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全部话题 - 话题: permno
1 (共1页)
j**********e
发帖数: 442
1
来自主题: Business版 - cusip vs. permno
各位高手,我有个数据库只有cusip和公司名没有permno,大家有什么办法能给它们找到
permno? (公司名和crsp的公司名不完全一致) 多谢!
j**********e
发帖数: 442
2
来自主题: Quant版 - Permno, cusip
各位高手,我有个数据库只有cusip和公司名没有permno,大家有什么办法能给它们找到
permno? (公司名和crsp的公司名不完全一致) 多谢!
b*****x
发帖数: 44
3
来自主题: Business版 - cusip vs. permno
请问SDC里面的cusip是history 还是 current的?
跟 crsp 的cusip match的话,如何算是正确?
现在用 crsp 跟 compustat merged数据获得老的 cusip sic permno 等,然后跟
compustat 匹配找到accounting data.然后 用 cusip 日期去匹配sdc 的event数据。
看起来丢失不少。有点怀疑sdc的cusip.
b*****x
发帖数: 44
4
来自主题: Business版 - 同问 SDC CRSP COMPUSTAT cusip vs. permno
请问SDC里面的cusip是history 还是 current的?
跟 crsp 的cusip match的话,如何算是正确?
现在用 crsp 跟 compustat merged数据获得老的 cusip sic permno 等,然后跟
compustat
匹配找到accounting data.然后 用 cusip 日期去匹配sdc 的event数据。看起来丢失
不少。有
点怀疑sdc的cusip.
f********t
发帖数: 117
5
来自主题: Quant版 - Permno, cusip
permno is crsp specific, other dbs dont have it.
crsp also has 8 digit cusip. so you need to make sure cusip in your db is
also 8 digit to match it. there wont be perfect match.
s****d
发帖数: 244
6
来自主题: Faculty版 - SAS求助!
各位大神,我用下面的代码合并两个数据库,但是合并后的数据库中prices都为
missing value。请教是怎么回事啊?谢谢!
data bm;
set bm;
rename standard_and_poor_s_identifier=gvkey
historical_CRSP_permno_link_to_C=permno
data_date=date
company_name=cname
common_shares_used_to_calculate=cshr
var7=eps
Market_Value___Total=market;
format date ddmmyy10.;
cyear=year(date);
quarter=qtr(date);
run;
data mylib.prices;
set mylib.prices;
format date date9.;
cyear=year(date);
quarter=qtr(date);
run;
proc sql;
cr... 阅读全帖
a*****e
发帖数: 159
7
来自主题: Faculty版 - SAS求助!
on a.permno=b.permno and intck('month',a.date, b.date)=0
l*********g
发帖数: 177
8
来自主题: Statistics版 - 召唤!向大家请教1个sas 问题
先上2个代码
代码1:
proc sql;
create table temp1
as select distinct a.permno, b.*
from DivEvents a, caldates b
where b.evt_date-a.date =0
;
quit;
代码2:
proc sql;
create table temp1
as select distinct a.permno, b.*
from DivEvents a, caldates b
where b.evt_date=a.date
;
quit;
按我的理解,这2个代码照理应该是得到同样的结果。但是我发现结果居然极为不同,
其中代码1只生成了6000个observation,而代码2生成了210000个observation。代码2
是我要的结果,但是我不明白为什么代码1会有不同结果,我开始担心我是否其他code
里有出现相关的bug了。请大家指点一下怎么回事把?为什么不同结果呢?非常谢谢!
i*********9
发帖数: 44
9
在WRDS网页上看到的Sample SAS Program,今天运行了好几次,都出现error message:
ERROR: File CRSPLIB.MSF.DATA does not exist
下面是SAS Program:请指教。多谢!!
(代码来源于:http://wrds-web.wharton.upenn.edu/wrds/support/Accessing%20and%20Manipulating%20the%20Data/_003PCSAS%20Connect/Unix%20and%20PC%20SAS%20Connect.cfm
%let wrds=wrds.wharton.upenn.edu 4016;
options comamid=TCP remote=WRDS;
signon username=_prompt_;
rsubmit;
libname crsplib '/wrds/crsp/sasdata';
data temp;
set crsplib.msf;
where permno = 12490 and date gt '01JAN2001'd;
k******w
发帖数: 269
10
来自主题: Business版 - cusip vs. permno
how about ticker?
D*****a
发帖数: 2847
11
来自主题: Business版 - cusip vs. permno
用ftp软件例如filezilla上 sftp://Y****[email protected]
/wrds/crsp/sasdata/sd 下面有个stocknames的SAS数据
里面就是这种对应的信息
s***r
发帖数: 1121
12
来自主题: Business版 - cusip vs. permno
use crsp.cstlink
This is very standard way.
v*******y
发帖数: 5530
13
来自主题: Business版 - cusip vs. permno
多种方法
但是先搞清楚cusip是historical cusip还是current cusip
j**********e
发帖数: 442
14
来自主题: Business版 - cusip vs. permno
多谢!不好意思,如何使用filezilla啊?
m********5
发帖数: 619
15
来自主题: Business版 - cusip vs. permno
SDC里面的cusip是historical cusip
应该和CRSP里面的 NCUSIP match
s***r
发帖数: 1121
16
来自主题: Business版 - 同问 SDC CRSP COMPUSTAT cusip vs. permno
Check WRDS sample SAS code.
s***r
发帖数: 1121
17
来自主题: Business版 - 同问 SDC CRSP COMPUSTAT cusip vs. permno
Check WRDS sample SAS code.
j**********e
发帖数: 442
18
来自主题: Economics版 - Urgent Question
Does anybody know how to find permno for a list of companies in CRSP? Thanks
a lot!
s*******e
发帖数: 226
19
来自主题: Statistics版 - questions about intercept term in regression
Below is my SAS code for the problem. As you said, u_i would be
estimated as u_i~N(a,simga)if the intercept is specified as u_i (random)
only, then the coefficient of covariates should not change no matter a
is included or not. But it is not the case in my results.
"
proc mixed data=temp method=reml covtest ;
class permno year;
model loggev= lagq2 compiii softyr hardyr compiii*lagq2 softyr*lagq2
hardyr*lagq2 log_market_value diver pcsale_ratio
stockindexrt/ solution noint;
*noint is specified
m**********r
发帖数: 122
20
来自主题: Statistics版 - 关于 data merge
正在看 data merge, 有个例子是这样得
data newdata;
merge yourdata (in=a) otherdata (in=b);
by permno date;
请问这里的(in=a) 和(in=b)是什么意思。
e****o
发帖数: 690
21
来自主题: Statistics版 - daily data 求助 coding correct?
data input;
seed = 1245;
do id = 10000 to 99009 by 52;
do year = 2001 to 2008;
do i = 1 to 300 ;
return = abs(34.45 + rannor(seed*4)*5)/100 - rannor(seed*100)/5.05;;
if id < 50000 then datadate = mdy(12, 31, year) ; else datadate = mdy(6, 30
, year);
trade_date = datadate + i ;
output ;end; end; end;
drop seed i;
format datadate trade_date date9. ;
run ;
proc sort data = input; by permno trade_date ; run ;
%macro daily_return;
proc expand data = input out = i2 ;
id trade_date ;
by id ;
%do i = ... 阅读全帖
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