Sunday, November 18, 2007

再加五首

自從教了女兒下江陵之後,之後我又試了五首詩. 但是這五首得到的反應卻不大一樣.

送孟浩然之廣陵 - 李白
故人西辭黃鶴樓,煙花三月下州。
孤帆遠影碧山盡,惟見長江天流。

過故人莊 - 孟浩然
故人具雞黍,邀我至田家。
綠樹村邊合,青山郭外斜。
開軒面場圃,把酒話桑麻。
待到重陽日,還來就菊花。

黃鶴樓 - 崔顥
昔人已乘黃鶴去,此地空餘黃鶴樓。
黃鶴一去不復返,白雲千載空悠悠。
晴川歷歷漢陽樹,芳草萋萋鸚鵡洲。
日暮鄉關何處是?煙波江上使人愁。

終南望積雪 - 祖詠
終南陰嶺秀, 積雪浮雲端。
林表明霽色, 城中增暮寒。

楓橋夜泊 - 張繼
月落烏啼霜滿天,江楓漁火對愁眠,
姑蘇城外寒山寺,夜半鐘聲到客船。

我女兒似乎最喜歡"送孟浩然之廣陵"和"過故人莊". 她對"黃鶴樓"和"終南望積雪"的反應卻不怎麼樣. "終南望積雪"對她她的中文程度,可能是繞口了一點. 至於"黃鶴樓", 也許是我說故事的功夫不行, 每次說到"日暮鄉關何處是,煙波江上使人愁", 她就安靜無聲. 但是有的時候也不全然如此. 也許有時我應該讓她講給我聽. 或許全然不是我想的這麼一回事.

Monday, November 12, 2007

U.S. Monster Employment Index

I wrote a report on US Monster Employment Index for the business class I took at UC Berkeley Extension.


The U.S. Monster Employment Index is a monthly analysis of U.S. online job demand conducted by Monster Worldwide, Inc. (www.monsterworldwide.com), the parent company of Monster.com. Since my report was to explore less-used indices, I thought it would be interesting to see if the US Monster Employment Index exhibits the same characteristics as the US Help-Wanted Advertisement Index. As more and more employers move their hiring ads online, the Monster Index may tell us something different. You can see the part of my report on Monster Index at the end of the blog.

The report was written in March and more than a half year has passed. It is time to revisit my forecast and see how US economy is doing. Earlier this year, the ever rising price of oil was already a known problem. The potential ramification of US sub-prime mortgage was merely on the radar screen. Nevertheless, the US economy was strong. I predicted the Monster index for March to be 181, yet the actual number was 185, a more than 12% year-to-year increase. It was stronger than I have expected. The index topped in May to 189 and stagnated since then. As the Monster Index is not seasonally adjusted, the month-to-month change does not provide much insight into any short-term significance. The trend of year-over-year changes, however, has been on a consistent downhill slope, from 25% in January 2006 to 9% last month. Isn't a year-over-year increase good enough, even in single digit? Let's say, if the index stays at 190 until February 2008, the year-over-year change will still show a gain higher than 7%, while the index is not gaining anything. It is practically stagnant.



Is recession near? In February, former Federal Reserve Chairman Alan Greenspan warned that the US economy may fall into recession by the end of 2007. Mr. Greespan modified his tone a little bit in the past few months. Current Chairman Ben Bernanke expected a soft landing. If the Monster Index is telling us anything, it looks like Mr. Bernanke will not get an immediate recession, at least for the next few months. Whether Mr. Bernanke will get what he hoped for a soft landing, the Monster Index is still too young to tell.

Part of my report on US Monster Employment Index, written in March, 2007

The U.S. Monster Employment Index depicted in the following diagram shows the monthly index values for the past year. The values are not seasonally adjusted due to the short history of Monster Employment Index.


Figure 1: U.S. Monster Employment Index Jan 06 to Feb 07

The U.S. Monster Employment Index increased nine points in February to 177, which is the highest level since its inception. It was contributed by a strong and broad increase in online recruitment for workers across the United States. During the month of February, 19 of 20 industries, and all nine U.S. Census Bureau regions reported increased online job availability. The Index’s year-over-year growth rate also edged higher to a total of 20 points or 12.7 percent. It was however a slower rate compared to February 2006 year-over-year growth, which scored 35 points or 28.7%.

It was a sign of relief to see such a sharp growth in February. This gain compensated the weaker-than-usual growth in January as December was usually the weakest month of online recruitment from Monster’s historical data. The monthly percentage change may give an impression that the online job demand is increasing by leaps and bounds. However it was more of regaining ground for which was lost in December 2006 when the index recorded the deepest December drop since 2003. The overall moderating trend was also observed in the 3-month moving average index values and year-over-year change curve. The 3-month moving average is stagnant since August 2006 and the year-over-year change slows down steadily.

Monster started to report U.S. online employment index as U.S. came out of last economic trough for about two years. The U.S. economy was moving from recovery into expansion mode at that time. For the past three years, U.S. Monster Employment Index has demonstrated a consistent growth pattern which coincided with U.S. economic expansion. The index has never seen a significant or prolonged decrease since its inception. Nevertheless, this growing trend started to show moderation in early 2006 and became stagnant late last year.

Our estimate for March 2007 is the index will report a mild increase that follows the trend throughout the past year. If we follow the moderating nature of the year-over-year change for the next release and use a number between 10% and 11% as an estimated rate, the index value for March 2007 will be around 181, a monthly change of roughly 2%. Since the U.S. Monster Employment index is not the most anticipated economic index among the market participants, there is no consensus estimate available for comparison.

Monster Employment Index is similar to the Help-Wanted Index, but instead of using newspaper ads, Monster index is collected based on online postings. It may have a similar, leading indicator characteristic as the Help-Wanted Index that it tends to peak before the economy peaks. As the market looks for signs for the direction of economy, a stagnant or even a decreasing employment index will weigh in on the opinion that the economy is close to the turn from peak to recession.

Sunday, November 11, 2007

Facebook and Social Networking

I have to write this down before I forget why I started this.

I attended this conference in San Jose, "Graphing Social Patterns: The Business & Technology of Facebook" (http://graphingsocial.com/). Because of work and some other arrangement, I was there only for the last day. The keynote speaker that morning was Tim O’Reilly, the founder and CEO of O’Reilly Media. He was talking about the latest O'Reilly Radar Report, "The Facebook Application Platform". He quoted a lot of numbers and examples from the report, while I was waiting for the caffeine from the coffee I just gulped down to kick in. I was not sure I have heard every word he said.

Mr. O'Reilly's final comment was probably the only thing that caught my attention and resounded in my head for the rest of that day. He said that he believes we are at a very early stage of using the web as a tool for social networking and it is hard to say what this will evolve into. Seeing all the cool presentations and envisioning those young engineers morphing into future CEO's and VP's of engineering, I was wondering where we are heading to and what will happen along the way. Is there a better way to experience it?

Two weeks later, I started this blog.

Tuesday, November 6, 2007

iPhone - A Product that Changes User Behaviors

Apple's iPhone is a unique product in many aspects.
(http://www.apple.com/iphone/)

The first release of iPhone on June 29, 2007 did not have all the bells and whistles. It was a GSM phone with EDGE for Internet connection. It did not have a GPS and its 2 mega-pixel camera could not shoot videos. It was pricy ($499 for the 4GB version and $599 for the 8GB version) and locked with one carrier, AT&T. However, this product changed the cell phone industry overnight.

One of my friends got his iPhone and activated it. The second day he and his wife were on their way to Chicago for vacation. Before, they would have brought maps for the places they were going to visit and planned the routes before arriving in the city. Not this time! They logged all the points of interest in a note in the phone and used Google Map any time they felt like it. When they found something interesting during the trip and wanted to find out more before improvising on the itinerary, the Internet browser and search engines were in the pocket with them all the time.

What is dramatic about this? This friend of mine had never subscribed any data service for cell phone before that day, and he had hardly expressed any interest in using such a service for mobile applications. This is the main-stream attitude of US consumers towards their beloved cell phones. Yet iPhone had him converted. There were hundreds of millions of savvy Internet users waiting for the cell phone industry to enable them to do what they have been doing for a decade. The killer application that the industry dreamed about is not anything new. It is the enabler to mobilize what people are doing day in and day out. Apple got it and Apple got the glory, mind share, and profit, of course.

I will blog a little more about iPhone and continue to watch Apple's next move. In the meantime, it will be interesting to see what Google's Open Handset Alliance can do to the market. After all, user experience comes as a total package, so is the cell phone.