M. JEDRZEJCZYK 781
Table 1. Comparative analysis of the 1.5 kW engines manu-
factured in Poland and the USA.
TAMEL (Poland) BALDOR ELECTRIC (USA)
Power 1.5 kW
Sg 90 L-4
B3
400 V
50 Hz
Insulation class F
1200 rpm
Power 1.5 kW
4 Pole
B3 Mounting
460 V
50 Hz
Insulation class F
1140 rpm
SALE PRICE:
424.00 zł $ 637
AFTER TRANSLATION (CONVERSION):
$193 1399.2 zł
duced in the USA by Baldor Electric Co. The end cus-
tomer use of the above-mentioned engines may be con-
sidered the same in spite of the slight differences in pa-
rameters. Table 1 presents the technical specifications of
the engines and selling prices on the domestic markets.
The exchange rate was assumed at the market level of
3.3 zloty per one dollar, according to the conducted
market observation1. If we try to compute the value of
the engine in Polish zloty, we will discover a huge dif-
ference in the resulting amounts. The American price for
the product and the exchange rate between the US dollar
and the Polish zloty gives us a total of 1399.2 zł. There-
fore, preliminary analysis shows great inconsistencies
with the law of one price, which states that the price of
the same or almost the same goods in the different mar-
kets should be equal. We might add that the law of one
price is applied in every methodology specifying conver-
sion rules, but is not necessarily a written law. Using the
exchange rate, which fluctuates but still remains on a
similar level, we can say that the law of one price does
not work in this case at all. This means that the values on
the international scale are incomparable. This was con-
firmed as well by Pakko and Pollard in 1996 on the
BigMac example [3].
It should also be stressed that the US Financial Ac-
counting Standards Board believes that “for an enterprise
operating in multiple currency environments, a true sin-
gle unit of measure does not, as a factual matter, exist”
[4]. In the passage that follows, we read, “the temporal
method obscures the fact of multiple units by requiring
all transactions to be measured as if the transactions oc-
curred in dollars.” The above mentioned method seems
to be treated as the best of all known algorithms. “The
most relevant information about the performance and
financial position of foreign entities is provided by the
functional currency financial statements of those entities.
Using the current exchange rate to restate those func-
tional currency financial statements in terms of their cur-
rent dollar equivalent preserves that most relevant infor-
mation” [4]. These quotes lead one to conclude that the
one and only method of translation in the consolidated
financial statements is based on the exchange rate.
In many published papers, for example W. Kołodko
and others, there is a noticeable tendency to avoid the
exchange rate in international comparisons [5]. Instead of
using the exchange rate, the authors use the so-called
Purchasing Power Standard (PPS), which represents the
equal bundle of goods and services in each country that
underlies the comparison. So, according to the above-
mentioned methodology, GDP is shown in one artificial
currency, which constitutes an attempt to avoid including
the exchange rate in the comparison.
However, there are many aspects of the translation
process, in which noticeable inconsistencies take place.
Therefore, the most important matter is to clarify the
essence of the money and monetary unit value and their
determinants in the international context. In the forth-
coming sections of the paper, labor productivity as the
determinant of the monetary unit value will be formally
presented.
2. Labor Productivity as a Determinant of
Money Value in the International Context
There are many theories describing the exchange rate
behavior. The fundamental assumption is Law of One
Price, formulated by English economist Keith Pilbeam,
stating that equal goods should have the same price on
different markets in the absence of transport costs and
barriers to trade [6]. So-called absolute Purchasing Po-
wer Parity (PPP) is based directly on the Law of One
Price and estimates the exchange rate as the value rela-
tionship between two identical goods on different mar-
kets. For instance, if the bundle of goods costs 200 zł in
Poland and $100 in the US, the exchange rate as defined
as zlotys per dollar should be 200 zł/$100 = 2 zł/$. Thus
the absolute version can be described with the following
simple formula:
P
A
q
ER q
,
where ER = exchange rate, qP = value on the Polish
market, and qA = value on the American market.
The relative PPP argues that the exchange rate adjusts
for inflation differences between two countries:
%∆S = %∆P – %∆P*,
where %∆S = percentage change of the exchange rate,
%∆P = domestic inflation rate, and %∆P* = the foreign
exchange rate. The long-run testing of the relative PPP
had shown many inconsistencies and finally has not been
1The exchange rate has oscillated around 3.3 zloty per one dollar in the
first half of 2012.
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