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全部话题 - 话题: thresholds
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p****e
发帖数: 3548
1
Will all sellers receive a Form 1099-K?
No. Only sellers who exceed the IRS thresholds will receive Form 1099-K.
Sellers exceed the IRS thresholds when they receive over $20,000 USD in
gross payment volume for the sale of goods or services AND receive over 200
payments for goods or services in the same calendar year.
不要超过2w一年就好了
不过paypal这个回答。。。。
Will I need to upgrade to a business account?
If you have a Personal or Premier account and you provide an Employer
Identification Number (EIN) to PayPa... 阅读全帖
s******t
发帖数: 2374
2
来自主题: ebiz版 - 普及一下 paypal的 200 and 20000
具体请看:
https://cms.paypal.com/us/cgi-bin/marketingweb?cmd=_render-content&content_
ID=marketing_us/IRS6050W
How is the $20,000 calculated? Will it be calculated based on net or gross
transaction earnings?
As required by IRC 6050W, the $20,000 will be calculated by looking at a
seller’s gross payment volume for sales of goods or services. Gross amount
means that any adjustments for credits, cash equivalents, discounts, fees,
refunded amounts or any other amounts will not be netted out.
In addition... 阅读全帖
d****o
发帖数: 531
3
By law/regulation, or theoretically speaking:
Business here is in a general sense, even though you don't make any profit
or end up with losing money.
You need a business license to conduct business activities, but states also
establish certain threshold levels, under which you don't need a business
license, such as $2000 or $6000 annually. Similar threshold levels by usps
shipment exemptions.
In addition, if you do business at your resident home (e.g., pack baby
formula inside your home), you ne... 阅读全帖
K*C
发帖数: 2825
4
来自主题: ebiz版 - FBA明年继续涨价
Here is a summary of the upcoming fee changes:
Effective February 18, 2015
Fulfillment Fees: Pick & Pack and Weight Handling Fees will increase
across all product sizes and weights.
Dimensional Weight threshold: We will adjust when we apply Dimensional
Weight—a calculation based on a unit's cubic volume. Currently, if the unit
's volume is greater than 5,184 cubic inches, Fulfillment Fees are
calculated based on the greater of Dimensional Weight or unit weight.
Effective February 18, 201... 阅读全帖
m****e
发帖数: 173
5
来自主题: Faculty版 - tufts的工学院如何
谢谢,补充一句, 有一个所谓的thresholds, 法学院一年四十几万,其他学院三十几
万的数字,但不是说不可以给这个threshold以上。只是这个数字以上要通过provost和
EVP批。
c***x
发帖数: 1826
6

-
以前为人父母版有几个大娃父母深入讨论过这个问题,可惜是一年以前的帖子,找不到
了。
印象中很多大学的录取网站上就有一个链接,填入相关的家庭 income and
demographic information,网站就会自动计算是否可以减免学费或者减免多少。不同
地区和不同学校的threshold有差异,主要考虑当地的 population median income。华
人双职工夫妇一般就轻易超过这个threshold了,单职工家庭还取决于家庭人口结构。
你的直觉很好,你提出的一个人工作可能更好的情况,有时在margin上确实会存在。减
免学费这个benefit本质上是一个transfer payment,或者说是负税收,而税收最主要
的考量是公平,相应的trade-off 就是对劳动供给的disincentive。
在一个信息完全的假想情况下,收入和能力会一一对应,这个时候如果只考虑效率而不
考虑公平,最优的税收机制是累退税而不是累进税,1996年诺奖获得者 James
Mirrlees 的主要工作。当然,现实世界里的税收设计要复杂的多,兼顾公平和激励,
可以想象在一个能力是连... 阅读全帖
H*********r
发帖数: 659
7
If TAMU is the most recent new member, I think TAMU sets the threshold for
future members. Utah and Virginia are not better than TAMU, only George
Tech is above this threshold.
l*******s
发帖数: 3562
8
我再给你推荐一个价钱合适的吧
Threshold 300的后级,Ebay上大概500美刀能搞定,年头老了点,但是推801可以达到8
0%的水准
如果还嫌贵的话,Nakamichi的PA7,就是中道做的Threshold的克隆,300美刀应该可以
搞定,可以推出70%的效果
这是性价比最高的推801的选择了,是我多年经验总结,轻易我不告诉人
你给我发个包子吧
C********n
发帖数: 6682
9
来自主题: HiFi版 - 音量,分贝,听力
还是看wiki的table吧
http://en.wikipedia.org/wiki/Sound_pressure#Examples_of_sound_pressure_and_sound_pressure_levels
Shockwave (distorted sound waves > 1 atm; waveform valleys are clipped at
zero pressure) >101,325 Pa >194 dB
Theoretical limit for undistorted sound at 1 atmosphere environmental
pressure 101,325 Pa ~194.094 dB
Theoretical limit based on Atmospheric pressure records, Min & Max western
Pacific Ocean 1979 (Typhoon Tip) & Agata, U.S.S.R. 1968 87,000 - 108,
400 Pa ... 阅读全帖
K****D
发帖数: 30533
10
来自主题: Investment版 - Does diversification work?
Biggest issue: how do you execute your strategy?
It's very obvious at present. But what about those days when the
two EMA curves cross each other often? Do you strictly trade whenever
the curves cross? Or do you set a dead-band threshold (as most electronic
engineerings do) and only trade if the trend is more obvious than the
threshold?
If the former, you pay a lot of commission (and time). If the latter,
you lose a couple of percents during the transition.
2nd issue: as I pointed out before, yo
h******n
发帖数: 106
11
来自主题: Investment版 - 大家每年可以存多少钱?
小看美国人民了。
Everyone talks about the 1% -- but who are they exactly?
Here is the breakdown:
It takes at least $389,000 to make the club: That was the minimum threshold
of adjusted gross income in 2011, the most recent year for which the IRS has
final data.
In 2001, you had to make at least $306,635 to make the cut. But if you
factor in inflation, that's roughly the same amount as in 2011.
The minimum threshold was much higher in 2007, just ahead of the economic
collapse. That year you needed $426,4... 阅读全帖
c****p
发帖数: 6474
12
来自主题: JobHunting版 - 贡献几道面试题
设两个变量,一个叫left,一个叫right。
设两个端点,begin和end,
设一个threshold = (begin + end)>>1。
如果读进来的数在[begin,end]之间的话:
若它小于threshold,left++,否则right++。
读完以后根据left和right的值确定下一次应该二分哪个区间,并确定相应的新的thres
hold。
最衰的情况下,每一位都需要一次二分,每二分一次都需要读一次原始文件。
不过话说无论如何都用不着32次吧。
o******e
发帖数: 81
13
来自主题: JobHunting版 - L 电面
可不可以用sqrt?double的power可以拆成整数和小数部分。小数部分类似这样:
// Assume 0 < power <= 1
double Power(double value, double power)
{
const double Threshold = 1E-10;
double result = 1;
for (int p = 1; power > Threshold; value = Math.Sqrt(value), p /= 2)
if (power >= p)
{
power -= p;
result *= value;
}
return result;
}
m*****n
发帖数: 48
14
来自主题: JobHunting版 - G家电面
牛啥,G的电面都过不了,丢死人了。
第二题没写code,就是不停问你问题,不停的延伸。
这题需要点machine learning的背景。每页都有error,word-by-word比较肯定是不行
的,而且全文比较也太expensive了。有时候一个单词被错误的分为两个,有时候单词
有脱漏,所以要做alignment,有点象DNA sequence alignment一样,找出两页之间概
率最大的alignment,看看mismatch rate多大,大于某个threshold就认为这两页不同
。随机抽取若干页,比如随机从两本页数相同的书里抽取相应的十页,如果有9页被判
定相同,可以认为这两本书相同。
当然,实际上要做supervised learning,用一些label的sample来train model,调整
里面的threshold和其他参数,以得到最大的accuracy。
I*******x
发帖数: 20
15
去年我找工作的时候发现板上针对data scientist,machine learning engineer面试
题总结很少,所以尽量申请了很多公司面试相关职位,想看看行业里这个方向都在问什
么。有幸去过不少地方面试,现在把那些题目整理整理(全部来自Amazon, Microsoft,
Yelp, Pinterest,
Square, Google, Glassdoor, Groupon的电面和onsite),希望能帮助在找相关工作的
同学们。
题目写的简略,请大家见谅
====================
1. Given a coin you don’t know it’s fair or unfair. Throw it 6 times and
get 1 tail and 5 head. Determine whether it’s fair or not. What’s your
confidence value?
2. Given Amazon data, how to predict which users are going to be top
shoppers ... 阅读全帖
I*******x
发帖数: 20
16
去年我找工作的时候发现板上针对data scientist,machine learning engineer面试
题总结很少,所以尽量申请了很多公司面试相关职位,想看看行业里这个方向都在问什
么。有幸去过不少地方面试,现在把那些题目整理整理(全部来自Amazon, Microsoft,
Yelp, Pinterest,
Square, Google, Glassdoor, Groupon的电面和onsite),希望能帮助在找相关工作的
同学们。
题目写的简略,请大家见谅
====================
1. Given a coin you don’t know it’s fair or unfair. Throw it 6 times and
get 1 tail and 5 head. Determine whether it’s fair or not. What’s your
confidence value?
2. Given Amazon data, how to predict which users are going to be top
shoppers ... 阅读全帖
x*****n
发帖数: 195
17
来自主题: JobHunting版 - LinkedIn电面面经
没做过realtime sys的项目。根据批处理数据的经验瞎想一下:
如果store调用频率高或者test频率高应该怎么设计。
store(int newInt)使用多: 可以考虑开个list来cash下最近的new ints,超过一定的
time threshold或者size threshold才往hashtable里flush。这样减少对hashtable的
写操作,否则过多lock性能不佳,也可能block test操作。
test(int targetInt)使用多:考虑对hashtable做多个copy,也就是search system常
用的replica设计,让test操作assign到10个、100个hashtable instances上去跑,每
个再对应一个thread。
x*****0
发帖数: 452
18
这家知名p公司有道知名设计题,名曰: 成就系统设计。搜遍了地里再加上自己的不断
脑补,终于得出了如下完整的题目:(脑补偏了,概不负责啊)
(1) Player 可以有动物,金币, level(就理解成练到几级了吧)
(2) 当 player 达到了某种 requirement 或者某几种 requirements,就会得到某种
achievement,
因为 player 达到了这种 achievement,系统当然要 reward 这个 player 一些东东啦
!(动物,
金币, level, 随便来。 然而并没有妹子。 Sad! )
以上两点就是我认为的这题这几个 objects( player, requirement, achievement,
reward) 之间的
关系。
再补充一点关于 requirement, 这里的 requirement 可以是:
a. Level>threshold ,比如你作为一个 player 终于打怪升级到了 20 级。
b. 或者 requirement 也可以是你终于收集齐了 7 个 rejects,
c. 或者 requirement... 阅读全帖
b*******e
发帖数: 67
19
来自主题: Living版 - Re: look how earthy I am !
very easy to find out:
solid hard wood floor is 3/4" thick, engineered wood floor only 3/8" thick,
you can tell easily what did you get @ door threshold where the wood floor
terminates and transfers to other material, say ceramic tiles... since most of
the ceramic tiles nowadays are thin set glu on, it need a big wood threshold
piece to pick up the height difference
v**a
发帖数: 2062
20
来自主题: Living版 - 问撑不撑的90%都是BSO
读小学的时候,听说隔壁有千元存款,当时可觉得是个天文数字的BSO,国内读大学的时候,哪个同学有几百元存款都觉得别人在BSO。当留学生的时候,谁说自己有万刀存款,年收入四五万刀,也觉得人家很BSO。工作了以后这BSO threshold提高了,觉得十几万刀家庭收入一二十万存款才是BSO,现在threshold进一步提高,凡是不能cashoffer都算不上BSO。
小人得志一回,我老人家现在都是cash offer,虽然俺的cash offer还不够人家房奴区
的首付。
a**********l
发帖数: 920
21
这大方。
那房子价格本来就低,还让LZ随手甩个5000。
再喜欢,要是做了冤大头,也成了烫手的山芋了。变得别扭了。
每个DEAL要有THRESHOLD,LZ的THRESHOLD是210K。 多一分都不能给。
你买房高了房价8000,也不一定不是DEAL啊。
ESCALATION CLAUSE 是合法行为。应该是LZ的,买方AGENT要不遵从CLAUSE把DEAL给了
别人。那是犯法。
j***k
发帖数: 2719
22
yes. but works a little differently.
1. You can deduct ur interest + property tax + any other expenses against
the rental income.
2. If the above expense is greater than your rental income AND ur income is
below certain threshold (forgot how much, maybe $100K, very low), u can then
deduct the remaining against your other source of income, like your salary.
3. But if your income is greater than the threshold, you would not be able
deduct the differences, but you could add the loss to the cost bas... 阅读全帖
r*****n
发帖数: 3014
23
买木地板的地方都有molding/threshold卖的,你根据高度买合适的种类装上就行了
http://www.hardwoodinstaller.com/hardwoodinstaller/thresholds.h
k******o
发帖数: 3328
24
来自主题: Living版 - 准备出租,修房的钱可避税?
Yes, your (passive) rental income could be used to be offset your active
income (i.e. W2) only if your AGI (Adjusted Gross Income) is below threshold
(i.e. $100K). It will be phased out completely under high threshold (i.e. $
150K).

be
below
p******n
发帖数: 66
25
来自主题: Living版 - 解答空调
家里空调坏了,想请教大侠指点一下方向。网购的万用表还没到。家附近的店里都不卖
能测电容的表,所以还没有测量数据。
从power-off 到 power-on,可以看到the plunger of contactor kicked in. 这时
机器发出较响的嗡嗡声,compressor 应该在工作,但是condenser fan 不转,用棍子拨
可以自用转动,但不拨就不转. 然后将 threshold 温度调到比室温高很多,但是
contactor
并不很快断开,大概过了5分钟才断。又将 threshold 温度调到比室温低很多, 等了
很久 contactor 也没有再连上。有两个single-capacitor, 2008年的, 表面很多锈,
但摸起来还是挺平的,并没有凸起爆裂。
求指点.
p******n
发帖数: 66
26
来自主题: Living版 - 解答空调
家里空调坏了,想请教大侠指点一下方向。网购的万用表还没到。家附近的店里都不卖
能测电容的表,所以还没有测量数据。
从power-off 到 power-on,可以看到the plunger of contactor kicked in. 这时
机器发出较响的嗡嗡声,compressor 应该在工作,但是condenser fan 不转,用棍子拨
可以自用转动,但不拨就不转. 然后将 threshold 温度调到比室温高很多,但是
contactor
并不很快断开,大概过了5分钟才断。又将 threshold 温度调到比室温低很多, 等了
很久 contactor 也没有再连上。有两个single-capacitor, 2008年的, 表面很多锈,
但摸起来还是挺平的,并没有凸起爆裂。
求指点.
c*********7
发帖数: 19373
27
来自主题: Money版 - 我居然还未拿到starwood pts..
看来赚到了,发了个email的到如下:
Dear xx,
I understand your concern regarding 30,000 Starpoints offer and I apologize
for the inconvenience caused.
I would like to inform you that 30,000 Starpoints are issued 8 to 12 weeks
after the $1,000 spend threshold is reached.
I see that you completed the spend threshold of $1,000 on August 22, 2010.
Therefore, you should have received these bonus points by November 22, 2010.
However, it seems due to a technical error, you have not received these
bonus points and I ap... 阅读全帖
c*********7
发帖数: 19373
28
【 以下文字转载自 FLY 俱乐部 】
发信人: canhelp2007 (Ming), 信区: FLY
标 题: 还没拿到SPG点数的有福了
发信站: BBS 未名空间站 (Tue Nov 23 18:24:24 2010, 美东)
【 以下文字转载自 Money 讨论区 】
发信人: canhelp2007 (Ming), 信区: Money
标 题: Re: 我居然还未拿到starwood pts..
发信站: BBS 未名空间站 (Tue Nov 23 18:19:59 2010, 美东)
看来赚到了,发了个email的到如下:
Dear xx,
I understand your concern regarding 30,000 Starpoints offer and I apologize
for the inconvenience caused.
I would like to inform you that 30,000 Starpoints are issued 8 to 12 weeks
after the $1,000 spend threshold is ... 阅读全帖
k**********g
发帖数: 244
29
来自主题: Money版 - AMEX GOLD 50k and 2yr confirmed
confirm 了
Response (S.Bandopadhyay) 05/22/2011 07:46 AM
Dear Mr. Hu Jintao,
I am sorry for the inconvenience caused to you due to this matter.
As of now, your account has the offer of 10,000 Membership Rewards
points after the first purchase.
But, as I understand from your email, you applied for the offer id 5889
as per which you are to receive 2 years of Card membership waiver and
50,000 bonus points credited within 8-10 weeks after $500 spend within
the first 3 months of Card membership.
S... 阅读全帖
z****l
发帖数: 5282
30
☆─────────────────────────────────────☆
horselibra (冷静神功 - 修炼第一层) 于 (Wed Jun 30 21:32:30 2010, 美东) 提到:
另外,如果不住旅馆的,
想换机票的话也很不错
20000点可以换好多家航空公司的25000点
直接就是一张往返机票

发信人: horselibra (冷静神功 - 修炼第一层), 信区: ebiz
标 题: starwood AMEX cc 30000 points Bonus
发信站: BBS 未名空间站 (Wed Jun 30 21:14:42 2010, 美东)
http://slickdeals.net/forums/showthread.php?sduid=91487&t=21048
神医神护游医散户骚货旅游开房必备的仙卡阿
approved的请自觉给俺个包子攒rp阿
☆─────────────────────────────────────☆
nkbluemouse (蓝皮鼠) 于 (Wed Jun 30 23:45:36 2010, 美东) ... 阅读全帖
z****l
发帖数: 5282
31
☆─────────────────────────────────────☆
atuwh (atuwh) 于 (Sun May 22 00:08:05 2011, 美东) 提到:
今天中午收到的卡,和大家一样,term里只写了1yr annual fee waived。不管,先上
网激活卡,然后给csr发message。我提到了bonus id 5889,50k和2yr fee waived。强
调了有screenshot,问他要不要。
一个小时后收到消息确认了50k和2yr fee waived。
经验:
1. 强调收到的term和当时申请的不一样。
2. 报5889的bonus id。
3. 强调有screenshot,问他要不要。
关于75k的bonus id 5894,我觉得是专门针对AMEX新用户的。如果你是第一次申到AMEX
的卡,我觉得可以报这个id争取一下。
不过我已经有2张AMEX的卡了,所以还是用的5889,50k和2yr free已经满足了。呵呵。
☆─────────────────────────────────────☆
nimoooo (... 阅读全帖
y****i
发帖数: 17878
32
来自主题: Money版 - Paypal My Cash card @ CVS using CC
$500 limit can be lifted by linking a bank account and a credit card.
keep your receipts and credit card statements just in case to show they are
personal payments.
"Are personal payments that I receive counted in the total that will be
reported to the IRS?
No. Personal payments that are not payments for the sale of goods or
services will not be counted when determining if the IRS thresholds have
been reached and will not be included on your Form 1099-K if you exceed the
thresholds. However, all... 阅读全帖
y****i
发帖数: 17878
33
来自主题: Money版 - Paypal My Cash card @ CVS using CC
$500 limit can be lifted by linking a bank account and a credit card.
keep your receipts and credit card statements just in case to show they are
personal payments.
"Are personal payments that I receive counted in the total that will be
reported to the IRS?
No. Personal payments that are not payments for the sale of goods or
services will not be counted when determining if the IRS thresholds have
been reached and will not be included on your Form 1099-K if you exceed the
thresholds. However, all... 阅读全帖
p**5
发帖数: 2544
34
来自主题: Money版 - Google wallet 转钱
it has been there for a long time
https://support.google.com/checkout/sell/answer/1211160?hl=en
Will I receive a copy of the Form 1099-K if I only meet one of the
thresholds?
No, a seller will only receive a copy of the Form 1099-K if they meet both
thresholds.
How will I receive a copy of the Form 1099-K?
If your gross sales exceed $20,000 and transactions exceed 200 transactions
in a calendar year, a copy of Form 1099-K will be sent through postal mail
on January 31, 2012
z****l
发帖数: 5282
35
☆─────────────────────────────────────☆
yudeli (余德利) 于 (Sun Nov 11 23:17:28 2012, 美东) 提到:
went to several CVS today and bought few thousands using CC
some stores only allow you to buy 2 cards per day
$3.95 activation fee, load directly to your Paypal account
there is a $500 daily limit and $4,000 monthly limit when sending money from
your My Cash cards to your PayPal Account
https://www.paypal-cash.com/
WARNING: go easy on this one because Paypal is not as nice as AmEx. this
should only be ... 阅读全帖
m**2
发帖数: 3374
36
没绿卡另说!有绿卡的和公民,even you are a billionaire, as long as you do
not have enough taxable income in a tax year, you can get medicaid!
The Affordable Care Act (ACA) goes a long way toward simplifying Medicaid
eligibility. Go try and figure it out from the legislative language and you
’re not likely to believe me. Fortunately, Joy Johnson Wilson, Health
Policy Director for the National Conference of State Legislatures, has done
the dirty work. In a handy document Wilson summarizes Medicaid and CHIP
prov... 阅读全帖
U*******B
发帖数: 2547
37
Some people claim that with careful use and good strategy, an average
consumer can earn a consistent profit by using credit cards for their reward
programs.
What is manufactured spending?
Manufactured spending is a term that refers to the practice of using credit
cards without actually incurring new charges. For example, using a credit
card to buy a reload card, using the reload card to add funds to a prepaid
debit card, and then using the prepaid debit card to pay off the original
credit card c... 阅读全帖
S*****i
发帖数: 610
38
去square看了一下, 是and 关系..
Do I Qualify for a 1099-K?
All accounts that meet both the following criteria qualify for a 1099-K and
must be reported to the IRS:
More than $20,000 in gross sales from goods or services in the calendar year
AND
more than 200 transactions in the calendar year
These reporting thresholds are based on the aggregate gross sales volume
processed on all accounts that use the same Tax Identification Number (TIN).
If you have multiple accounts that use the same TIN, we will aggre... 阅读全帖
p********n
发帖数: 74
39
来自主题: Money版 - Chase蓝宝石匹配了50k UR
Dear XXX,
Thank you for contacting Chase about matching the sign-up bonus offer on
your Sapphire Preferred account.
We are delighted to welcome you as a new customer. I am glad to confirm that
we will add 10,000 points to your account ending in xxxx so that it
receives a total of 50,000 points for an enrollment bonus. In order for us
to do so, please meet the spending threshold within three months from the
account open date. Once the spending threshold is met, please contact us and
we will add t... 阅读全帖
m*******g
发帖数: 3044
40
Under the terms and conditions of the promotional offer, the following
charges do not count towards the threshold amount to qualify for the MR
bonus points: fees or interest charges; balance transfers; cash advances;
purchases of Travelers Cheques; purchases or reloading of prepaid cards; or
purchases of other cash equivalents. Our records indicate that a portion of
the purchases on your card were deemed ineligible towards the threshold
amount. As a result, you did not meet the spend requirement... 阅读全帖
N*****Q
发帖数: 830
41
小字没看到说lifetime只能拿一次,难道amex是默认的once lifetime么?
1. To qualify for the 50,000 bonus miles, you must make eligible purchases
with your Gold Delta SkyMiles® Credit Card that total $1,000 or more (
the "Threshold Amount") within your first 3 months of Card Membership
starting from the date your account is approved. Miles will be credited to
your account 6-8 weeks after you reach the Threshold Amount. Eligible
purchases can be made by the Basic Card Member and any Additional Card
Members on a sing... 阅读全帖
g*********s
发帖数: 280
42
我一小时challenge test时是130,ob说threshold是110。把我送去做2小时tolerance
test,那个糖水腻的我,然后1小时直接飚到200,2小时还好,只比threshold高一点点
,于是不幸成了糖妈,天天罚我自己自戳手指4次。
d*g
发帖数: 16592
43
来自主题: Parenting版 - 有意思
有句话大意是,没有绝对的忠诚,只是诱惑够不够。
其实大家大可不必拿什么尊重规定,遵守制度,诚信这些大帽子扣在别人头上,
不妨讨论一下,什么样的benefit/cost ratio是自己的threshold,是不是其他人
threshold太低了,自己觉得被人代表了丢了面子。
其实违反任何规定都是有代价的,人家自己承担代价了,即使是蝇头小利,也是人家的
事情。
c***x
发帖数: 1826
44
来自主题: Parenting版 - 钢琴体育进出的一个经济学分析

你时常强调宇宙的对称性,那么与沟命海心相对应的就是海命沟心。如果本来具备鸿鹄
的raw talent,偏偏认定或者被父母认定是燕雀,为了防止练习高飞的时候摔死摔伤而
从不练习展翅翱翔,那么最后也就真的成了燕雀。当然,这种false negative确实是小
概率事件,技术进步,成本降低,风险减小,都有助于概率更进一步降低。
此外,我们的talent可能是天生的,但是动态来看productivity可能是可以累积的。当
然,如果你把随机过程完全模型化为单位根过程,那么一切都是random shocks决定的
,我们的讨论已经没有意义,大家随便掷骰子生活。可是,大量的经验数据表明,我们
的亲生经历揭示,productivity是一个稳定的马尔科夫过程,前期的努力勤奋可以有效
积累到当期,而当期的努力勤奋又作用于下一期。shocks make our life up and down
, but in the long run they will be smoothed out. 这并不意味一个raw talent差
的人通过一生的努力勤奋就必然超过那些raw talent强的人,但是他超... 阅读全帖
c*********i
发帖数: 2749
45
【 以下文字转载自 PDA 讨论区 】
发信人: pking (pking), 信区: PDA
标 题: 用R+的同学们,R+ 12月1日全面停止所有非mad plans
发信站: BBS 未名空间站 (Mon Nov 21 23:34:52 2016, 美东)
http://www.mitbbs.com/article_t/CellularPlan/24793.html
时隔两年,R+再次跑路。。。。。。
PSA: Ring Plus to Discontinue all non Mad Plans 12/1/16.
https://social.ringplus.net/discussion/9288
Dear Members,
My apologies for not addressing you earlier. I know many of you expected me
to comment sooner.
While my team and I have finished long negotiations with different parties,
other n... 阅读全帖
r*****g
发帖数: 9999
46
我的感觉,国内治安肯定没有美国好,但命案相对人口基数来说较少,美国这边因为有
枪,小打小闹的threshold比较高,但一旦过了这个threshold就很容易出人命,我们这
噶大不算大城市,还算治安好的地方,但命案也是屡见不鲜。
o****u
发帖数: 214
47
怎么署名的你自己看吧。
Highly Unidirectional Emission and Ultralow-Threshold Lasing from On-Chip
Ultrahigh-Q Microcavities
Jiang, XF; Xiao, YF*; Zou, CL; He, LN; Dong, CH; Li, BB; Li, Y; Sun, FW ;
Yang, L; Gong, QH*
ADVANCED MATERIALS
Volume: 24 Issue: 35 Pages: OP260-OP264
E-mail Addresses:y****[email protected]; q****[email protected]
Free-space coupled, ultralow-threshold Raman lasing from a silica
microcavity
Jiang, XF; Xiao, YF*; Yang, QF; Shao, LB; Clements, WR ; Gong, QH*
APPLIED PHYSICS LETTERS
Volume: 103... 阅读全帖
M*****8
发帖数: 17722
48
SPY, 20111027, 128.7500, -2.2543, -1.8%
Extreme %: -4.1%, +6.0%
Thresholds %: -2.2%, +2.1%
Expect one more day up, since threshold of -2.2% not met.
Best estimate of near-term downside target = 128.75 - 2.25 = 126.50
r***l
发帖数: 9084
49
来自主题: Stock版 - something is wrong with qihu
连续几天上了“Threshold”黑名单,和大垃圾股ldk/amr齐名,股价在走低,citron的
做空看来还是有些作用
http://www.bloomberg.com/news/2011-12-20/nyse-threshold-securit
H******i
发帖数: 4704
50
来自主题: Stock版 - QIHU 能入了么?
December 15: QIHU on REG SHO Threshold Security List
December 26: QIHU no longer on REG SHO Threshold Security List
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