios with their investment goals and risk tolerance. For example, investors seeking stable income may opt for bonds with shorter durations, as they are less sensitive to interest rate changes. On the other hand, investors willing to take on greater risk may invest in longer-duration bonds that offer potentially higher returns.

Limitations of Duration

While duration provides a useful gauge of interest rate risk, it has certain limitations. Duration assumes that the change in interest rates is parallel across all maturities, which may not always be the case. Also, duration does not consider other factors that may influence a bond's value, such as credit risk or changes in market conditions.

The Relationship Between Duration and Yields

There is an inverse relationship between duration and bond yields. This means that as a bond's yield increases, its duration decreases, and vice versa. Understanding this relationship is crucial for investors as they assess the potential risk and return of different bond investments.

Conclusion

Duration is an important concept in bond finance, providing insight into the risks and potential returns of fixed income investments. By understanding duration, investors can make more informed decisions based on their investment goals and risk tolerance. However, it is important to consider duration alongside other factors and to continually monitor market conditions when making investment choices.

Thank you for reading this article on understanding duration in bond finance. We hope that it has provided you with valuable insights into this crucial aspect of fixed income investing.

八、Understanding the Duration of English Finance

Introduction

Investing in the finance industry requires a deep understanding of various concepts and terminologies. One such concept is "laufzeit" in English finance. In this article, we will explore what "laufzeit" means in the context of English finance, and how it is relevant for investors.

The Meaning of "Laufzeit"

"Laufzeit" is a German word that translates to "duration" in English. In the finance industry, it refers to the length of time until a financial instrument reaches its maturity. Maturity is the date at which the issuer of the instrument repays the principal amount to the investor.

Importance of "Laufzeit" in English Finance

The duration or "laufzeit" of a financial instrument plays a crucial role in determining its risk and potential returns. Longer duration instruments tend to be riskier but offer higher returns, while shorter duration instruments are generally less risky but offer lower returns.

Factors Affecting "Laufzeit"

Several factors influence the duration or "laufzeit" of a financial instrument:

• Coupon Rate: Instruments with higher coupon rates tend to have shorter durations, as the investor receives more frequent interest payments.
• Market Conditions: Changes in interest rates can impact the duration of fixed-income instruments. Rising interest rates generally lead to shorter durations, as investors' potential returns are affected by the higher rates available in the market.
• Issuer's Credit Rating: Instruments issued by entities with higher credit ratings often have longer durations, as they are perceived as safer investments by investors.

Understanding the Relationship Between "Laufzeit" and Bond Prices

Duration or "laufzeit" also affects the price movement of bonds. When interest rates rise, the prices of bonds with longer duration tend to fall more compared to bonds with shorter duration. Conversely, when interest rates decline, the prices of bonds with longer duration tend to rise more compared to bonds with shorter duration.

Strategies for Managing "Laufzeit" Risk

Investors can employ various strategies to manage the risk associated with the duration or "laufzeit" of their investments:

• Diversification: By diversifying their investment portfolio across different maturities, investors can reduce the overall impact of changes in interest rates.
• Hedging: Hedging techniques, such as using interest rate swaps or futures contracts, can help investors offset potential losses caused by changes in interest rates.
• Active Management: Regularly reviewing and adjusting the investment portfolio based on market conditions can help investors optimize their holdings and take advantage of opportunities.

Conclusion

Understanding the duration or "laufzeit" of a financial instrument is crucial for investors in the English finance industry. It allows investors to assess the risk and potential returns associated with different investment options. By considering factors such as coupon rates, market conditions, and the issuer's credit rating, investors can make informed investment decisions to achieve their financial goals.

Thank you for reading this article and we hope it provided you with a better understanding of the concept of "laufzeit" in English finance.

九、The Duration of Finance BOLC and What It Involves

Introduction to Finance BOLC

Finance Basic Officer Leadership Course (BOLC) is an essential training program for officers pursuing careers in finance within the military. This article aims to provide detailed information about the duration of the Finance BOLC and its key components.

Duration of Finance BOLC

The Finance BOLC typically lasts for {duration of Finance BOLC}.

Curriculum Overview

The curriculum of Finance BOLC covers a wide range of topics to equip officers with the necessary knowledge and skills to fulfill their roles effectively. Some of the key components of the program include:

1. Financial Management Operations

During this phase, officers learn about the various financial management operations and procedures within the military, such as budgeting, accounting, and resource management. They also gain an understanding of how to apply financial principles to support mission planning and decision-making processes.

2. Federal Appropriations Law

Officers receive training on federal appropriations law to ensure compliance with legal and regulatory requirements while handling financial resources and executing financial operations. This segment focuses on understanding the restrictions and guidelines related to spending government funds.

3. Auditing and Internal Controls

Within this component, officers are instructed on the principles of auditing and internal controls. They learn how to assess financial risks, detect fraud, and implement measures to safeguard financial assets. The importance of maintaining accurate financial records and conducting regular audits is emphasized.

4. Military Pay and Allowances

Officers are educated about the intricacies of military pay and allowances, including understanding different pay structures, entitlements, and benefits. They acquire knowledge about calculating and administering accurate pay to servicemembers, ensuring compliance with military pay regulations.

5. Financial Planning and Analysis

During this segment, officers learn how to develop and analyze financial plans, perform cost-benefit analyses, and make informed financial recommendations. They also delve into the process of budget development, execution, and monitoring to support mission objectives.

Conclusion

Finance BOLC is a comprehensive training program that equips officers with the essential skills and knowledge required for finance roles within the military. With a duration of {duration}, this program covers various topics, including financial management operations, federal appropriations law, auditing, military pay, and financial planning. The training received during Finance BOLC prepares officers to effectively handle financial responsibilities and contribute to the financial well-being of the military.

Thank you for taking the time to read this article on the duration and components of Finance BOLC. We hope it has provided valuable insights into what to expect from this training program and its significance in the military finance sector.

十、Understanding Duration: A Key Concept in Finance

In the world of finance, the concept of duration plays a vital role in understanding the dynamics of investment and risk. This article aims to provide a comprehensive definition of duration, explain its significance in different financial contexts, and highlight its implications for investors.

What is Duration?

Duration is a measure of the sensitivity of the price of a financial asset, such as a bond or a fixed-income security, to changes in interest rates. It helps investors evaluate the potential impact of interest rate fluctuations on their investment portfolios.

Unlike maturity, which represents the time it takes for an investment to return its principal, duration takes into account both the timing and size of the cash flows generated by the asset. It considers the present value of these cash flows and calculates the average period it would take for an investment to recover its initial cost.

The Significance of Duration

Duration serves as a crucial risk management tool for investors and financial institutions. It allows them to assess the potential price volatility of fixed-income securities and make informed decisions to optimize their investment strategies. Understanding duration helps investors mitigate interest rate risk, hedge against market fluctuations, and maintain a balanced portfolio.

Types of Duration

There are several types of duration commonly used in finance, including Macaulay duration, modified duration, and effective duration. Each type serves a specific purpose and captures different aspects of the relationship between price and interest rate changes.

• Macaulay duration: This is the weighted average time to receive the cash flows from an investment, taking into account the present value of each cash flow. It represents the time it takes for an investment to recoup its original cost.
• Modified duration: This measures the percentage change in the price of a security for a 1% change in interest rates, assuming all other factors remain constant. It helps investors estimate how much the price of a bond will change due to interest rate fluctuations.
• Effective duration: While Macaulay duration and modified duration assume parallel shifts in the yield curve, effective duration considers non-parallel shifts. It takes into account the potential changes in the shape of the yield curve and provides a more realistic estimation of price volatility.

Implications for Investors

Understanding duration enables investors to make informed decisions based on their risk preferences and investment goals. A higher duration indicates higher price sensitivity to interest rates, implying greater potential for both gains and losses. Therefore, investors with a longer investment horizon and a higher risk tolerance may consider securities with longer durations to potentially earn higher returns.

Conversely, investors who have a shorter time horizon or a lower risk appetite may choose investments with shorter durations to minimize potential losses. Duration also helps investors compare different securities and assess their relative risk profiles, facilitating asset allocation and diversification strategies.

In Conclusion

Duration is a fundamental concept in finance that provides insights into the behavior of fixed-income securities in response to interest rate changes. By understanding duration and its various types, investors can effectively manage risks, optimize investment strategies, and achieve their financial goals.

Thank you for taking the time to read this article. We hope that it has provided a clear definition of duration and its significance in finance. By understanding duration, investors can make more informed decisions and navigate the complexities of the financial markets with confidence.