r*l
2 楼
how to fill 6g? can I leave it as blank?
j*d
3 楼
最近有个朋友想来美国旅游，听说美国的个人旅游开放了，不知道哪位知道都需要哪些
文件？谢谢
文件？谢谢
N5
4 楼
【 以下文字转载自 Military 讨论区 】
发信人: N5 (1684753590), 信区: Military
标 题: 坚决反对国女学习西方剃腋毛等
发信站: BBS 未名空间站 (Sat Dec 10 11:14:51 2011, 美东)
作为国人传统是身体发肤受之父母,不能随便剃的.
而且我不觉得剃了又啥好
发信人: N5 (1684753590), 信区: Military
标 题: 坚决反对国女学习西方剃腋毛等
发信站: BBS 未名空间站 (Sat Dec 10 11:14:51 2011, 美东)
作为国人传统是身体发肤受之父母,不能随便剃的.
而且我不觉得剃了又啥好
x*m
5 楼
如果可执行文件的权限是- - x，OS怎么保证用户在不能读取文件内容的同时，却可以
载入可执行文件并且执行？谢谢。
载入可执行文件并且执行？谢谢。
S*s
6 楼
【 以下文字转载自 Joke 讨论区 】
发信人: StarVenus (参商*极品磨工), 信区: Joke
标 题: 在学术版问一个幼儿电路题
发信站: BBS 未名空间站 (Sat Mar 16 20:51:35 2013, 美东)
如图，儿子的玩具，电路很简单，一个发电机，一个电风扇，一个发光二级管，一个导
线，串联。
如果顺时针摇发电机，发光二级管亮，电扇不转
如果逆时针摇发电机，发光二级管不亮，电扇转
为什么？
发信人: StarVenus (参商*极品磨工), 信区: Joke
标 题: 在学术版问一个幼儿电路题
发信站: BBS 未名空间站 (Sat Mar 16 20:51:35 2013, 美东)
如图，儿子的玩具，电路很简单，一个发电机，一个电风扇，一个发光二级管，一个导
线，串联。
如果顺时针摇发电机，发光二级管亮，电扇不转
如果逆时针摇发电机，发光二级管不亮，电扇转
为什么？
s*y
7 楼
usually 2nd.
【在 w*********1 的大作中提到】
: 选择一: 一次省投资，多买点
: 二: 每个月买固定额度，每个月少买些
: 假设想投资10年。那种收益比较好些？
【在 w*********1 的大作中提到】
: 选择一: 一次省投资，多买点
: 二: 每个月买固定额度，每个月少买些
: 假设想投资10年。那种收益比较好些？
c*d
8 楼
re这个
只是在欧美混，西方的文化太强势。
【在 N5 的大作中提到】
: 【 以下文字转载自 Military 讨论区 】
: 发信人: N5 (1684753590), 信区: Military
: 标 题: 坚决反对国女学习西方剃腋毛等
: 发信站: BBS 未名空间站 (Sat Dec 10 11:14:51 2011, 美东)
: 作为国人传统是身体发肤受之父母,不能随便剃的.
: 而且我不觉得剃了又啥好
只是在欧美混，西方的文化太强势。
【在 N5 的大作中提到】
: 【 以下文字转载自 Military 讨论区 】
: 发信人: N5 (1684753590), 信区: Military
: 标 题: 坚决反对国女学习西方剃腋毛等
: 发信站: BBS 未名空间站 (Sat Dec 10 11:14:51 2011, 美东)
: 作为国人传统是身体发肤受之父母,不能随便剃的.
: 而且我不觉得剃了又啥好
N*w
9 楼
OS 的 exec() 是系统调用吧，不是简单的 open and read
实际上甚至是 mmap，只在需要的时候调入内存
【在 x**m 的大作中提到】
: 如果可执行文件的权限是- - x，OS怎么保证用户在不能读取文件内容的同时，却可以
: 载入可执行文件并且执行？谢谢。
实际上甚至是 mmap，只在需要的时候调入内存
【在 x**m 的大作中提到】
: 如果可执行文件的权限是- - x，OS怎么保证用户在不能读取文件内容的同时，却可以
: 载入可执行文件并且执行？谢谢。
i*t
10 楼
为了保护发光二极管，显然并联了一个反向二极管
这样正反向电机都会转
这样正反向电机都会转
c*7
11 楼
depending on your ability to time the market,
if you are average Joe, which means pretty bad at timing the market,
then you are better off with the second one.
the second one systematically lower the risk (divergence)
if the market is more or less random.
if you are average Joe, which means pretty bad at timing the market,
then you are better off with the second one.
the second one systematically lower the risk (divergence)
if the market is more or less random.
d*a
12 楼
。。。。。管的真宽
【在 N5 的大作中提到】
: 【 以下文字转载自 Military 讨论区 】
: 发信人: N5 (1684753590), 信区: Military
: 标 题: 坚决反对国女学习西方剃腋毛等
: 发信站: BBS 未名空间站 (Sat Dec 10 11:14:51 2011, 美东)
: 作为国人传统是身体发肤受之父母,不能随便剃的.
: 而且我不觉得剃了又啥好
【在 N5 的大作中提到】
: 【 以下文字转载自 Military 讨论区 】
: 发信人: N5 (1684753590), 信区: Military
: 标 题: 坚决反对国女学习西方剃腋毛等
: 发信站: BBS 未名空间站 (Sat Dec 10 11:14:51 2011, 美东)
: 作为国人传统是身体发肤受之父母,不能随便剃的.
: 而且我不觉得剃了又啥好
i*e
13 楼
为啥我试了111权限根本不能执行
【在 N****w 的大作中提到】
: OS 的 exec() 是系统调用吧，不是简单的 open and read
: 实际上甚至是 mmap，只在需要的时候调入内存
【在 N****w 的大作中提到】
: OS 的 exec() 是系统调用吧，不是简单的 open and read
: 实际上甚至是 mmap，只在需要的时候调入内存
S*s
14 楼
您是在解释还是在建议？
【在 i*****t 的大作中提到】
: 为了保护发光二极管，显然并联了一个反向二极管
: 这样正反向电机都会转
【在 i*****t 的大作中提到】
: 为了保护发光二极管，显然并联了一个反向二极管
: 这样正反向电机都会转
t*m
15 楼
timing the market, loser's game.
c*n
16 楼
东方人本来身体汗毛就不浓密，不剃也没关系。
x*m
17 楼
发傻了，的确需要r才能运行。
T*s
18 楼
要能准确回答你的问题恐怕要把这玩意拆开看了
同样一个结果可能有很多做法
同样一个结果可能有很多做法
S*C
19 楼
Think about this hypothetical scenario.
You get a call from your broker tonight, in your IRA account, your holdings
got liquidated because of some system bug. What are your going to do with
all the cash now? Are you going to buy back all your funds tomorrow, or
dollar cost average during, say, 6-month period?
【在 c******7 的大作中提到】
: depending on your ability to time the market,
: if you are average Joe, which means pretty bad at timing the market,
: then you are better off with the second one.
: the second one systematically lower the risk (divergence)
: if the market is more or less random.
You get a call from your broker tonight, in your IRA account, your holdings
got liquidated because of some system bug. What are your going to do with
all the cash now? Are you going to buy back all your funds tomorrow, or
dollar cost average during, say, 6-month period?
【在 c******7 的大作中提到】
: depending on your ability to time the market,
: if you are average Joe, which means pretty bad at timing the market,
: then you are better off with the second one.
: the second one systematically lower the risk (divergence)
: if the market is more or less random.
l*i
20 楼
但是游泳的时候不剃， 总觉得不好
【在 c****n 的大作中提到】
: 东方人本来身体汗毛就不浓密，不剃也没关系。
【在 c****n 的大作中提到】
: 东方人本来身体汗毛就不浓密，不剃也没关系。
S*s
21 楼
为什么要拆开呢，你怀疑里面的器件和外面画的不一致？这个是教具呀。如果就是严格
的这四个部件串联，是不是不应该出现我描述的现象？
【在 T*********s 的大作中提到】
: 要能准确回答你的问题恐怕要把这玩意拆开看了
: 同样一个结果可能有很多做法
的这四个部件串联，是不是不应该出现我描述的现象？
【在 T*********s 的大作中提到】
: 要能准确回答你的问题恐怕要把这玩意拆开看了
: 同样一个结果可能有很多做法
c*7
22 楼
This is a good one, but I am not sure what my answer will be.
I will argue with my broker for the bug as a start,
but this is only a trick answer.
My hunch is either the two methods are irrelevant/give random result
or buy back is no worse than the other one.
Because why DCA it in 6 month? Why not 2 years.
Is there a best time scale or it is totally irrelevant?
I cannot imagine there is a optimized time scale for that,
so I tend to think it is irrelevant.
Do you have an answer for this?
holdings
【在 S**C 的大作中提到】
: Think about this hypothetical scenario.
: You get a call from your broker tonight, in your IRA account, your holdings
: got liquidated because of some system bug. What are your going to do with
: all the cash now? Are you going to buy back all your funds tomorrow, or
: dollar cost average during, say, 6-month period?
I will argue with my broker for the bug as a start,
but this is only a trick answer.
My hunch is either the two methods are irrelevant/give random result
or buy back is no worse than the other one.
Because why DCA it in 6 month? Why not 2 years.
Is there a best time scale or it is totally irrelevant?
I cannot imagine there is a optimized time scale for that,
so I tend to think it is irrelevant.
Do you have an answer for this?
holdings
【在 S**C 的大作中提到】
: Think about this hypothetical scenario.
: You get a call from your broker tonight, in your IRA account, your holdings
: got liquidated because of some system bug. What are your going to do with
: all the cash now? Are you going to buy back all your funds tomorrow, or
: dollar cost average during, say, 6-month period?
T*s
23 楼
上面那位兄弟给你一个解释了
【在 S*******s 的大作中提到】
: 为什么要拆开呢，你怀疑里面的器件和外面画的不一致？这个是教具呀。如果就是严格
: 的这四个部件串联，是不是不应该出现我描述的现象？
【在 S*******s 的大作中提到】
: 为什么要拆开呢，你怀疑里面的器件和外面画的不一致？这个是教具呀。如果就是严格
: 的这四个部件串联，是不是不应该出现我描述的现象？
s*z
24 楼
if you do it consistantly year over year, it doesn't make a difference.
either way is fine.
only exception is if it is huge amount of money, then I would do dca.
【在 w*********1 的大作中提到】
: 选择一: 一次省投资，多买点
: 二: 每个月买固定额度，每个月少买些
: 假设想投资10年。那种收益比较好些？
either way is fine.
only exception is if it is huge amount of money, then I would do dca.
【在 w*********1 的大作中提到】
: 选择一: 一次省投资，多买点
: 二: 每个月买固定额度，每个月少买些
: 假设想投资10年。那种收益比较好些？
S*s
25 楼
你们都受什么科学训练，他解释了半天最后一句话是“这样正反向电机都会转
”，跟我描述的根本不是同一个现象。
【在 T*********s 的大作中提到】
: 上面那位兄弟给你一个解释了
”，跟我描述的根本不是同一个现象。
【在 T*********s 的大作中提到】
: 上面那位兄弟给你一个解释了
X*r
26 楼
I have heard this argument for quite a few times, however,
This argument is flawed: while expected return is additive,
risk is not. i.e. for A and B, the risk of them together
does not equal to the sum of the risks separately, because
risk is essential the variance, which would depend on the
correlation of A and B.
In other words, if you already have your desired return/risk
balance for your particular portfolio, then the right action
after a mistaken liquidation would likely be to buy them back
ASAP in attempt to introduce as little change as possible, i.e.
to make the correlation as close to -1 as possible. On the
other hand, if you start from a pile of cash, the calculation
of variance, thus the risk, would be totally different.
holdings
【在 S**C 的大作中提到】
: Think about this hypothetical scenario.
: You get a call from your broker tonight, in your IRA account, your holdings
: got liquidated because of some system bug. What are your going to do with
: all the cash now? Are you going to buy back all your funds tomorrow, or
: dollar cost average during, say, 6-month period?
This argument is flawed: while expected return is additive,
risk is not. i.e. for A and B, the risk of them together
does not equal to the sum of the risks separately, because
risk is essential the variance, which would depend on the
correlation of A and B.
In other words, if you already have your desired return/risk
balance for your particular portfolio, then the right action
after a mistaken liquidation would likely be to buy them back
ASAP in attempt to introduce as little change as possible, i.e.
to make the correlation as close to -1 as possible. On the
other hand, if you start from a pile of cash, the calculation
of variance, thus the risk, would be totally different.
holdings
【在 S**C 的大作中提到】
: Think about this hypothetical scenario.
: You get a call from your broker tonight, in your IRA account, your holdings
: got liquidated because of some system bug. What are your going to do with
: all the cash now? Are you going to buy back all your funds tomorrow, or
: dollar cost average during, say, 6-month period?
i*e
27 楼
二极管正向导通，反向关闭啊...当然，电压特高，也会导通一下，不过那时候玩具就
坏了
坏了
S*C
28 楼
To have a right mix of diversified asset, stock, bond, cash, alternative etc
., have a plan and stick to that plan, is far more important. I will
intermediately deploy the capital according to the designated AA, and DCA
the new capital when it comes, and rebalance when the mix out of balance.
【在 c******7 的大作中提到】
: This is a good one, but I am not sure what my answer will be.
: I will argue with my broker for the bug as a start,
: but this is only a trick answer.
: My hunch is either the two methods are irrelevant/give random result
: or buy back is no worse than the other one.
: Because why DCA it in 6 month? Why not 2 years.
: Is there a best time scale or it is totally irrelevant?
: I cannot imagine there is a optimized time scale for that,
: so I tend to think it is irrelevant.
: Do you have an answer for this?
., have a plan and stick to that plan, is far more important. I will
intermediately deploy the capital according to the designated AA, and DCA
the new capital when it comes, and rebalance when the mix out of balance.
【在 c******7 的大作中提到】
: This is a good one, but I am not sure what my answer will be.
: I will argue with my broker for the bug as a start,
: but this is only a trick answer.
: My hunch is either the two methods are irrelevant/give random result
: or buy back is no worse than the other one.
: Because why DCA it in 6 month? Why not 2 years.
: Is there a best time scale or it is totally irrelevant?
: I cannot imagine there is a optimized time scale for that,
: so I tend to think it is irrelevant.
: Do you have an answer for this?
g*u
29 楼
应该是并联的, 发光说明摇的方向不对, 要反摇.
我也对楼上各位的训练表示好奇.
【在 S*******s 的大作中提到】
: 你们都受什么科学训练，他解释了半天最后一句话是“这样正反向电机都会转
: ”，跟我描述的根本不是同一个现象。
我也对楼上各位的训练表示好奇.
【在 S*******s 的大作中提到】
: 你们都受什么科学训练，他解释了半天最后一句话是“这样正反向电机都会转
: ”，跟我描述的根本不是同一个现象。
X*r
30 楼
If you start with a pile of cash, DCA over a long period towards
your intended asset mix doesn't make sense, because you have
effectively overweighted cash for that period. On the other hand,
DCA over a small window could work, depending on how you model
the market, i.e. how much fluctuation the market has versus the
cost of hold cash.
etc
【在 S**C 的大作中提到】
: To have a right mix of diversified asset, stock, bond, cash, alternative etc
: ., have a plan and stick to that plan, is far more important. I will
: intermediately deploy the capital according to the designated AA, and DCA
: the new capital when it comes, and rebalance when the mix out of balance.
:
your intended asset mix doesn't make sense, because you have
effectively overweighted cash for that period. On the other hand,
DCA over a small window could work, depending on how you model
the market, i.e. how much fluctuation the market has versus the
cost of hold cash.
etc
【在 S**C 的大作中提到】
: To have a right mix of diversified asset, stock, bond, cash, alternative etc
: ., have a plan and stick to that plan, is far more important. I will
: intermediately deploy the capital according to the designated AA, and DCA
: the new capital when it comes, and rebalance when the mix out of balance.
:
s*d
31 楼
手摇发电机发的是交流电还是直流电？ 电动机输入的要求是交流电还是直流电？
S*C
32 楼
Nobody consciously liquidate his holdings in his tax advantaged account and
DCA over a time window, I wonder why...
【在 X****r 的大作中提到】
: If you start with a pile of cash, DCA over a long period towards
: your intended asset mix doesn't make sense, because you have
: effectively overweighted cash for that period. On the other hand,
: DCA over a small window could work, depending on how you model
: the market, i.e. how much fluctuation the market has versus the
: cost of hold cash.
:
: etc
DCA over a time window, I wonder why...
【在 X****r 的大作中提到】
: If you start with a pile of cash, DCA over a long period towards
: your intended asset mix doesn't make sense, because you have
: effectively overweighted cash for that period. On the other hand,
: DCA over a small window could work, depending on how you model
: the market, i.e. how much fluctuation the market has versus the
: cost of hold cash.
:
: etc
v*m
33 楼
电风扇应该是直流的吧，发光二极管加个电阻 然后和电风扇加个反向二极管并联。
纯猜测。
纯猜测。
s*z
34 楼
really depends on how long that period is, right?
you need to balance the length of the out of balance period with the risks
of single entry point for volatile asset class like stocks or reits.
again, like others said, to have a long term plan and good asset allocation
is a lot more important than pondering on A or B.
btw, depending on where the lum sum is from, tax planning could be the
single most important thing.
【在 X****r 的大作中提到】
: If you start with a pile of cash, DCA over a long period towards
: your intended asset mix doesn't make sense, because you have
: effectively overweighted cash for that period. On the other hand,
: DCA over a small window could work, depending on how you model
: the market, i.e. how much fluctuation the market has versus the
: cost of hold cash.
:
: etc
you need to balance the length of the out of balance period with the risks
of single entry point for volatile asset class like stocks or reits.
again, like others said, to have a long term plan and good asset allocation
is a lot more important than pondering on A or B.
btw, depending on where the lum sum is from, tax planning could be the
single most important thing.
【在 X****r 的大作中提到】
: If you start with a pile of cash, DCA over a long period towards
: your intended asset mix doesn't make sense, because you have
: effectively overweighted cash for that period. On the other hand,
: DCA over a small window could work, depending on how you model
: the market, i.e. how much fluctuation the market has versus the
: cost of hold cash.
:
: etc
n*r
35 楼
LED正向导电时，压降大约2V，电流大约15mA。反向击穿（一般只需要5V就够了）时，
压降大约0.7V，内阻相对来说可忽略。所以，如果发电机在反向击穿电压以上（比如说
6V），而电动机要5V大电流才转，4V15mA不转就行了。电动机的内阻也要合适。
压降大约0.7V，内阻相对来说可忽略。所以，如果发电机在反向击穿电压以上（比如说
6V），而电动机要5V大电流才转，4V15mA不转就行了。电动机的内阻也要合适。
X*r
36 楼
Because it isn't a good idea. I don't think there is any disagreement on
that.
What I'm saying is from that you cannot deduce to the conclusion that DCA
from a pile of cash isn't good idea either, because risk is not additive.
You can only come to this conclusion if you don't care about risk but only
expected return, which is additive.
and
【在 S**C 的大作中提到】
: Nobody consciously liquidate his holdings in his tax advantaged account and
: DCA over a time window, I wonder why...
that.
What I'm saying is from that you cannot deduce to the conclusion that DCA
from a pile of cash isn't good idea either, because risk is not additive.
You can only come to this conclusion if you don't care about risk but only
expected return, which is additive.
and
【在 S**C 的大作中提到】
: Nobody consciously liquidate his holdings in his tax advantaged account and
: DCA over a time window, I wonder why...
n*r
37 楼
楼上的同学们想复杂了吧。
c*7
38 楼
aha, this clear my confusion, Thanks!
【在 X****r 的大作中提到】
: Because it isn't a good idea. I don't think there is any disagreement on
: that.
: What I'm saying is from that you cannot deduce to the conclusion that DCA
: from a pile of cash isn't good idea either, because risk is not additive.
: You can only come to this conclusion if you don't care about risk but only
: expected return, which is additive.
:
: and
【在 X****r 的大作中提到】
: Because it isn't a good idea. I don't think there is any disagreement on
: that.
: What I'm saying is from that you cannot deduce to the conclusion that DCA
: from a pile of cash isn't good idea either, because risk is not additive.
: You can only come to this conclusion if you don't care about risk but only
: expected return, which is additive.
:
: and
i*t
39 楼
俺二楼已经回答了，正向电压发光管串联，但是电流小，电机不足以运转
反向电压，发光管由于有并联保护二极管导通，电流大些可以支持电机运转，而发光管灭
楼主自己不懂而且不思考别人的答案甚至反而质疑别人，挖坑的吧，怪不得是joke版转的
【在 S*******s 的大作中提到】
: 你们都受什么科学训练，他解释了半天最后一句话是“这样正反向电机都会转
: ”，跟我描述的根本不是同一个现象。
反向电压，发光管由于有并联保护二极管导通，电流大些可以支持电机运转，而发光管灭
楼主自己不懂而且不思考别人的答案甚至反而质疑别人，挖坑的吧，怪不得是joke版转的
【在 S*******s 的大作中提到】
: 你们都受什么科学训练，他解释了半天最后一句话是“这样正反向电机都会转
: ”，跟我描述的根本不是同一个现象。
a*w
40 楼
如果不time market，完全随机的话，两种方法的收益是一样的。
当然你可能在开头一下子拿不出那么多钱，那就只能用第二种方法。
【在 w*********1 的大作中提到】
: 选择一: 一次省投资，多买点
: 二: 每个月买固定额度，每个月少买些
: 假设想投资10年。那种收益比较好些？
当然你可能在开头一下子拿不出那么多钱，那就只能用第二种方法。
【在 w*********1 的大作中提到】
: 选择一: 一次省投资，多买点
: 二: 每个月买固定额度，每个月少买些
: 假设想投资10年。那种收益比较好些？
S*s
41 楼
这个不能完全怪我吧。你的第一个帖子里明明说的是“这样正反向电机都会转”，我认
为和你现在说的不一样。
管灭
转的
【在 i*****t 的大作中提到】
: 俺二楼已经回答了，正向电压发光管串联，但是电流小，电机不足以运转
: 反向电压，发光管由于有并联保护二极管导通，电流大些可以支持电机运转，而发光管灭
: 楼主自己不懂而且不思考别人的答案甚至反而质疑别人，挖坑的吧，怪不得是joke版转的
为和你现在说的不一样。
管灭
转的
【在 i*****t 的大作中提到】
: 俺二楼已经回答了，正向电压发光管串联，但是电流小，电机不足以运转
: 反向电压，发光管由于有并联保护二极管导通，电流大些可以支持电机运转，而发光管灭
: 楼主自己不懂而且不思考别人的答案甚至反而质疑别人，挖坑的吧，怪不得是joke版转的
S*C
42 楼
What we care about as investor is risk-adjusted return. DCA from a pile of
cash may reduce downside risk, at least in nominal term, but the risk-return
trade-off is anyone's guess, and it is a form of market timing based on
pretty much nothing, the end results vs. lump-sum are pure luck. It has one
psychological benefit though, it helps people to enter the market.
【在 X****r 的大作中提到】
: Because it isn't a good idea. I don't think there is any disagreement on
: that.
: What I'm saying is from that you cannot deduce to the conclusion that DCA
: from a pile of cash isn't good idea either, because risk is not additive.
: You can only come to this conclusion if you don't care about risk but only
: expected return, which is additive.
:
: and
cash may reduce downside risk, at least in nominal term, but the risk-return
trade-off is anyone's guess, and it is a form of market timing based on
pretty much nothing, the end results vs. lump-sum are pure luck. It has one
psychological benefit though, it helps people to enter the market.
【在 X****r 的大作中提到】
: Because it isn't a good idea. I don't think there is any disagreement on
: that.
: What I'm saying is from that you cannot deduce to the conclusion that DCA
: from a pile of cash isn't good idea either, because risk is not additive.
: You can only come to this conclusion if you don't care about risk but only
: expected return, which is additive.
:
: and
i*t
43 楼
不管转不转，答案都一样，而转不转只取决于发光管电流大小和电机启动电流大小而已
如果你不懂，你可以质疑，而不是妄加评论和讽刺，搞笑不是这么搞的
【在 S*******s 的大作中提到】
: 这个不能完全怪我吧。你的第一个帖子里明明说的是“这样正反向电机都会转”，我认
: 为和你现在说的不一样。
:
: 管灭
: 转的
如果你不懂，你可以质疑，而不是妄加评论和讽刺，搞笑不是这么搞的
【在 S*******s 的大作中提到】
: 这个不能完全怪我吧。你的第一个帖子里明明说的是“这样正反向电机都会转”，我认
: 为和你现在说的不一样。
:
: 管灭
: 转的
a*w
44 楼
DCA在减少downside risk的同时，也减少了upside risk。所以DCA对于
绝对return或risk-adjusted return都没有影响。
return
one
【在 S**C 的大作中提到】
: What we care about as investor is risk-adjusted return. DCA from a pile of
: cash may reduce downside risk, at least in nominal term, but the risk-return
: trade-off is anyone's guess, and it is a form of market timing based on
: pretty much nothing, the end results vs. lump-sum are pure luck. It has one
: psychological benefit though, it helps people to enter the market.
绝对return或risk-adjusted return都没有影响。
return
one
【在 S**C 的大作中提到】
: What we care about as investor is risk-adjusted return. DCA from a pile of
: cash may reduce downside risk, at least in nominal term, but the risk-return
: trade-off is anyone's guess, and it is a form of market timing based on
: pretty much nothing, the end results vs. lump-sum are pure luck. It has one
: psychological benefit though, it helps people to enter the market.
S*s
45 楼
how do you differentiate 质疑 from 妄加评论和讽刺? and how do you apply such
approaches on what I wrote here?
how do you think you qualified to establish rules for 搞笑?
【在 i*****t 的大作中提到】
: 不管转不转，答案都一样，而转不转只取决于发光管电流大小和电机启动电流大小而已
: 如果你不懂，你可以质疑，而不是妄加评论和讽刺，搞笑不是这么搞的
approaches on what I wrote here?
how do you think you qualified to establish rules for 搞笑?
【在 i*****t 的大作中提到】
: 不管转不转，答案都一样，而转不转只取决于发光管电流大小和电机启动电流大小而已
: 如果你不懂，你可以质疑，而不是妄加评论和讽刺，搞笑不是这么搞的
i*t
46 楼
大家辛苦回答半天。一个谢字都没有从你口里出来，你看不懂答案却反而说别人训练有
问题，你咋想的？
想说英文就不要夹杂中文，好不好。又来搞笑了，还真把幼儿玩具当大学实验器具了，
二者差的远了。
such
【在 S*******s 的大作中提到】
: how do you differentiate 质疑 from 妄加评论和讽刺? and how do you apply such
: approaches on what I wrote here?
: how do you think you qualified to establish rules for 搞笑?
问题，你咋想的？
想说英文就不要夹杂中文，好不好。又来搞笑了，还真把幼儿玩具当大学实验器具了，
二者差的远了。
such
【在 S*******s 的大作中提到】
: how do you differentiate 质疑 from 妄加评论和讽刺? and how do you apply such
: approaches on what I wrote here?
: how do you think you qualified to establish rules for 搞笑?
S*s
47 楼
我问为什么正着转灯不亮，反着不转灯亮，你解释了一通最后说这样正反都会转，这种
回答正常人都会感觉很无语吧。
【在 i*****t 的大作中提到】
: 大家辛苦回答半天。一个谢字都没有从你口里出来，你看不懂答案却反而说别人训练有
: 问题，你咋想的？
: 想说英文就不要夹杂中文，好不好。又来搞笑了，还真把幼儿玩具当大学实验器具了，
: 二者差的远了。
:
: such
回答正常人都会感觉很无语吧。
【在 i*****t 的大作中提到】
: 大家辛苦回答半天。一个谢字都没有从你口里出来，你看不懂答案却反而说别人训练有
: 问题，你咋想的？
: 想说英文就不要夹杂中文，好不好。又来搞笑了，还真把幼儿玩具当大学实验器具了，
: 二者差的远了。
:
: such
i*t
48 楼
幼儿问题+joke版+转载，俺看帖只花1秒，但是回答却是认真并正确的，答案就是电路
通不通的问题，而不是转不转问题，因为理论上只要有电流电机就要转，而你也知道事
实不转
好奇这种贴也能上joke版，一点不搞笑
通不通的问题，而不是转不转问题，因为理论上只要有电流电机就要转，而你也知道事
实不转
好奇这种贴也能上joke版，一点不搞笑
S*s
49 楼
你得知道世界上有很多事情是你不知道的。比如这个站上哪个版叫做学术版。
【在 i*****t 的大作中提到】
: 幼儿问题+joke版+转载，俺看帖只花1秒，但是回答却是认真并正确的，答案就是电路
: 通不通的问题，而不是转不转问题，因为理论上只要有电流电机就要转，而你也知道事
: 实不转
: 好奇这种贴也能上joke版，一点不搞笑
【在 i*****t 的大作中提到】
: 幼儿问题+joke版+转载，俺看帖只花1秒，但是回答却是认真并正确的，答案就是电路
: 通不通的问题，而不是转不转问题，因为理论上只要有电流电机就要转，而你也知道事
: 实不转
: 好奇这种贴也能上joke版，一点不搞笑
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