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全部话题 - 话题: ibnr
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g****o
发帖数: 124
1
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
In health, we don't say "reported loss". total incurred = paid + IBNR (
incurred but not reported) + reported but not paid. some actuary use
incurred = paid + IBNA (incurred by not adjudicated) + adjudicated but not
paid. Typically, you don't need a reserve for the "reported but not paid" as
the number should be known or close to be known. It is the IBNR or IBNA
that needs a reserve. We do use lag triangles and CFs to estimate INBR and I
agree with one of the posts that the method is same as wha... 阅读全帖
c*****9
发帖数: 11
2
来自主题: Actuary版 - Thank you IBNR!
Got this msg today:
"您在Actuary版发表的标题为报offer及寻求帮助的文章被设置为保留文章,本站奖励您
伪币10.00个,请注意查收。"
What a surprise!Thank you IBNR!!
Btw, what is 伪币? How I can use it?
e*******c
发帖数: 2133
3
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
目前在看health reserving的东西,有点疑问。首先,health reserving和p&C
reserving很像,但又有不少区别。比如p&C reserving里会有reported(incurred)
loss, paid loss的区别,还会要考虑p/i ratio.比如比较新的munich chain ladder就
是可以缩小p/i ratio的一个方法;但是,在health里好像没有reported loss这个概念
,只有paid loss,然后自己算completion factor(就是1/LDF,财险里的reported %(好
像是啊)),然后用paid loss/CF算出来estimated incurred loss,也就是说人家都用不
上munich chain ladder这么有技术含量的东西。
再有个小疑问就是健康险里算completion factor我觉得又不太像1/ldf,好像是1/(LDF1
*LDF2*LDF3....LDFn),关键是ldf这里已经是cumulative loss的了,再乘起来就挺奇怪
的了。举个数字的例子吧:1... 阅读全帖
s*******0
发帖数: 3461
4
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
ibnr版大是专家 我等着看回答啊
你的问题看的不是很明白啊 每一年的ratio算出来 最终的ratio当然需要全部乘起来
能不能在说的通俗点啊
ldf 应该是每一年的损失比率吧? 就是说每一年比上年的损失比率的均值,最终的损失应该要吧因子乘起来
看你的描述应该是用的BF法则,先估计出最终的损失,然后再除以发展因子来估计未决赔款准备金吧。但是发展因子还是需要每年的乘起来,这个不会变的。
a********t
发帖数: 1810
5
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
对吗?P&C里,有VALUATION DATE,在那一天REPORTED的LOSS叫REPORTED LOSS,PAY出去
LOSS叫PAID LOSS,还有一个ULTIMATE LOSS(INCURRED LOSS?),它和REPORTED LOSS的差
叫IBNR吧?
在HEALTH里,是先求INCURRED LOSS,用IL求COMPLETION FACTOR,你说反了.
Y*H
发帖数: 1582
6
来自主题: Actuary版 - 怎麼求IBNR?
Health IBNR?

个没有,过几个月才来一次。。。中间的LOSS都是0
s****a
发帖数: 261
7
来自主题: Actuary版 - 怎麼求IBNR?
为什么中间几个月都是0呢?是因为member太少, 事件发生概率太低, 还是数据有问
题...?
这种情况用completion factor估计IBNR合适吗?

个没有,过几个月才来一次。。。中间的LOSS都是0
Y*H
发帖数: 1582
8
来自主题: Actuary版 - 怎麼求IBNR?
I never worked in reserving, but I believe you can trend the prior completed
claims to project the incurred claims in future months, then subtract the
paid amount to get the IBNR.

个没有,过几个月才来一次。。。中间的LOSS都是0
G**********0
发帖数: 391
9
来自主题: Returnee版 - [合集] [bssd]要回国了-LP篇(上)
☆─────────────────────────────────────☆
prgn (要回国了) 于 (Sun Dec 5 00:29:11 2010, 美东) 提到:
当年我来美国读书的主要推动力量是LP,而我这次回国工作,她也是主要的推手之一。
所以,就先从LP说起。
LP和我是6年的中学同学。初中的时候,最初她是坐在我后排,学习暴好,长得又非常
乖巧可爱。那时我就知道傻玩,学习成绩中游,个子中等,要不是运动会上跑的快和经
常被老师没收小说之外,估计都不会被老师记得。有时候闷骚一下,捉弄捉弄同桌女生
,LP那时候挺烦我的。初二的一次语文课上,我又坐不住了,用纸折了一只青蛙,写上
同桌的名字,弹着玩。我就听到后排的LP小声说了句“你个小魔头”(后来才知道,她
不是在说我),忘记了这是在上课,我很自然的回应“你个小魔女”,结果全班暴笑。
我就被语文老师请到前面站了一节课。从那以后,小魔女的外号就传遍整个年级。
高一开学报到的那天,我初中班总共7个人分到一个班,其中就包括我和小魔女。那时
,我也长成大个了,小魔女也是女大十八变,变成了大美女。尽管同在一个班,我俩也
基本... 阅读全帖
s***s
发帖数: 4329
10
【 以下文字转载自 Actuary 讨论区 】
发信人: IBNR (IBNR), 信区: Actuary
标 题: 学精算的你们伤不起啊!!!!!伤!!不!!起!! [zz 咆哮体]
关键字: 咆哮体,精算
发信站: BBS 未名空间站 (Mon Mar 14 22:19:14 2011, 美东)
老子六年前开始学精算!!!!!!!!!!!!!!!!!!!
于是踏上了尼玛不归路啊!!!!!!!!!!!!!!!!!!!!!!
谁跟老子讲学精算将来年薪百万啊!!!!!!!!!!
坑爹那!!!!!!!!!!你给我一百万啊!!!!!!!!!
买彩票几率更高啊有没有!!!!!!!!!!!
谁再跟老子讲精算师是金领十大最有前途职业 老子一计算器拽死你啊!!!!!!!

!!!!!


尼玛这都学的神马啊!!!!!!!!!
算老公至少活五年老婆比老公多活两年的概率多少啊!!!!!!!!!!!!
或者老公最多活五年老婆后死的概率啊!!!!!!!!!!
你80岁死我比你死先啊!!!!!!!!!!!
尼玛啊!!!!!!!!!!能盼人点好不!!!!!!!!能不能啊!!!!!!!
!!!!!!!!!... 阅读全帖
s**********l
发帖数: 629
11
来自主题: Actuary版 - [合集] 想问问on-site interview
☆─────────────────────────────────────☆
发信人: cauchy911 (柯西收敛), 信区: Actuary
标 题: 想问问on-site interview
发信站: BBS 未名空间站 (Thu Feb 8 22:26:25 2007)
小生最近通过on-campus interview 拿到一个insurance company的 on-site
interview
由于没有过job-hunting的经验,所以想问问on-site interview和on-campus
interview的区别
一般都谈什么话题或者问/被问什么样的问题
还有就是把on-site interview变成offer的可能性大么?
☆─────────────────────────────────────☆
发信人: IBNR (IBNR), 信区: Actuary
标 题: Re: 想问问on-site interview
发信站: BBS 未名空间站 (Fri Feb 9 18:48:07 2007), 转信

一个两点分布。
☆────────
a*****b
发帖数: 2789
12
版大太没同情心了。
我想起IBNR就是气,我们公司今年连续3吃改变IBNR的算法,害得我工作量巨增!
s******r
发帖数: 27
13
来自主题: JobHunting版 - 关于risk analysis的问题
forecasts and monitors transaction loss, and conducts deep dive analysis on
the loss trend
其中的loss trend 是什么啊,有哪一些,怎么分析啊
models for loss reserving,IBNR development.
这又那一些建model的方式啊,怎么做???
不好意思,小硕,在面这方试,什么都不懂。请见谅。谢谢大家
l*****i
发帖数: 17
14
来自主题: Actuary版 - Interview questions to share:)
It is really good to get some basic idea about these two questions. I think
sometimes we need to prepare answers for both sides. As for me,I do prefer
an insurance company to a consulting one, but I would not like to miss any
chance in consulting companies.
As for life or P&C, I took one course in life insurance but have no idea
about P&C.
IBNR,it seems like you are working in a P&C company,would you like to share
some experience in this area?
Thanks a lot!
m****e
发帖数: 109
15
来自主题: Actuary版 - Who all are online?
我也一直不明白这个包子到底什么用。还有每次IBNR斑竹总是很大方得赏我什么币。这
是一回事吗?
u*******x
发帖数: 22
16
来自主题: Actuary版 - UPDATED 精算Salary Survey

你怎么把你第一个帖子改啦,但是IBNR的帖子你没权限改咯,呵呵!(你是哪个版的版
主?)
像你这种情况,是不是大大的negotiate了一把?反正那么多backup......
s******2
发帖数: 5274
17
赞IBNR版主的香喷喷的粽子!
c*d
发帖数: 53
18
版主IBNR先是在我来问问题的时候发了包子,然后又用G贴的方式暗示
那个包子原来不是白给的,这个债还是早还早了:)现在的情况是offer
已经接受,公司还在做背景调查,希望最后能顺利上班,开始我的第一
份精算工作,同时也是人生的第一份正式全职工作。
文笔不好,而且因为我没有身份的问题,不知经历写出来能有多大参考
作用,就记一篇流水帐好了。
s*******0
发帖数: 3461
19
来自主题: Actuary版 - 国内精算保险市场答疑
to shelden
你太客气了
你这个问题范围比较广 呵呵 慢慢回答了
先把ibnr的答了 看问题 估计和大家的切身利益相关
这个周末写完她 当做一个作业 呵呵
G*****u
发帖数: 1222
20
来自主题: Actuary版 - 面经
谢了
5个candidate选1个 就看命了
今天面试跟HM聊了一会IBNR 哈哈
I**R
发帖数: 1309
21
来自主题: Actuary版 - Thank you IBNR!
u r welcome
u can buy some decorations/clothes here
s********s
发帖数: 33
22
来自主题: Actuary版 - 恳求看法和建议,正负都欢迎
谢谢jvidal03, zhyuan, IBNR和Smatho的回复。
我曾经考虑过pharmD,但是我在的地方还是要修他们的预科,不能转。但其实药剂和医
学在课程设计上还是有一定的不同,药剂更偏重于药物化学, 没有那么多的临床。而
且,pharmD还要读四年,觉得时间太长了, 有点受不了。
Smatho,你说的最后一句话,我也非常担心:)
s********s
发帖数: 33
23
来自主题: Actuary版 - 恳求看法和建议,正负都欢迎
Good to know, 谢谢IBNR。
s******l
发帖数: 78
24
来自主题: Actuary版 - 弱问意见,望得到牛人指点
我没有实习经历,所以没在这两个领域有工作体验,现在过了4门考试,修过life con
和loss model的课,最近有这两个方面的面试,所以开始考虑以后的career path.我想
这两个领域一个是考cas一个是soa,一个产品很多元化,一个比较稳定。。。所谓我没
什么头绪,想请教一下IBNR牛牛!我是新手,比较愚钝,多多包涵!谢谢!
g*****t
发帖数: 53
25
IBNR, thank you so much for your opinion, which makes me realize that my
situation may not be as an oxymoron as it looks like. Hopefully that it will
turn out that they view my taking exams as an asset, instead of liability.
s*******0
发帖数: 3461
26
来自主题: Actuary版 - 请教国内的财险公司
hi 关于书的话
论坛上的精算师手册当中 有相关的非寿险的部分 有ibnr rbbr 的 相关算法
网上随便下一些书也行 还有就是可以看cas考试的制定教材 想看书的话 有很多的 关
键是看不完 呵呵
H******t
发帖数: 687
27
IBNR:
Yes, there are companies (for example mine) that has actuaries who do dental
pricing only.
It might sound not so actuarial, but the products can get pretty creative.
s****a
发帖数: 261
28
背景:条件一般,精算master,八月毕业,四门考试,一个internship,需要sponsor
找工过程中简历投了无数,电话interview只拿到四五个,onsite就一个,最后拿到
offer一个。感觉考试多的xdjm就不要投只要求一门考试的位置了,这样的位置要么直
接把我拒掉,要么就没有下文,反倒是senior一些的位置,还能拿到interview.
先感谢红旗手提供的不sponsor公司的信息,节约了不少时间和精力。另外还要感谢
IBNR和MAOGE,托两位的福,base直接给到最高,另外还拿到3000 relocation.
s*******0
发帖数: 3461
29
关键就是和 ibnr说的一样 appropriate expense 里面包含了 commision fee 了吗
我觉得一般情况是是包含的
M****8
发帖数: 28
30
IBNR read me correctly. My starting salary may be good but I have not
received big raises since.
As for difference in pay, consulting might pay slightly higher (not sure if
is true) but is also more stressful (true for sure). But ultimately, it
depends on how often people get promoted or change jobs.
s*******0
发帖数: 3461
31
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
btw 原来今天独立日啊,怪不得很多餐馆不开,差点没饭吃!
e*******c
发帖数: 2133
32
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
你说的是age to age ldf,算cumulative肯定得都乘起来,然后取倒数应该就是report
%对吧?但是我看到的好像是取完倒数了,在cumulatively multiply一下,非常困惑
这事啊

损失应该要吧因子乘起来
决赔款准备金吧。但是发展因子还是需要每年的乘起来,这个不会变的。
s*******0
发帖数: 3461
33
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
有没有模型 ?
把你msn 站内给我
如果不是机密的话
s*******0
发帖数: 3461
34
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
版大 怎么不出来回答问题 呵呵
G*****u
发帖数: 1222
35
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
p&c里面也不是全用reported losses
需要看line of business以及数据的可靠性
"关键是ldf这里已经是cumulative loss的了"?这句话怎么理解 没看懂
ldf全称是loss development factor
在triangle里面是通过当月的loss(either paid or incurred) 除以前月的loss
是一个ratio 怎么会是cumulative loss
关于你health insurance completion factor计算那段 很可能是你弄错了
我以前见过一些health reserving triangle
和P&c reserving triangle排列的朝向不太一样
但是最终计算结果应该是相同的
e*******c
发帖数: 2133
36
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
"关键是ldf这里已经是cumulative loss的了"我指的是age to ultimate LDF.ATU
factor不就是把所有的ldf乘一块吗?换句话说每一个age的cumulative loss/ultimate
loss=report %(CF in Health reserving),然后1/report %=ATU LDF.
不知您能不能先讲讲incurred loss和paid loss的区别和p/i ratio的事
b********6
发帖数: 195
37
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
Incurred loss=paid loss +case reserve
p/i ratio=paid loss/incurred loss
e*******c
发帖数: 2133
38
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
在health 里也一样,reserve=incurred loss-paid loss,但是incurred loss=paid
loss*(ATU LDF),这样的话incurred loss其实是取决于paid loss的,我不知道在p&c
里是否也是一样
I**R
发帖数: 1309
39
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
sorry but I don't know much about health insurance. what
you described about the p&c method seems right to me.

LDF1
,2
e*******c
发帖数: 2133
40
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
Question: Is reported loss totally dependent on paid loss?If so, then P/I
ratio is just 1/(ATU LDF), since incurred loss=paid loss*(ATU LDF)
I**R
发帖数: 1309
41
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)

c
ATU means age-to-ultimate? if so , I think your "incurred loss" is different
from the "incurred loss" we normaly quoted. the post above has the most
commonly used definition.
your "incurred loss" sounds more like ultimate loss calculated using
chain ladder method(paid)
I**R
发帖数: 1309
42
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
again, as blabla0706 stated above, in p&c
incurred = paid + case reserve
e*******c
发帖数: 2133
43
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
how do you get incurred loss? It's reported from client or it's calculated
based on paid loss?
I**R
发帖数: 1309
44
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
incurred = paid + case reserve
when a claim is reported to the insurer, a claim number is assigned
to it, and depending on the nature of the claim, claim department
would set up a case reserve for that. at any time, the cumulative
paid amount + the case reserve = incurred.
on day 1, probably your paid is 0(since you rarely pay anything
right away), and your case is some non-zero value. as you have
more info regarding the claim, you would pay more and more(assuming
no negative paid), and your cas... 阅读全帖
a********t
发帖数: 1810
45
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
incurred loss in health is not equal to incurred loss in P&C
incurred loss=paid loss/completion factor in health
incurred loss in P&C is more complicated
e*******c
发帖数: 2133
46
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
Thanks, that makes a lot of sense. Case reserve=reported loss-paid loss is
always true whether in P&C or Health, right?
I was thinking about using munich chain ladder method in health reserving
and found the different definition of incurred loss between P&C and Health
a********t
发帖数: 1810
47
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
yes, it is true, but reported loss is only used in P&C, I don't think there
is name item "reported loss" in health
e*******c
发帖数: 2133
48
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
right, incurred loss in health is actually "estimated incurred loss". In p&c
, incurred loss=reported loss

there
e*******c
发帖数: 2133
49
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
没,incurred loss=reported loss,在p&c里,ultimate loss是ultimate loss,单另
儿的
I**R
发帖数: 1309
50
来自主题: Actuary版 - Health Reserving(@IBNR,@sword1900)
thanks for the clarificaiton

as
I
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